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TOPS-10 STOPCODE SPECIFICATION
April 1984
This document describes stopcodes for
the TOPS-10 monitor, GALAXY, and
DECnet-10 software.
OPERATING SYSTEM: TOPS-10 Version 7.02
GALAXY Version 4.1
SOFTWARE: DECnet-10 Version 3.0
i
First Printing, December 1980
Revised, April 1984
The information in this document is subject to change without notice
and should not be construed as a commitment by Digital Equipment
Corporation. Digital Equipment Corporation assumes no responsibility
for any errors that may appear in this document.
The software described in this document is furnished under a license
and may only be used or copied in accordance with the terms of such
license.
No responsibility is assumed for the use or reliability of software on
equipment that is not supplied by DIGITAL or its affiliated companies.
Copyright C , 1980, 1984 Digital Equipment Corporation.
All Rights Reserved.
The postage-prepaid READER'S COMMENTS form on the last page of this
document requests the user's critical evaluation to assist us in
preparing future documentation.
The following are trademarks of Digital Equipment Corporation:
DEC MASSBUS UNIBUS
DECmate PDP VAX
DECsystem-10 P/OS VMS
DECSYSTEM-20 Professional VT
DECUS Rainbow Work Processor
DECwriter RSTS
DIBOL RSX
ii
CONTENTS
1.0 MONITOR STOPCODE DEFINITION . . . . . . . . . . . . 1
1.1 DEBUG Stopcodes . . . . . . . . . . . . . . . . . 1
1.2 JOB Stopcodes . . . . . . . . . . . . . . . . . . 2
1.3 STOP Stopcodes . . . . . . . . . . . . . . . . . . 2
1.4 CPU Stopcodes . . . . . . . . . . . . . . . . . . 3
1.5 HALT Stopcodes . . . . . . . . . . . . . . . . . . 3
2.0 CONTINUABLE STOPCODE . . . . . . . . . . . . . . . 4
3.0 LIST OF STOPCODES . . . . . . . . . . . . . . . . . 6
APPENDIX A DECnet-10 STOPCODES
A.1 STOPCODE DEFINITIONS . . . . . . . . . . . . . . . A-1
A.1.1 INF Stopcodes . . . . . . . . . . . . . . . . . A-1
A.1.2 CHK Stopcodes . . . . . . . . . . . . . . . . . A-2
A.1.3 HLT Stopcodes . . . . . . . . . . . . . . . . . A-2
A.2 LIST OF STOPCODES . . . . . . . . . . . . . . . . A-3
APPENDIX B GALAXY-10 STOPCODES
B.1 STOPCODE DEFINITIONS . . . . . . . . . . . . . . . B-1
B.2 LIST OF STOPCODES . . . . . . . . . . . . . . . . B-2
iii
iv
PREFACE
This document briefly describes the TOPS-10 monitor, GALAXY, and
DECnet-10 stopcodes. This specification was designed to assist the
user in analyzing stopcode messages to investigate and undertake
corrective action when the TOPS-10 monitor, GALAXY, or DECnet-10
software unexpectedly fails.
Audience Requirements
The following manuals provide additional information for analyzing and
regenerating a TOPS-10 monitor, GALAXY, and DECnet-10 software.
o DECnet-10 Network Generation and Installaton Procedures
describes the procedures for generating and installing
DECnet-10 software on DECsystems-1090/1091 and
DECSYSTEM-2020.
o DECnet-10 System Manager's Guide describes the operational,
control, and monitoring functions of DECnet-10.
o TOPS-10 Operator's Guide describes the procedure for
reloading a TOPS-10 system.
o TOPS-10 Crash Analysis Guide describes how to analyze a
crash, and how to prevent future monitor errors.
o TOPS-10/TOPS-20 Batch Reference Manual describes user
procedures for the TOPS-10 and TOPS-20 batch systems.
o TOPS-10/TOPS-20 SPEAR Manual describes the SPEAR program,
which provides a dump to help analyze a hardware errors.
Organization
This document describes the TOPS-10 monitor, GALAXY, and DECnet-10
stopcodes.
There are five types of TOPS-10 monitor stopcodes. A description of
each stopcode is given along with a corresponding example. In
addition, continuable stopcodes are described and examples of
continuable DEBUG and STOP stopcodes are provided. This section
concludes with an alphabetical listing of all TOPS-10 monitor
stopcodes.
Appendix A summarizes the three types of DECnet-10 stopcodes and
presents an alphabetical listing of the stopcodes.
Appendix B lists stopcodes that can occur when running GALAXY under
the TOPS-10 monitor. These stopcodes are listed in alphabetical
order.
v
vi
TOPS-10 Monitor Stopcodes
This section describes the TOPS-10 monitor stopcodes. A stopcode
message is generated when the monitor detects a serious error in its
data base. This section describes the five types of monitor
stopcodes, and briefly explains and illustrates continuable stopcodes.
An alphabetical listiing of all monitor stopcodes is presented at the
end of this section.
1.0 MONITOR STOPCODE DEFINITION
When the TOPS-10 monitor encounters an internal error it issues a
three-letter message called a stopcode. The stopcode is displayed on
the console terminal (CTY) and alerts you of possible system failure,
depending on the severity of the error. The stopcode message is
generated by a stopcode macro when the monitor detects an error in the
data base. This macro prints the following message on the CTY:
?CPUn monitor error. Stopcode name is xxx
Where:
n is a symbol identifying the CPU.
xxx is a symbol identifying the error.
The five types of stopcodes described in this specification include:
1. DEBUG
2. JOB
3. STOP
4. CPU
5. HALT
1.1 DEBUG Stopcodes
A DEBUG stopcode is a stopcode that is not immediately harmful to any
job or to the system. When the monitor encounters an internal error
at the interrupt level, a dump is performed and processing continues.
The following message prints on the CTY:
?CPUn monitor error. Stopcode name xxx
[Continuing system]
1
TOPS-10 Monitor Stopcodes
1.2 JOB Stopcodes
A JOB stopcode indicates that an internal error endangers the
integrity of the job that currently is running. The monitor aborts
the current job and continues processing. The following message is
printed on the CTY:
?CPUn monitor error. Stopcode name xxx
[Aborting job]
On the user's terminal, the following message is displayed:
?Monitor error; UUO at addr
Where:
addr is one of the following:
o User location n;
o Exec location n; Exec called from exec location m
o Exec location n; Exec called from user location m
m and n are virtual memory addresses
1.3 STOP Stopcodes
A STOP stopcode indicates an internal error that endangers the
integrity of the entire system. All jobs are aborted and the system
begins to automatically dump and reload the monitor. The monitor
prints the following message on the CTY:
?CPUn monitor error. Stopcode name xxx
Reload monitor
If the monitor obtains the necessary information, it prints a
supplementary message on the CTY of the form:
JOB jobn on TTYnnn running name
UUO is octal representation at user PC address
File filespec
Where:
jobn is the number of the job causing the error.
nnn is the number of the job controlling the
terminal.
name is the name of the program running for that
job.
octal is the octal representation of the monitor
representation call failing for that job.
address is the value of the program counter for that
job.
filespec is the file specification for the file being
accessed.
2
TOPS-10 Monitor Stopcodes
1.4 CPU Stopcodes
A CPU stopcode has the same effect as a STOP stopcode. When a CPU
stopcode occurs on a single-processor system, or on the last processor
on a multiprocessor system, the effect is the same as a STOP stopcode.
All user jpbs are aborted and the system begins tto auomatically dump
and reload the monitor. Otherwise, the CPU stopcode aborts the jobs
and a dump is taken, but the monitor must be reloaded manually. The
following message is printed on the CTY:
?CPUn monitor error. Stopcode name xxx
Reload monitor
For SMP systems in which a CPU a stops, the following message is
displayed:
[Stopping CPU]
If the monitor obtains the necessary information, it prints a
supplementary message on the CTY of the form:
Job jobn on TTYnnn Running name
UUO is octal representation at user PC address
File filespec
Where:
jobn is the number of the job causing the error.
nnn is the number of the job controlling the
terminal.
name is the name of the program running for that
job.
octal is the octal representation of the monitor
representation call failing for that job.
address is the value of the program counter for that
job.
filespec is the file specification for the file being
accessed.
1.5 HALT Stopcodes
A HALT stopcode indicates a fatal error and affects the entire system.
The monitor cannot automatically reload. The system halts, and you
must manually dump and reload the monitor. (See Part VI of the
TOPS-10 Operator's Guide.)
HALT stopcodes generates the following message:
KL HALTED.
3
TOPS-10 Monitor Stopcodes
2.0 CONTINUABLE STOPCODE
Continuable stopcodes occur when the monitor executes a stopcode
macro, dumps the memory image, and continues the system automatically.
HALT and STOP stopcodes are not continuable. A CPU stopcode is
continuable on SMP systems in which a CPU stopcode stops the CPU and
displays the message:
[Stopping CPU]
Other types of CPUs that receive the CPU stopcode must be manually
reloaded.
The following three examples illustrate continuable DEBUG stopcodes:
Example 1:
?CPU0 monitor error. Stopcode name is ICN
CPU Status Block on 30-May-80 19:29:21
CONI APR, = 001060,,004102
CONI PI, = 000000,,000777
CONI PAG, = 000000,,020000
DATAI PAG, = 500100,,000002
[Dumping on DSK:CRASH.EXE[1,4]]
[Continuing system]
Example 2:
?CPU1 monitor error. Stopcode name is EUE
Job 5 on TTY1 running DDT User [1,2]
UUO is 0 at user PC 002472
CPU Status Block at 4-Oct-79 8:16:36
APRID = 000231,,342002
ERA = 600000,,040513
CONI APR, = 007760,,000003
CONI PI, = 000000,,000377
CONI PAG, = 000000,,620001
DATAI PAG, = 700100,,002255
AR ARX Data Word = 000000,,057000
IO Page Fail Word = 000000,,000000
SBUS Diags:
CNTRLR FNC 0 FNC 1
000004 007040,,040610 000200,,000000
[Dumping on DSK:CRASH.EXE[1,4]]
[Continuing system]
4
TOPS-10 Monitor Stopcodes
Example 3:
?CPU1 monitor error. Stopcode name is IEZ
File DSKE0:OPSER.LOG[1,2]
Job 1 on CTY running OPSER User [1,2]
[Dumping on DSK:CRASH.EXE[1,4]]
[Continuing system]
The following example illustrates a JOB stopcode message that is
displayed on the CTY:
%DECsystem-10 not running
?CPU0 monitor error. Stopcode name is IME
Job 1 on TTY5 running FH702 User [1,2]
UUO is 47240040770 at user PC 006477
CPU Status Block on 24-Jan-84 15:06:00
APRID = 640336,364654
ERA = 024000,,006451
CONI APR, = 007760,000001
CONI PI, = 000000,,000377
CONI PAG, = 000000,,660001
DATAI PAG, = 700100,,001340
AR ARX Data Word = 000000,,000000
IO Page Fail Word = 000000,,000000
SBUS Diags:
CNTRLR FNC 0 FNC 1
000004 001740,,017321 000200,,000000
000010 006160,,006603 000500,,001000
[Dumping on BLUI:CRASH.EXE[1,4]]
[Aborting Job]
[DECsystem-10 Continued]
The same JOB stopcode message would also appear on your terminal
(TTY)S in addition to the following message:
?Monitor error at user PC 006476
5
TOPS-10 Monitor Stopcodes
3.0 LIST OF STOPCODES
A list of stopcodes for all systems that run the TOPS-10 monitor is
presented on the following pages in alphabetical order. The list
shows the name of each stopcode, the calling module, the type of
stopcode, a phrase message (for which the name is a symbol), and a
brief explanation of the containing routine, the error that caused the
stopcode, and any data items that can be helpful in analyzing dumps.
Name Module Type Message and Explanation
28B XTCSER DEBUG DA28 Is Broken
This stopcode occurs when various error bits
get lit while talking to the DA28.
4IF FSXKON DEBUG RS04 Isn't Fancy
FSXERR, FSXECC, FSXUNL, FSXERR, and FSXECC
are stopcode-only routines. This stopcode
occurs when the FILIO module tries to perform
an RP04-only function on an RS04, for
example, an ECC error recovery or an unload.
5WE D85INT DEBUG DC75 Wrong PDP-11 Code Executing
D75III is used when the PDP-11 is recognized
as a DC75 PDP-11. This stopcode occurs when
the DC75 code version number is not what was
expected.
Data Items: T1 = version of code executing. Should have
been 1.
6DD D6SINT DEBUG Too much Direct Data
The DN60 front end has violated the DTE
queued protocol. This indicates a problem in
the front end.
6DI D6INT DEBUG Data Interrupt
The front end experienced an interrupt at the
wrong time. The DTE protocol was violated.
This indicates a problem in the front end.
6ID D6SINT DEBUG Too much Indirect Data
The DN60 front end has violated the DTE
queued protocol. This indicates a problem in
the front end.
6
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
6MS D76INT DEBUG DC76 Message Short
GTMSGH gets a word from the To-10 queue.
This stopcode occurs when the To-10 queue is
empty, but it should contain data.
6QF D76INT DEBUG DC76 Queue Full
PUTMSG queues a message to the PDP-11. This
stopcode occurs when the To-11 queue is full,
but the DC76 is neither halted nor hung.
Data Items: P1 = To-11 putter; P2 = To-11 queue
8BI D78INT JOB Blank I/O word
In converting KA10-style IOWDs to 22-bit
format, a zero IOWD was encountered.
8IN D78INT JOB Input Character Count Non-zero
The input character count was non-zero in the
window slot for the DAS78 at the beginning of
an INPUT UUO (when the PDP-11 became ready).
8NC D78INT JOB Not Enough Free Monitor Core
D78INT was unable to obtain enough monitor
free core to convert a KA10-style IOWD list
to 22-bit format.
8ON D78INT JOB Output Character Count is Not Equal to Zero
When the PDP-11 became ready during an OUT
UUO, the output character count in the window
slot was non-zero.
8PI D78INT JOB Positive IOWD
In converting from KA10-style IOWDs to 22-bit
format, a positive IOWD was encountered.
8VI D78INT DEBUG Version Incorrect
The PDP-11 on the DAS78 came up with a
version number other than one.
7
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
AAD FILFND DEBUG Access Table Already Dormant
ATNLNK unlinks an access table from a name
block (NMB) ring. This stopcode occurs when
an attempt is made to make an access table
dormant, but the table is already dormant.
Data Items: T1 = location of access table; T2 = location
of predecessor; T3 = location of next in
ring
AAO KSSER JOB Access Allowed Is Off
After paging a job, the monitor converts
virtual IOWDs into absolute IOWDs. This
stopcode occurs while checking the access
bits for a page pointed to by the IOWD, and
access to that page is not allowed.
Data Items: T1 = total number of words accumulated so
far; T2 = number of words for current page;
T3 = current page number within this segment;
T4 = next page number within this segment.
T4 is the page that was not allowed access.
ADn COMMON CPU Address Parity Error for CPU n
This stopcode occurs when Bit 29 is on in the
CONI APR. This is a serious hardware error.
Call your Field Service representative.
AES FILFND JOB Abnormal End of Search List
SLXAES is called from several places in
FILFND. This stopcode occurs for many
reasons, such as unexpectedly encountering
the end of a search list.
8
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
AHS ONCMOD HALT Already Have Structure
DMKSTR sets up structures according to tables
in ONCMOD for the DESTROY option. This
stopcode occurs when a duplicate structure
name is found in the table.
Data Items: T1 = duplicate structure name; P2 = address
of structure data block; P3 = address of
previous structure data block or DIFSTR if
this is the only structure; P4 = system
structure number of this structure
ANU FILIO DEBUG AU Not Owned By Us
UPAU obtains the Alter-UFD (AU) resource.
This stopcode occurs when there is no UFD
data block (UFB) for the given DDB or a job
requested an Alter-UFD (AU) resource that was
already owned by someone else.
Data Items: P1 = 0 if no UFB, otherwise the UFB for DDB;
P2 = not applicable if no UFB, otherwise job
number trying to release the AU resource;
UFBAUJ(P1) = job owning the AU resource
AOC FILFND DEBUG Already Own CB
GETCB gets the core block (CB) resource.
This stopcode occurs when a job requests the
CB resource, but already owns it.
Data Items: J = job number
APF VMSER DEBUG Allocated Page Free
This stopcode occurs when the monitor finds
an unallocated page of memory in the list of
pages allocated to a segment.
Data Items: P2 = disk address-1; P3 = current physical
page allocated; P4 = number of pages; T3 =
byte pointer to the map slot
AR1 ONCMOD DEBUG ASKDEC Returned CPOPJ1
CHGASL changes the active swapping list.
This stopcode occurs when the routine to
input a decimal number returns POPJ1.
9
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
ARD DTESER STOP Run Away Driver
After receiving a To-10 doorbell signaling an
indirect transfer, a check is made to make
sure that the byte count of the next part of
this indirect transfer is greater than or
equal to zero. This stopcode occurs when the
byte count is less than zero.
Data Items: T1 = current desired byte count; T2 =
negative byte count that caused the stopcode
ARF CORE1 STOP Attempt To Return Free Page
GVPAGS returns pages to the free-core list.
This stopcode occurs when the monitor checks
its table of free pages before returning a
page and finds that the page is already
marked as being free.
Data Items: T1 = first page on free-core list; T2 = page
being returned to the free-core list (this is
the page that caused the stopcode); T3 =
number of pages returned so far; T4 = bit
being tested in the page table (400000,,0);
PAGTAB(T2) = page-status bits (status-bit
definitions can be found in module S.MAC)
ARM FILFND DEBUG Access Rings Messed Up
ATNLNK unlinks an access table from a name
block ring. This stopcode occurs when an
access ring is not linked to any access
table.
AVE QUESER DEBUG Already Have EQ
AVESTP is a stopcode-only routine. This
stopcode occurs when a job has the
Enqueue/Dequeue Wait resource when it should
not have it.
Data Items: J = job number
BAA DTESER STOP Buffer Already There
T10GTC allocates a To-10 DTE buffer. This
stopcode occurs when a buffer already exists
for this DTE.
Data Items: T1 = To-10 DTE buffer-is-allocated bit
(400000,,000000); F = ETD address;
ETDBUF(F) = where DTE buffer is allocated,
bit is set when a buffer is allocated
10
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
BAC CORE1 DEBUG Bit Already Clear
SETZRS sets zeros in a table. This stopcode
occurs when the SETZRS routine attempts to
zero bits that are already zero.
Data Items: T2 = still on the stack = AOBJN pointer to
tables; T1 = number of bits to clear
BAD FILFND JOB Block Already Dormant
ATSFR0 puts an access table in the free-core
list. This stopcode occurs when an attempt
is made to make the access table dormant, but
the table is already dormant.
Data Items: T1 = location of access table
BAO FILIO DEBUG Bit Already One
TAKBLK allocates blocks from the disk. This
stopcode occurs when the monitor attempts to
allocate a block that is already allocated.
Data Items: PDL = cluster address.
BAZ FILIO DEBUG Bit Already Zero
GIVBLK returns disk blocks. This stopcode
occurs when the monitor attempts to return
blocks that are already free; this occurs
when a damaged file is deleted. If this
stopcode occurs with any frequency, it is
suggest you run DSKRAT on the structure
indicated in the stopcode macro printout on
the CTY.
BBS D85INT STOP Bad Byte Size
DLBP makes the DL10 the byte pointer for
data. This stopcode occurs when the number
of bytes per word supplied is illegal. The
number of bytes per word must be from 2 to 6.
Data Items: T4 = wrong byte size
11
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
BDN DTESER STOP Bad Device Number
GTETDS sets up a DTE control block address
and places it in AC F. It is called with F =
CPU#,,DTE#. This stopcode occurs when either
the CPU number or the DTE number is not in
range.
Data Items: T1 = 0 if caller tried to call this routine
with -1 as the DTE number; T1 = illegal CPU
number if that was the reason for the
stopcode; T3 = illegal DTE number if that
was the cause of the stopcode; CPUN = legal
number of CPUs; C0DTN(CPU OFFSET) = legal
number of DTEs; F = CPU#,,DTE#
BFC D60SER DEBUG Bad Function Code
The front end controller received a bad
function code. This is a monitor error.
BFO TAPUUO DEBUG Better Find One
INVERT generates a transfer list for a read
backwards. This stopcode occurs when the end
of the original transfer list for a read
backwards is not found.
Data Items: T2 = head of old transfer list; T3 = item
number to find
BIN FILIO STOP Block Number is Negative
MONRED reads a block or a series of blocks.
This stopcode occurs when this routine is
called with a negative block number.
Data Items: T1 = IOWD for data; T2 = block number
BMB DTESER DEBUG Bad Message Block Pointer
The address of the message passed to DTESER
to output to the -11 was zero.
BMR FILUUO JOB Block Missing from RIB
ALLP0A is used to work with a RIB whose
blocks are allocated but not used. This
stopcode occurs when the RIB for a file shows
that the file has more blocks than actually
exist.
Data Items: T3 = missing block
12
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
BNF COMMON HALT BOOTS Not Found
BOOT-11 was not found on the specified
device, nor was it found in blocks 4-7 of any
other structure. BNR FILUUO JOB Block Not
RIB
NOTOLD creates a new name in a directory
block. This stopcode occurs when a pointer
to a block is not found in the RIB.
Data Items: P2 = block that is being looked for
BNT FILFND DEBUG Block Not There
UFORSS gets a UFD or an SFD access block.
This stopcode occurs when a core block (AT or
UFB) that is known to exist is not found.
BNZ CORE1 DEBUG Bit Not Zero
CSETOS sets bits in a table. This stopcode
occurs when one of the bits to be set in a
table is already set.
Data Items: T3 = number of bits to set; T4 =
address,,position
BPE CLOCK1 JOB Breakpoint PC EXEC Mode
The user PC on a control-D to a DDT
unsolicited breakpoint trap did not have the
USRMOD bit, although the user was supposed to
be in user mode.
Data Items: T1 = PC word that the user is currently
running
BPF CLOCK1 JOB Breakpoint PUTWRD failed
The attempt to store the return PC (in
processing an unsolicited ^D breakpoint) into
the location pointed to by .JBBPT failed even
though the address had been previously
address checked.
BPT FILFND JOB Bad Search List Pointer
SLXBPT is used only for this stopcode and is
called from FILUUO. This stopcode occurs
when an attempt is made to build the search
list, but no search list can be found.
13
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
BRC COMCON DEBUG Bad Return from CMPBIT
SAVEXE saves a virtual memory system core
image. This stopcode occurs when the routine
that computes the flag bits for a directory
entry gives an error return.
BSN SEGCON STOP Bad Segment Number
COMIT compares the job number with the right
half of JBTSGN(T1). This stopcode occurs
when the right half of J and the right half
of JBTSGN(T1) are not the same.
Data Items: T1 = high-segment number of job; J = job
number
BSY XTCSER DEBUG DA28 Busy
The BUSY bit was (still) on when the DA28
interrupted.
BTC DTESER DEBUG Bad Transfer Count(s)
The message from the DTE specified a transfer
size greater than the message size.
Data Items: T2 = Transfer size; T1 = Message size
BWA FILIO JOB Block Went Away
SETLST sets up an I/O list block. This
stopcode occurs when NXTBLK, which is used to
return the next block address, gives an error
or a non-skip return that indicates
end-of-file, writing in the middle of a file,
or other similar error.
Data Items: J = job number
CAL DTESER DEBUG CALUSR Called by Wrong User
Routine CALUSR in DTESER calls a service
routine based on the current user (NOBODY,
ANF, DECnet, and so forth) of the DTE. This
stopcode occurs for those users that should
not be going through CALUSR.
14
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
CAO FILUUO DEBUG Cluster Address Odd
ADJALC allocates the initial blocks for a
file. This stopcode occurs when a block
supercluster address is not an even multiple
of a block cluster address.
Data Items: T1 = number of blocks in group; P2 =
remainder
CAS REFSTR HALT Couldn't Allocate Space
This stopcode is always preceded by one of
the following messages, which explains why
space could not be allocated:
Bad block in HOME.SYS space.
File structure full, suggest reducing
swapping space.
CBB COMCON DEBUG Command Block Bad
In copying the program-to-run information
from a user defined command block to the
SAVGET locations, it was found that the
command block was too big to fit.
CDn COMMON CPU Cache Directory Parity Error, CPU n
This is a serious hardware error. Call your
Field Service representative.
CDA FILIO DEBUG In-Core Copy Doesn't Agree
DD2MN copies pointers from a DDB to a monitor
buffer to perform monitor I/O. This stopcode
occurs when the cluster pointer from the
structure data block does not agree with the
in-core copy.
Data Items: T1 = in-core copy; T4 = pointer from
structure data block
CDD MSGSER DEBUG Can't Disconnect Device
This stopcode occurs when a release call on
MPX fails because the disconnect format is
invalid or the device is not connected.
CFP CLOCK1 JOB Can't Find PDB
SETRUN sets the job-status run bit. This
stopcode occurs when there is no process data
block (PDB) for this job.
Data Items: J = job number
15
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
CGS ONCMOD HALT Couldn't Get Structure Data Block
DMKSTR sets up structures according to tables
in ONCMOD in the DESTROY option. This
stopcode occurs when the maximum number of
structures is exceeded.
Data Items: .FSMAX = maximum number of structures
allowed; T1 = structure name; P3 = address
of last structure data block; P4 = system
structure number for this structure.
CI7 UUOCON DEBUG CI7 Continuable Snapshot Dump
A user requested continuable snapshot dump
was requested (CONFIG program SNAPSHOT
command. See TOPS-10 Operator's Guide.)
CIB CLOCK1 CPU CPU Interlocks Broken
APRSUB services common APR interrupts. This
stopcode occurs when the CPU interlock has
been modified. Typically, the stopcode
occurs while trying to continue a CPU that
has stopped due to a fatal error.
Data Items: .CPNBI = CPU interlock that was modified
CIF FHXKON DEBUG RC10 Isn't Fancy
This stopcode occurs when the monitor
attempts an RP04-only function on an
RC10-controlled device.
CIO REFSTR DEBUG CPF Is Odd
COMCFP computes a CFP. This stopcode occurs
when the number of blocks per supercluster is
not a multiple of the number of blocks per
cluster.
CL0 SCANSER STOP Chunk Links to 0
DELCHR deletes characters from the user's
input buffers when he presses the RUBOUT or
DELETE key. This stopcode occurs when a TTY
chunk has a backward link to 0.
Data Items: T2 = current chunk
16
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
CMD UUOCON DEBUG Can't Move Data
In reading/writing from/to the swapping
space, the JOBPEK UUO was unable to transfer
data between the caller's funny space and the
caller's specified arguments.
CME FILFND DEBUG CFP Modulo Error
SETCFP computes a CFP. This stopcode occurs
when CFP does not start at an even
supercluster boundary.
Data Items: T2 = supercluster address relative to block 0
of unit; T3 = remainder
CMP LOKCON STOP Can't Move Page
In attempting to move pages out of a block of
memory that is being set off-line, routine
PAGFRE discovered that the free page into
which we were trying to move a page was not
really free.
Data Items: P2 = target (free) page
CMS VMSER DEBUG CORE1 Must Skip
SEGCON returns core allocated to a
nonsharable high segment. This stopcode
occurs when CORE1 gives a nonskip return when
asked for core in use.
CMU SEGCON DEBUG Core Messed Up
CHKTAL compares CORTAL with CORTAB. This
stopcode occurs when the core usage tables
are inconsistent.
Data Items: U = free+idle+dormant; CORTAL = bit table
CNA SCHED1 STOP Core Not Available
SWAPI swaps in a job or high segment. This
stopcode occurs when an error return is given
by the core-allocation routine (CORGET),
which indicates that no core is available,
although it has already been verified that
enough core is available.
Data Items: J = job number
17
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
CNE FILUUO DEBUG Cluster Not Even
ADJALC allocates the initial blocks for a
file. This stopcode occurs when the block
computed as the start of a supercluster does
not begin at an even supercluster address.
Data Items: T2 = starting block number
COW DTESER STOP Called for Output on Wrong CPU
DTESER was called to output data to a DTE
that existed on some CPU other than the one
on which DTESER was currently running.
CRH REFSTR DEBUG Cannot Read Home Blocks
REFSTR refreshes a file structure. This
stopcode occurs when the routine used to read
home blocks (GTHOM) gives an error return.
CSA COMCON DEBUG Couldn't Set Access Allowed
SETAA sets the access-allowed bit for a page.
This stopcode occurs when the PAGE monitor
call function to set access allowed fails.
CSE FILIO STOP Checksum Error
CHKSUM computes a folded checksum from the
first data word. This stopcode occurs when
the pointer for checksumming points to a word
that is not in the user's address space.
Data Items: RH(M) = address that caused the error; J =
job number
CSP SEGCON JOB Cannot Store Path
STONAM is used during SAVE, GET, R, and RUN
commands to search a path. This stopcode
occurs when there is not enough free core to
store the full path specification.
Data Items: T2 = number of words available
CU0 NETDEV STOP Can't Use Zero Dispatch
This stopcode occurs when an attempt is made
to use a zero dispatch in the SCNSER dispatch
table. A zero dispatch is illegal.
18
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
CWN NETSER DEBUG Core Allocation Went Negative
GIVZWD returns monitor free core. This
stopcode occurs when GIVZWD attempts to
return more free core than it has.
Data Items: core allocation count; -1(P) = number of
words returned
D36 D36COM STOP DECnet Non-recoverable Stopcode
This is a catch-all DECnet stopcode called
when DECnet encounters a non-recoverable
condition. There is an additional DECnet
sub-stopcode printed out on the CTY in
conjunction with the D36 stopcode. Refer to
Appendix A for further information.
DBZ FILIO DEBUG DEPLPC Bit Zero
USETO0 does a USETO. This stopcode occurs
when the last group of pointers for a file is
not the last group in the RIB; there should
be more file pointers.
Data Items: W = last block allocated; T3 = last pointer
in core flag
DCN D36COM DEBUG DECnet Recoverable Stopcode
This is a stopcode-only routine called by
DECnet when a recoverable condition occurs.
There are many kinds of DCN stopcodes; an
additional DECnet sub-stopcode is output with
the CTY output. Refer to Appendix A for
further information.
DCR FILUUO DEBUG DELRIB CPOPJ Return
CLSDL1 deletes a file. This stopcode occurs
when DELRIB does not skip, even though it
should always give a skip return.
DDS FILUUO DEBUG DELRIB Didn't Skip
BADUFD deletes a file. This stopcode occurs
when DELRIB does not skip, even though it
should always give a skip return.
19
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
DER FILUUO DEBUG DELRIB Error Return
CLSFUL is used when there is no space on a
structure or all pointer slots are taken.
This stopcode occurs when DELRIB does not
skip, even though it should always give a
skip return.
DFU COMNET DEBUG Device Unrecognized
DSPOBJ dispatches on the object type. This
stopcode occurs when the specified device is
not on the network.
Data Items: T4 = object type; DEVCHR(F) = device
characteristics
DHA FILIO DEBUG Don't Have AU Resource
DWNAU releases the Alter-UFD resource. This
stopcode occurs when this file attempts to
return the AU resource when it does not own
it.
Data Items: S = should have had IOSAW(200000) set
DHD FILIO DEBUG Don't Have DA
DWNDA returns the DISK ALLOCATION queue.
This stopcode occurs when this file does not
own the DA resource.
Data Items: PJOBN = job number
DND FILIO DEBUG Drive Not Dual Ported
UUOPWZ executes a CALLI for a disk channel.
This stopcode occurs when the drive is not
dual ported.
DNE DTESER STOP Data Count Not Even
DTMHED sets up a 16-bit byte pointer to point
to the first word of a message. It is called
with an 8-bit byte count in T2. This
stopcode occurs when a caller calls this
routine with an odd byte count.
Data Items: T2 = odd byte count that caused the stopcode
20
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
DNF FILUUO DEBUG DDB Not Found
CLRDDB clears a disk data block (DDB). This
stopcode occurs when an attempt is made to
return a DDB, but no predecessor DDB is
found.
Data Items: F = location of DDB
DNH DTESER STOP Driver Not Hungry
DTEXD1 is entered when the driver thinks that
there are no more indirect packets left, but
the byte count is different.
Data Items: T1 = number of bytes left
DNL QUESER DEBUG DEQ Not Interlocked
DEQIT dequeues one Q-entry. This stopcode
occurs when the job does not own the DQ
interlock.
Data Items: J = job number
DNR FILUUO DEBUG DELRIB Non-Skip Return
SETEN5 is used when the RIB is set up to
insert constant values and write them out.
This stopcode occurs when DELRIB does not
skip, even though it should always give a
skip return.
DNS FILUUO DEBUG DELRIB Non-Skip Return
CLOSR2 is called by CLRSTS when a rename is
in progress at the time of a delete. This
stopcode occurs when DELRIB does not skip,
even though it should always give a skip
return.
DOC FILFND DEBUG Don't Own CB
GVCBJ returns the CB resource for a job.
This stopcode occurs if GVCBJ is called, but
the job does not own the CB resource.
21
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
DOM CORE1 STOP Don't Own MM Resource
On a multiprocessor KL, the processor that
wishes to manipulate pages in memory must own
the memory-management resource before it can
do so. This stopcode occurs when a processor
tries to manipulate memory pages and does not
own the memory-management resource. This
resource can also be owned by a job.
Data Items: J = the serial number of the CPU that owns
the MM resource (if owned by a CPU); J = the
number of the job that is trying to
manipulate pages without owning the MM
resource (if owned by a job). MMUSER is the
job that owns the MM resource.
DPL COMCON DEBUG Directory Page Lost
GTSAVP reads in a page that was output
earlier. This stopcode occurs either when
the page already exists or when an I/O error
occurs.
DPN COMCON DEBUG Directory Page Nonexistent
RELDIR gets rid of the directory page and
restores any pages that were written out
earlier, after it creates the directory.
This stopcode occurs when a PAGE. monitor
call with a function of 1 fails.
DQR DZINT DEBUG Illegal Queue Routine
The address of the routine to transfer to on
dataset timeout for a DZ-11 line was zero.
DRN NETDEV STOP Data Request Went Negative
MCXDAT packages characters into a data
message. This stopcode occurs when the
data-request count becomes negative after
being decremented.
22
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
DSS VMSER DEBUG DLTSP Skipped
CLRSPG clears spy pages from a user's map
when called by GETMIN. This stopcode occurs
when CLRSPG cannot clear a spy page.
Data Items: T1 = user virtual page number of page
DTE DTESER STOP Generic DTE stopcode
This is a catch-all stopcode in DTESER.
Examine the stack.
DWA DTESER DEBUG DDB Went Away
ZAPDTE is called to remove a DTE DDB from the
DDB chain. This stopcode occurs if ZAPDTE
cannot find the specified DTE.
Data Items: F = address of DTE DDB we were trying to
remove
DWC DTESER DEBUG DTECLR Called on Wrong CPU
DTECLR was called to clear a DTE, but the DTE
was not on the CPU on which DTECLR was
executing.
EFI DTESER STOP Eleven Function Illegal
DTEQUE places an entry into a DTE's To-11
queue. This stopcode occurs when the To-11
that called this routine is either out of
range or illegal for the direction of
transfer.
Data Items: P2 = function code that caused the error
EPO ERRCON DEBUG Executive PDL Overflow
APRPDL handles PI 7 clock interrupts with the
pushdown list (PDL) or bit set. This
stopcode occurs when there is a PDL overflow
in the exec.
Data Items: S = APR error condition
ERB REFSTR DEBUG Error Reading BAT Block
REDBAT reads in BAT blocks and returns a new
unit pointer. This stopcode occurs when an
error is encountered while reading.
Data Items: U = address of current unit
23
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
ERD ONCMOD DEBUG Error Refreshing Disk
WUNSTR refreshes a structure. This stopcode
occurs when an I/O error is encountered while
refreshing.
ERF TAPSER STOP Error Recovery Procedure Fouled Up
ERPINT is used when an interrupt is received
while error recovery is in progress. This
stopcode occurs when a pointer that should be
pointing at an I/O request block is pointing
elsewhere.
Data Items: T1 = bad pointer; TKBERB(W) = good pointer
ERH REFSTR DEBUG Error Reading HOME.SYS
This stopcode occurs when the refresher
cannot read the home blocks. (See stopcode
CRH.)
ERM ONCMOD DEBUG Error Reading MFD
SPTSSB creates the SPT table and the swapping
SAT table for a disk unit. This stopcode
occurs when an I/O error occurs while reading
the MFD read-in block.
Data Items: P1 = address of first word of MFD RIB (RH);
T2 = logical block number to read; U = unit
data block address; F = file data block
address; S = (RH) standard error bits
ERP REFSTR HALT Extraneous Retrieval Pointer
HOMRBS stores a retrieval pointer in the
HOME.SYS read-in block. This stopcode occurs
when the byte pointer is confused.
Data Items: T1 = current byte pointer
ERS ONCMOD DEBUG Error Reading SAT
FILMAN finds and sets up all of the
structures on the system. This stopcode
occurs when I/O takes place while reading the
SAT.SYS read-in block for a structure.
Data Items: S = error bits
24
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
ESS FILFND JOB Empty System Search List
SLXESS is a stopcode-only routine and is
called throughout FILFND. Examine the stack
for the location.
EUE ERRCON DEBUG Executive UUO Error
EMUERR warns about monitor calls that are no
longer implemented. This stopcode occurs
when the monitor tries to execute one of
these de-implemented monitor calls.
EWB REFSTR DEBUG Error Writing Block
BLKWRT writes out a block. This stopcode
occurs when the subroutine to do the actual
writing of the block, OWNWRT, gives an error
return that indicates an I/O error.
Data Items: DEVMBF(F) = IOWD; T2 = logical block number;
U = address of unit
EWH REFSTR DEBUG Error Writing Home Block
HOMUPD updates the home blocks. This
stopcode occurs when the subroutine used to
do the physical I/O (WRTRUN) gives an error
return.
Data Items: T2 = list of items to be written; S =
standard error bits
EWR ONCMOD DEBUG Error While Refreshing
RFRES2 refreshes a structure during the
DESTROY option. This stopcode occurs when an
I/O error is encountered during the refresh.
Data Items: S = error bits
FAD FILUUO DEBUG File Already Dormant
CLRSTG is used during a CLOSE monitor call to
do general clean-up tasks. This stopcode
occurs when the access-table entry for this
file is mistakenly marked dormant.
Data Items: ACCDOR(T1) = access-table entry for this file
25
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
FDP FILIO DEBUG Fixed-Head Device Position
FREINT handles unsolicited interrupt from a
device. This stopcode occurs when a
position-done interrupt occurs for a
fixed-head device. This may indicate a
hardware problem.
Data Items: KONPOS(J) = unit positioning flag
FEM ERRCON HALT Fatal Error in Monitor
PARHALT halts a CPU when there is a serious
error in the monitor.
FFU NETSER STOP F Fouled Up
NETHIB puts a network job in the HIBER state.
This stopcode occurs when NETHIB is called
with F = 0.
FIP VMSER DEBUG Free-Page in Use
This stopcode occurs when the monitor finds
an allocated page in its list of unallocated
pages.
FLE SCNSER STOP Free List Empty
GETCHK fetches chunks from the SCNSER
free-chunk chain. This stopcode occurs when
the pointer to the first chunk (TTFTAK) is
zero.
FNG DTESER STOP Function No Good
EATMSG throws away messages from the -11 for
unknown devices. This stopcode occurs when
the function sent by the -11 is illegal.
Data Items: P2 = illegal function code
FON VMSER STOP Funny Address Overlaps Next
GVFWDS returns words acquired by GTFWDC or
GTFWDU. This stopcode occurs when the size
of the current chunk plus the the address of
the current chunk overlaps the first word of
the next chunk.
Data Items: T1 = words to return; T2 = address
26
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
FOP VMSER STOP Funny Address Overlaps Previous
GVFWDS returns words acquired by GTFWDS or
GTFWDU. This stopcode occurs when the first
word of the funny address is in the previous
chunk.
Data Items: T1 = words to return; T2 = address
FPE VMSER DEBUG Funny Page Must Exist
GVFWDS returns words acquired by GTFWDS or
GTFWDU. This stopcode occurs when the
monitor tries to get a page map entry, but no
funny page exists from which to get the page
map entry.
Data Items: T1 = words to return; T2 = address
FPF LOKCON STOP PAGFRE Free Page Not Free
PAGFRE checks to see if the target page is on
the free-core list and, if so, exchanges it
with the current page. This stopcode occurs
when a page on the free-core list is not
marked as being free (Bit 0 = 1).
Data Items: T1 = current page location of job; T2 = page
on the free-core list that was not marked as
free (this is the page that caused the
stopcode); P2 = target page
FPI CORE1 STOP GTPAGS Free Page In Use
This stopcode occurs when the monitor tries
to get a page from the free-core list, but
reaches the end of the free-core list before
finding a free page.
Data Items: T1 = first page added to or taken from the
free-core list; T2 = negative number of
pages to add or take from the free-core list
FPN LOKCON STOP SETMFL Free Page Not Found
SETMFL moves monitor pages when its current
pages are being set off line. This stopcode
occurs when the target page is not found on
the free-core list.
Data Items: T1 = current page (being set off line); P2 =
target page (this is the page that caused the
stopcode)
27
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
HBE REFSTR DEBUG Home Block Read Error
HOMUPD updates the home blocks. This
stopcode occurs when the subroutine to read
in the current home blocks from disk (GTHOM)
gives an error return, which indicates an I/O
error.
Data Items: S = standard error bits
HIF FILIO DEBUG Hole In File
USETO0 is used to do a USETO. This stopcode
occurs when the last block of the file
exists, but some preceding block does not.
HNF ONCE HALT High Seg Not Found
ONCE could not find the monitor.
HWU FILIO JOB Hardware Wrong Unit
POSERC is used during disk error recovery.
This stopcode occurs when the wrong unit on a
disk controller interrupts. This is a
hardware problem.
Data Items: P2 = error bits; T1 = retry count
I1S DTESER DEBUG Illegal TO-11 DONE State for QP2
DTESER received a TO-11 DONE interrupt, but
the state specified by the -11 was not legal
for queued protocol 2.
IBA DTESER DEBUG Input Buffer Already Allocated
When DTESER went to start up I/O on a DTE, it
found a buffer already allocated in the ETD
block.
IBI CLOCK1 JOB Intercept Block Illegal
ESTOP stops the user on an error and flags it
as an error stop. This stopcode occurs when
the user-defined intercept block is illegal
for some reason.
28
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
IBZ FILIO JOB I/O to Block Zero
UUOPWR performs CALLIs for a disk channel.
This stopcode occurs when Block 0 is
requested, but the file is not HOME.SYS[1,4]
or the drive is not an RP04. An RP04 reads
block 0 to check for format errors.
Data Items: T1 = PPN; T2 = file name
ICL UUOCON JOB Illegal Channel Number
JDAADR returns the address of a channel in
USRJDA or the extended channel table in T1.
This stopcode occurs when the channel number
is greater than the maximum number allowed.
Data Items: T2 = channel number; HIGHXC# = maximum
ICN SEGCON DEBUG In-Core Count Negative
DECCNT decrements the high-segment in-core
count for a job that has a very high segment,
which must be in core. This stopcode occurs
when the count of the number of jobs in core
sharing a high segment becomes negative.
Data Items: J = job number; JBTSTS(J) = in-core count,
which should be zero now
IDC ONCMOD HALT Impossible Drum Condition
DRMHLT checks for a unit on line and write
protected. This stopcode occurs because a
drum can never give an on-line condition.
IDS DTESER DEBUG Illegal To-10 DONE State
DTESER received a To-10 DONE interrupt with
an illegal state specified by the -11.
29
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
IEZ KLSER DEBUG IOWD Equals Zero
After paging a job, the monitor attempted to
convert virtual IOWDs to absolute IOWDs.
This stopcode occurs when this routine is
called with an IOWD of zero.
Data Items: T2 = IOWD; P3 = location of channel data
block; P4 = frame count,,characters/word if
DX10 channel
IFI TAPSER STOP Illegal Function at Interrupt
TAPIFI is a general interrupt error halt. In
one case, for example, the monitor found an
illegal function in an I/O request block
while at interrupt level. Examine the stack
for the specific error address.
IIP FILIO STOP I/O In Progress - Error
MONIO reads a block or series of blocks from
the disk. This stopcode occurs when the
monitor attempts to start I/O for a DDB that
already has I/O active.
Data Items: S = status bits; T1 = IOWD for data; T2 =
block number
IKF DTESER DEBUG Illegal Kontroller Function
DTESER was requested to put the DTE into
maintenance mode, which is illegal.
IME KLSER JOB Illegal Memory Reference from Executive
This stopcode occurs when there is a page
fault while in exec mode that is not an
address break.
Data Items: .CPAPC = page fault PC; .CPPFW = page fault
word
IOP COMMON CPU I/O Page Failure
There is a serious hardware failure. Call
your Field Service representative.
30
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
IPA DTESER STOP Illegal Post Address
DTEXDI handles a To-10 done interrupt on an
indirect transfer. This stopcode occurs when
this routine is called before a To-10 post
address has been set up. The post address
should have been set up by the driver at the
time that the direct portion of that message
was received.
Data Items: T1 = To-10 DTE state; ED.DTN(F) = DTE
number; F = ETD address
IPC KLSER CPU Illegal Page Failure Trap Code
SEILM processes page failure traps. This
stopcode occurs when the trap code returned
by the pager after getting a page fail trap
is not in the range 0 through 23 or 25.
Data Items: T1 = page fail code; .CPTCX = page trap
context; .CPTPI = PI state
IPF VMSER DEBUG In-Use Page Free
SCNPT scans the page table. This stopcode
occurs when SCNPT finds a page on the
free-core list that is listed in the page
table as allocated.
IPM VMSER DEBUG Illegal Pointer in MEMTAB
This stopcode occurs when the monitor finds
an inconsistency in the swapping data base.
IPN VMSER DEBUG IPCF Page Nonexistent
GVIPCP returns IPCF pages to the free-core
list. This stopcode occurs when GVIPCP swaps
out IPCF pages that are not in the swap list.
IPU LOKCON STOP IPCF Page Unowned
In attempting to swap out an IPCF page,
LOKCON was unable to find a job that
contained the IPCF page in its queue.
ITM DTESER DEBUG Illegal To-10 Transfer Mode in QP2
DTESER received a To-10 interrupt in queued
protocol 2 which specified a mode other than
byte mode.
31
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
ITS DTESER DEBUG Illegal To-10 Transfer State
DTESER received a To-10 interrupt which
specified an illegal state.
IUN FILUUO DEBUG Invalid Unit Number
ERRFIN finishes a CLOSE when an error
occurred. This stopcode occurs when the unit
number for the UFD is illegal.
Data Items: UN1PTR = pointer to number in structure of
the unit; T1 = unit of UFD
JAC UUOCON DEBUG Job Data Area Clobbered
IOALL does I/O for all devices assigned to a
job. This stopcode occurs when the highest
channel number in use is greater than 17.
Data Items: T2 = highest channel in use
JDJ ONCMOD DEBUG JFFO Didn't Jump
CMPLOG computes the SIXBIT logical unit
number within a structure. This stopcode
occurs after a call to subroutine MSKUNI,
which sets up a search mask for a unit name,
and it returns no mask for the unit name
given.
Data Items: P2 = unit number; STRNAM(P2) = unit name;
T2 = should have been the complement of the
search mask
JIT SYSINI HALT Job In Transit
LOKINI initializes LOKCON on location 140
restarts, unlocks all jobs, and frees up the
core they occupy. This stopcode occurs when
a job is locked and is being moved.
Data Items: J = job number
32
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
JNC FILIO DEBUG Job Not in Core
ADRINT checks that a job is in core, possibly
at interrupt level. This stopcode occurs
when the job is not in core.
Data Items: T1 = job number
JNE CLOCK1 STOP JBTADR not equal to CORTAL
In cross-checking JBTADR and CORTAL a
mismatch was found.
Data Items: P3 = amount of free-core specified by the sum
of JBTADR entries
KAF COMMON CPU Keep-Alive Failure
This routine/stopcode is executed because the
console front end detected that the KL did
not update the keep-alive counter. This
stopcode occurs when the front end executes a
JRST 71.
KCP RNXKON DEBUG KDB Command in Progress
CMDWAT waits for a command to complete and
calls RNXINR to process it before starting a
new command.
KDS DPXKON DEBUG KONEC2 Didn't Skip
POSINT handles positioning interrupts. This
stopcode occurs when the subroutine KONEC2
does not skip, even though it should always
give a skip return.
KID SYSINI HALT Kontroller Is Down
DSKINI, which is called on location 140 and
143 starts and restarts, initializes the
disk. This stopcode occurs when a controller
goes off-line during disk initialization.
Data Items: J = kontroller
33
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
KNF XTCSER STOP Kontroller Not Free
XTCSER received a remote interrupt request,
the the kontroller was not free.
KNM TX1KON DEBUG Kontroller Not Mapped
In attempt to uncache a DX10 KDB we found the
KDB was not in the EPMP.
KSW TAPSER DEBUG Kontroller Status Wrong
TAPSIO is used when the upper level wants to
start I/O. This stopcode occurs when the
tape-controller status is wrong.
Data Items: TKBSTS(W) = status
LN1 ERRCON STOP Line Not Found
EXCALP prints a monitor call PC message for a
job. This stopcode occurs when no terminals
a log line can be found for the job that is
causing the error.
LND FILUUO DEBUG Logical Name Not Found
LNMSTP consists of only the stopcode and its
recovery. LNMSTP is called when the monitor
could not set up the definition of LIB that
was present before an ENTER UUO that could
not find a file.
LNF QUESER DEBUG Lock Not Found
REDTB fills a user table with data from the
LOCK-associated table. This stopcode occurs
when the system cannot find the LOCK block.
34
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
LNP FILIO DEBUG Last Pointer Not a Pointer
OUTGRP allocates more space for an output
file. This stopcode occurs when an
allocation is made, but a RIB error occurred;
or when the monitor tried to deallocate the
space, but the RIB pointer was invalid.
Data Items: T2 = pointer
LNS SCNSER STOP Line Not Set Up
TSETBI clears the input and output buffers
for a line. This stopcode occurs when this
routine is called before the line is set up.
LNT ERRCON STOP Line Not There
HALTI prints the "Halt at ..." message and
stops the job. This stopcode occurs when
there is no controlling terminal line
associated with the job.
LPU FILUUO JOB Last Pointer Unit-Change
ALLP0B writes the redundant RIB in the last
block of the RIB. This stopcode occurs when
the RIB pointer is decoded as a unit-change
pointer.
Data Items: T2 = pointer
MCM METCON DEBUG Meter Channel Data Block Missing
RELCHN releases a channel. This stopcode
occurs when an attempt is made to release a
meter channel data block (MCDB) that is not
there.
Data Items: T2 = predecessor MCDB (if any)
MCN FILFND DEBUG Mount Count Negative
SLSR6 documents the mount count when the
search list is modified. This stopcode
occurs when the mount count for a structure
becomes negative.
Data Items: STRMNT(T3) = mount count
35
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
MDM DTESER STOP Master DTE Missing
DTEINI is called to initialize all the DTEs
on a given CPU. This stopcode occurs after
all of the DTEs have been initialized, when
none is found in privilege mode.
MIW ONCE STOP Memory Interleaving is Wrong
BYPSYM finds the top of core and moves the
symbol table up. This stopcode occurs when
there is a memory interleaving error in that
some words within a page exist and some do
not. The operator must correct the problem.
MIZ VMSER DEBUG MEMTAB Is Zero
This stopcode occurs when the monitor finds
an inconsistency in the swapping data base.
MMR LOKCON STOP Moving Monitor Page Not Required
SETMFL sets memory pages off line. This
stopcode occurs when the memory location
labeled MOFLPG indicates that monitor pages
must be moved, but none of the page's PAGTAB
entries has the monitor code bit set.
Data Items: MOFLPG = number of monitor pages that were to
be moved; LOKREL = number of pages, first
page number to set off line
MNA FILIO JOB Monitor Buffer Not Available
GTMNBF gets a monitor buffer. This stopcode
occurs when there is no buffer space
available.
Data Items: T2 = number of words requested
MNM SYSINI STOP Monitor in Nonexistent Memory
KIINI initializes a KI10, KL10, or KS10.
This stopcode occurs when a page is found to
be nonexistent and the page is not free.
Therefore, the monitor already has the page
in question.
Data Items: T3 = page number
MNR ERRCON HALT Master -11 Not Running
DIE recovers/reloads after an internal system
error. This stopcode occurs when the -11
with a DTE in privilege mode is not running.
36
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
MPN LOKCON STOP Monitor Page Not Found
SETMFL sets monitor pages off line. This
stopcode occurs when the source page cannot
be found in the monitor.
Data Items: P3 = monitor source page
MXM MSGSER DEBUG MPX DDB Missing
This stopcode occurs when a pointer in the
DDB chain does not point to a multiplexd DDB.
N4C CPNSER JOB Not 4 Cached Pages
FIXOTB fixes up OUCHTB when turning off the
cache for some page so that OUCHE references
through four cached pages. This stopcode
occurs when four cached pages cannot be
found.
Data Items: P3 = page for which cache is being turned off
NAP FILUUO JOB Not Address Pointer
UFDNXT initializes the next block for the
directory. This stopcode occurs when the new
pointer is decoded as other than an address
pointer.
Data Items: P1 = location is monitor buffer; T2 = bad
pointer
NCA CLOCK1 STOP No Core Assigned
NULADR restores the software state and then
the hardware state of the new job to be run.
This stopcode occurs when the job to be run
has no core assigned to it.
Data Items: J = job number
NCC LOKCON STOP Not Enough Contiguous Free Core
Certain types of monitor pages must be kept
contiguous. This stopcode occurs when LOKCON
does not have enough contiguous space to lock
jobs after memory has been set off-line.
NCE UUOCON DEBUG No Command Slot Available
This stopcode occurs when attempting to
insert a user-defined command. The condition
should have been caught earlier.
37
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
NCM IPCSER JOB No Core For Message
SETQSR sets up IPCF packets to send to
QUASAR. This stopcode occurs when no core is
available to build the message.
NDJ SCNSER DEBUG No DDB For Job
TTYFND finds a terminal number for the job in
AC J. This stopcode occurs when no device
data block can be found for this job's
terminal.
Data Items: J = job number
NDL COMNET STOP No DECnet Loaded
This stopcode occurs if any DECnet-only
routines are called, but DECnet is not
assembled into the monitor.
NDP CLOCK1 JOB Not DDB Pointer
WSYNC waits until the current buffer activity
is complete. This stopcode occurs when this
routine is called with other than a DDB
pointer in F.
Data Items: F = the supposed DDB pointer
NDS CLOCK1 STOP Null Job Did SAVGET
MONSTR sets up ACs for a monitor job that
starts at monitor call level. This stopcode
occurs when the job number is 0.
NEM LP2SER JOB No Exec Virtual Memory
DVLRAM loads the RAM or VFU with data from
the user. This stopcode occurs when DVLRAM
tries to map the user virtual address into
exec virtual memory, but there is none.
Data Items: F = DDB; T1 = function
NER FILUUO DEBUG No Extended RIB
CLSO2A looks for the last written block in
the next RIB. This stopcode occurs when the
pointer for the last block of a file is not
in the RIB, and there is no extended RIB;
the pointer is lost.
38
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
NEV UUOCON STOP No Executive Virtual Memory
NEWBUF sets up a byte pointer and item count
for I/O. This stopcode occurs when the DDB
does not have executive virtual memory.
Data Items: T1 = input buffer header address
NFB FEDSER STOP No Front-End Device Block
FDIGET gets the front-end device (FED)
address in F. This stopcode occurs when no
device data block is found for this front
end.
Data Items: T1 = FED unit number (also on this stack)
NFC DTESER STOP No Free Core
DTERNG handles a To-10 doorbell. This
stopcode occurs when the monitor tries to
allocate a To-10 buffer and none is
available.
Data Items: T2 = largest amount of core available (36-bit
words); ED.BSZ = amount of 36-bit words
needed (ED.BSZ is located in EDTBUF(F) in
Bits 1 through 17); F = ETD address
NFD RPXKON DEBUG No Front-End Drive
DAVIN1 starts an operation on a drive that is
busy on the other port. This stopcode occurs
when DAVIN1 cannot find the drive number.
NFS VMSER DEBUG No First Slot
This stopcode occurs when, at the start of a
fragment, the first physical page of the
fragment is not found in the page map.
NFU SYSINI DEBUG No First Unit
DSKINI initializes a disk on a location 140
start or restart. This stopcode occurs when
the first unit in the system search list
cannot be found.
Data Items: SYSUNI = should have been the pointer to the
first unit. (LH)
39
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
NIF RNXKON DEBUG RNXKON Isn't Fancy
This stopcode occurs if the monitor tried to
unload an RP20 or read/write 10/11
compatability mode on an RP20.
NIS DTESER STOP DTE Not in Indirect State
DTEXDI is entered on an indirect message
transfer. This stopcode occurs when an
indirect transfer is received, but the
monitor is not expecting one.
Data Items: T1 = To-10 DTE state word (the state word
breaks down as follows); T1 = 0 (To-10
idle); T1 = 1 (waiting for To-10 done for a
direct transfer); T1 = 2 (waiting for To-10
doorbell, which indicates that -11 has set up
for a To-10 indirect transfer); T1 = 3
(waiting for To-10 done on indirect transfer)
NIV TAPUUO STOP Null Interrupt Vector
TPMDON is called by TAPSER when I/O is
complete to dispatch to the correct routine
for processing. This stopcode occurs when
the routine address for this function is
null.
Data Items: P1 = function; (T1) = should be dispatch
address
NJT ERRCON STOP Null Job Has TTY
EXCALP prints the PC of a monitor call that
caused an error. This stopcode occurs when
NULJOB has control of the terminal.
NLB FILUUO JOB No Last Block
This stopcode occurs during UFD compression
if we cannot find the pointer for the last
block of the UFD.
NMC ONCMOD HALT No More Core
OK22B sets up controllers during system
startup. This stopcode occurs when the
routine used to create a device data block
for ONCE-only I/O (SETDDO) gives an error
return, which indicates that no core is
available.
Data Items: T2 = size of chunk needed
40
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
NMU REFSTR DEBUG No More Units
HOMZR2 writes zeros in unused blocks in
HOME.SYS. This stopcode occurs when the
count of units is greater than the number
that can be accessed.
Data Items: T1 = cluster count; T2 = next retrieval
pointer
NNF FILUUO DEBUG NMB Not Found
GETNMB gets the location of the name block
(NMB) from the DDB. This stopcode occurs
when there is no access table entry for the
user channel.
NNR FILUUO JOB No Next RIB
DELGRP returns blocks on an update ENTER.
This stopcode occurs when the last block
pointer cannot be found in the current RIB,
so an attempt is made to scan the next RIB,
but there is no other RIB.
NNS CORE1 DEBUG Not in Non-Zero Section
In attempting to clear/set bits in a bit
table, SETR was called requesting the usage
of a relative AOBJN pointer. This is only
relevant for bit tables in non-zero sections
and the code was not executing in a non-zero
section.
NNU ONCMOD DEBUG Not a New Unit
FILMAN finds and sets up all structures on
the system. This stopcode occurs when the
monitor expects to find a new unit pointer as
the next item read, but does not.
Data Items: T1 = AOBJN pointer for scanning retrieval
information; T2 = supposed new unit pointer
(Bit 18 must be set to be a new unit
pointer); T3 = logical unit number in this
structure; P2 = address of structure
NOB COMNET DEBUG "Nobody" Got Obsolete Buffer
This stopcode occurs if someone tries to pass
a message to a Front End which is not owned
by anyone. This is probably caused by the
line driver trying to return stale data to a
previous line user and getting confused.
41
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
NOT SCNSER DEBUG No Operator TTY
TTYERP finds a terminal device data block for
a monitor error message. This stopcode
occurs when the monitor cannot find a DDB for
a job, so it tries to find the operator's
line number from ONCE and still cannot find
it.
NPD FILIO DEBUG No Pointers in DDB
EXTRIB creates an extended RIB. This
stopcode occurs when an extended RIB is
needed, but no pointers exist in the DDB.
Data Items: DEVMBF(F) = IOWD to monitor buffer
NPF LOKCON STOP Next Page Free
PAGFND finds the target page in this
segment's map because it was not on the
free-core list. This stopcode occurs when a
page in this segment is marked as free.
Data Items: T1 = current page; T2 = PAGTAB entry for the
next page (this is the page that caused the
error)
NPI KLSER HALT Not Parity Instruction
SWPTRP sweeps a memory for parity. This
stopcode occurs when a page fail trap occurs
that is not caused by the sweep routine and,
in fact, is caused by the instruction at
label CPLMPI.
Data Items: T1 = PC of the instruction that caused the
trap (also in .UPMP + .LMPFP); .UPMP +
.LMPFW = page fail word
NPJ DATMAN DEBUG No PDB for Job
This stopcode occurs when no process data
block can be found for this job.
Data Items: J = job number
42
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
NPN ERRCON STOP Nonexistent Page Not Free
CPINXF fixes up the core-allocation tables
after pages have been marked out in NXMTAB
because of parity errors or NXMs. This
stopcode occurs when the page being marked
off line is in use not free).
Data Items: PAGTAB(T1) = page entry of page causing the
stopcode
NPU ERRCON STOP Null Pushdown List Underflow
This stopcode occurs when there are more POPs
on the null pushdown list than matching
PUSHs.
NRF VMSER DEBUG SWPLST Not Really Fragmented
This stopcode occurs when there is a pointer
to a fragmented SWPLST entry, but the entry
is not really fragmented.
NRM FILUUO JOB Next RIB Missing
RENRIB is used when allocation or
deallocation is done and set up to do the
close. This stopcode occurs when the last
block pointer is not found in the current RIB
and there are no other RIBs.
NRS ONCMOD DEBUG No RIB in SAT
FILMAN finds and sets up all structures on
the system. This stopcode occurs when the
monitor expects to see a read-in block, but
does not.
Data Items: T1 = the supposed RIB
NSE VMSER DEBUG No SWPLST Entry
This stopcode occurs when the monitor
attempts to compute the unit and block
numbers corresponding to a SWPLST entry, but
the pointer to SWPLST points to a zero word.
43
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
NSR REFSTR HALT No Second RIB
FILSET creates a file of contiguous disk
space and write zeros in data blocks. This
stopcode occurs when the subroutine used to
scan a block of retrieval pointers to find
the group pointer, SCNPTR, gives an error
return because it cannot find it.
Data Items: P1 = pointer to cluster count; T2 = number
of clusters in this pointer
NSS REFSTR DEBUG No Space for SAT
ENDSAT allocates blocks in the HOME.SYS file
for SATs. This stopcode occurs when there
are no free clusters left.
NSU FILIO DEBUG No Such Unit
USTRIB reads in the RIB and scans it from the
beginning if the pointers do not encompass
the desired block. This stopcode occurs when
the subroutine that finds a unit (NEWUN)
gives an error return indicating that the
desired unit is greater than the last unit in
the structure.
Data Items: S = error bits; IOBKTL SET
NTE SCHED1 STOP Not Processor Queue Error
QLNKZ is used in the requeuing of a job.
This stopcode occurs when this routine is
called for a job that is not in a processor
queue.
Data Items: J = job number
NUB FILFND JOB No UFB Block
STRDN4 creates an access table entry. This
stopcode occurs when there is no UFD for a
file even though the file exists.
Data Items: P2 = Structure data block (LH)
NUE FILUUO JOB No UFB Error
SETUFR sets the RIBUFD word in the RIB. This
stopcode occurs when an error return is given
by the subroutine used to compute the RIBUF
word, but actually there is no UFD or SFD, so
there can be no UFB error.
Data Items: DEVUFB(F) = pointer to UFD; DEVSFD(F) =
pointer to SFD, if any
44
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
NUI XTCSER DEBUG Non-existent Unit Interrupting
XTCSER could not find the UDB for a unit it
received an interrupt request from.
NUN FILUUO DEBUG NMB Use-count Negative
The name-block use count was decremented to
-1.
NUP FILUUO DEBUG No Unit-Change Pointer
LSTUNI finds the last unit-change pointer in
a RIB. This stopcode occurs when no change
pointer is found or when the pointer is not a
unit-change pointer.
Data Items: T2 = pointer
NWA NETDEV STOP No-one Wrote Anything
TWRPCB writes back the count field and
updates the pointer in the PCB. It also
removes garbage from the stack.
Data Items: T1 = minimum number of bytes required (less
count field)
NXS VMSER DEBUG Non-existent Section
DNZSPG is called to return a non-zero section
page to free core. This stopcode occurs if
the section of the specified page does not
exist.
NXU FILIO DEBUG Non-existent Unit
WRTRIB writes a RIB. This stopcode occurs
when a unit-change pointer points to a unit
that does not exist in the structure.
Data Items: S = error bits; U = 0 if not in any F/S
O1F VMSER DEBUG Only 1 Fragment
This stopcode occurs when swapping space is
fragmented, but there is only one entry in
the fragment table.
OBA DTESER DEBUG Output Buffer Already Allocated
When DTESER was called to do I/O on a DTE, it
found a buffer had already been allocated for
it in the ETD block.
45
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
OMR JOB Out of Mapping Registers
MAPIO sets up the UNIBUS adapter mapping
registers for a given IOWD following the
paging of a job. This stopcode occurs when
an attempt is made to point to the next
mapping register, but there is none.
Data Items: P1 = address of next paging register to be
used; P2 = address of first paging register
used
ONC FILUUO DEBUG Odd-Numbered Cluster
UPDGIV deallocates or truncates blocks from a
file. This stopcode occurs when the number
of blocks allocated to a file is not an even
multiple of the number of clusters allocated.
Data Items: T1 = number of clusters; T2 = remainder
OVA ONCE HALT Out of Virtual Address Space
ONCMAP selects the physical and virtual
address for space in the high segment. This
stopcode occurs when the number of virtual
pages is greater than 256K.
Data Items: R1 = virtual page number
P2L VMSER STOP Page Too Low
This stopcode occurs when an address in the
user page map is too low; that is, the
address is in the monitor space.
PAO COMCON STOPE Page Already Out
PAGRE creates a directory page. This
stopcode occurs when an attempt is made to
page out a page that is already out. The
page is being paged out because the job's
physical limit has been exceeded.
Data Items: J = job number
PBO NETSER STOP PCB Buffer Overflow
On input done, we found that the data input
overflowed the PCB's buffer allocation.
46
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
PCI DTESER STOP Previously Checked Function Code Illegal
ISALL checks to see if the function code is
legal for all devices. This stopcode occurs
when: (1) the function code is greater than
MAXFNC (currently 33); (2) the function code
is illegal for the direction of the transfer;
or (3) if in 16-bit mode, the function is
illegal for that mode.
Data Items: T1 = function code
PCN IPCSER DEBUG Packet Count Negative
UIPCFR is used on an IPC receive monitor
call. This stopcode occurs when the count of
unreceived IPCF packets goes negative.
Data Items: P1 = PID
PDA FILIO DEBUG Pointers With Different Addresses
DD2MN copies pointers from the DDB to the
monitor buffer during monitor mode I/O. This
stopcode occurs when the RIB pointers and
those now in the monitor buffer differ.
Data Items: T3 = XORed RIB and monitor buffer pointers;
T4 = cluster pointer
PEW VMSER DEBUG PAGTAB Entry Wrong
PHYCRZ allocates physical core. This
stopcode occurs when a page that is in the
free-core list is found while scanning the
pages allocated to a segment.
Data Items: T1 = number of pages; T2 = starting virtual
page number
PEZ CORE1 STOP PAGPTR Equals Zero
GTPAGS adds to or takes pages from the
free-core list. This stopcode occurs when
the location PAGPTR, which points to the
first free page, is zero.
PFC VMSER STOP Page on Free Core List
SETHMT prepared for high-segment swap. This
stopcode occurs when the monitor finds a page
that is in the free-core list while scanning
pages allocated to a segment.
Data Items: T1 = first disk address; T2 = first page
number; T3 = number of pages
47
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
PFL VMSER DEBUG Piece on Free List
GVFWDS returns words acquired by GTFWDC or
GTFWDU. This stopcode occurs when an attempt
is made to return a chunk of funny space that
is already on the free list.
PFN KLSER CPU Page Fault in Null Job
A page fault occured while the null job was
running.
PFR VMSER DEBUG Piece Out of Free Range
GVFWDS returns words acquired by GTFWDC or
GTFWDU. This stopcode occurs when GVFWDS is
called with an address that is not in funny
space.
PFS LOKCON STOP Page is Free in Segment
PAGFRE checks to see if the target page is on
the free-core list and, if so, exchanges it
with the current page. This stopcode occurs
when the current page is marked as being free
in PAGTAB.
Data Items: T1 = current page; T2 = PAGTAB entry of page
causing the stopcode
PGL COMCON STOP Pages Got Lost
PAGFRE creates a directory page. This
stopcode occurs when the page cannot be paged
out.
PIE ERRCON CPU Priority Interrupt Error
This stopcode occurs when a device interrupts
to the wrong location. A jump occurred to an
even address between 42 and 66 (octal).
PIF VMSER DEBUG Page Is Free
This stopcode occurs when the monitor finds a
page that is in the free-core list while it
is scanning pages allocated to a segment.
PIN VMSER DEBUG Page In Working Set
WSBIT gets bit and index for WSBTB and
AABTAB. This stopcode occurs when the
monitor finds a page in the working set that
has been verified as not in the working set.
48
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
PIP KLSER STOP PI In Progress
This stopcode occurs when priority interrupt
is in progress while handling a stack
overflow.
Data Items: .CPAPC = error PC
PIW VMSER DEBUG Page Isn't in Working Set
PAGOMT sets up MEMTAB for paging out. This
stopcode occurs when the monitor decides that
a page must be in the working set, but it is
not.
PJ0 CLOCK1 DEBUG Requeue Job 0
REQUE requeues a job to run. This stopcode
occurs when an attempt is made to requeue job
0 (the null job) to run.
PLP FILIO DEBUG Past Last Pointer
USETO1 is used to do a USETO when the
requested block is higher than the highest
allocated block. This stopcode occurs when
the SCNPTR routine, which scans pointers,
cannot find a block that should be in the
file.
Data Items: P1 = top block to allocate; P2 = first block
to allocate; DEVLPC(F) = RIB pointer
PMU CORE1 STOP PAGTAB Messed Up
This stopcode occurs when a zero is
encountered as the link to the next page in
the segment while setting up the user's
page-map page to reflect the location of the
pages in physical memory.
Data Items: T1 = byte pointer to the map; T2 = page
attributes; T4 = number of pages -1 left in
this segment
49
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
PNE FILIO DEBUG Pointers Not Equal
PTRTST reads the pointers into core, compares
the old pointers in the RIB with the new
pointers in the DDB, and rewrites the RIB if
they differ. This stopcode occurs when an
error is found in the cluster pointer after
the pointers in the RIB have been updated.
Data Items: (T1) = pointer in the monitor buffer; T3 =
XORed RIB and monitor buffer pointers; T4 =
cluster pointer
PNM FILFND DEBUG Physical Name Mismatch
DSKCHK checks to see whether C(T1) =
'DSK,''DS' or 'D'. This stopcode occurs when
the physical name of the device is lost after
it has been determined that a name refers to
a disk unit.
PNP LOKCON STOP Page Not Present
PAGMOV finds the target page on the free-core
list or within the current segment and
exchanges it with the source page. This
stopcode occurs when the source page cannot
be found in the current segment.
Data Items: T2 = successor to current page
PNW VMSER DEBUG Page not in Working Set
DLTMPG returns a funny page to the free-core
list.
POR SEGCON STOP Process Out of Range
COMIT is used to right half of J with
JBTSGN(T1). This stopcode occurs when the
job number is out of range.
Data Items: J = job number
PQE FILIO DEBUG Positioning Queue Empty
UNIPOS picks a file on a unit and starts
positioning for that file. This stopcode
occurs when a disk unit was in the
position-wait state, but there are no files
in its queue to be positioned.
Data Items: U = location of unit data block
50
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
PRF KLSER CPU Page Refill Failure
This stopcode occurs when a page-fail code of
22 is returned by the pager.
Data Items: T1 = page-fail code; .CPTPI = PI state;
.CPTCX = trap context
PSF CORE1 STOP Page in Segment Free
This stopcode occurs when a page is found
that is marked in PAGTAB as being free while
scanning a job's pages looking for page n or
the last page.
Data Items: T1 = current page within this segment; T2 =
number of pages left to scan; T3 = PAGTAB
entry for next page in segment, that is,
PAGTAB(T1).
PTL DTESER STOP Packet Too Large
DTERNG is entered on a To-10 doorbell
interrupt. This stopcode occurs when the
monitor allocates a To-10 buffer of the size
that the -11 said the message was, but the
message is actually larger than the buffer
for this DTE.
Data Items: T1 = queue size in 8-bit bytes that the -11
says the message is; T3 = size of the To-10
buffer in 8-bit bytes
PTP KLSER HALT Page Table Parity
A page fail code of 25 was received from the
pager. The operation that failed is retried
10 times before halting.
Data Items: .CPPTP = count of page table parity errors;
** = ACs saved in CPU status block.
PTT CORE1 DEBUG Past Top of Table
SETZRS sets zeros in a table. This stopcode
occurs when the SETZRS routine attempts to
zero more bits than exist.
Data Items: (T2) = top of table; T4 = final address to
clear bits
PUF SEGCON JOB PATH UUO failed
PTHFIL looks up a file and returns the path
for it. This stopcode occurs when the
PATH. monitor call fails.
51
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
PUN FILUUO DEBUG PPB Use-count Negative
The PPB use-count was decremented to -1.
QEF DTESER STOP Queue Entry Full
STXPPC starts primary protocol on a DTE.
This stopcode occurs when the To-11 queue is
full, even though primary protocol is just
starting.
Data Items: T1 = address of entry from To-11 queue
QFU QUESER JOB Q-Blocks Fouled Up
TSTAAC tries to determine if we need to
increment the read count in the access table
to make it stay around. This stopcode occurs
when a zero entry is found in the link to the
next queue.
RBQ SCHED1 STOP Requeueing to Beginning of Queue
QFIX is used in the requeuing of jobs. This
stopcode occurs when an attempt is made to
requeue a job to the beginning of the same
queue.
RCC SCNSER STOP Range-Checked Chunk
This stopcode is called by several places,
each doing a range check on a character
address. This stopcode occurs when the
character address is not within the TTY
buffer pool.
Data Items: T2 = character address character address (in
T2) that was not in the TTY buffer pool.
This can be caused by attempting TTY output
without first setting up U to point to an
LDB.
52
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
RCD SCNSER DEBUG Random Chunk Discrepancy
This stopcode is called from a number of
places in SCNSER where it is noted that chunk
pointers and counts are inconsistent.
RDN TAPUUO DEBUG Regular DDB Not Found
SETODN sets the density in the other DDB.
This stopcode occurs when there is no regular
DDB.
Data Items: R3 = UDB
RDP FSXKON DEBUG RS04 Doesn't Position
FSXPOS is a stopcode-only routine that is
used when the FILIO module tries to position
an RS04.
RDS SEGCON STOP REMAP Didn't Skip
GETFIN remaps the save file after it has been
read in its entirety. This stopcode occurs
when the remap fails because the arguments
are wrong, pages do not all exist in the page
specified, or moving the pages to the virtual
address specified would cause the high and
low segments to overlap.
REH ERRCON HALT Recursion in Error Handler
DIE recovers/reloads after an internal system
error. This stopcode occurs when another
stopcode occurs before the previous one is
done.
RFU TAPSER STOP Recovery Fouled Up
ERPINT handles interrupts while error
recovery is in progress. This stopcode
occurs when the function code for dispatching
is greater than 6.
Data Items: T2 = function code; T1 = pointer
53
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
RHN FILIO DEBUG Reread Home Block-Count Negative
SETMDL sets the file to idle when monitor I/O
is done. This stopcode occurs when the flag
DEVRHB(F) indicates that the HOME blocks are
being reread, but the flag that tells the
number of units that are rereading HOME
blocks (HOMFG) is negative.
RIE XTCSER DEBUG Remote Interrupt Error
This stopcode occurs if there is any error
bits are lit on an interrupt from a remote
system on the DA28.
RIF DPXKON DEBUG RP10 Isn't Fancy
These are stopcode-only routines. This
stopcode occurs when the monitor attempts an
RP04-only function, such as an UNLOAD, on an
RP10-controlled device.
RJZ SCHED1 STOP Requeue Job Zero
QXFER is used in the requeuing of a job.
This stopcode occurs when a call is made to
this routine with a job number less than or
equal to zero or greater than JOBMAX.
Data Items: J = job number
RLD STOP UUOCON Reload Monitor
This is a result of the RECON. UUO function
.RCRLD, which is callable by a privileged
user or the CONFIG command SHUTDOWN. (Refer
to the TOPS-10 Operator's Guide for more
information.
RNP VMSER DEBUG Returning Non-existent Page
DNZSPG returns non-zero section pages to free
core. This stopcode occurs if an attempt is
made to return a page that does not exist.
ROU ONCMOD HALT Ran Out of Units
NXTSAT reads all the SATs on a unit and
computes the number of free clusters left in
each SAT. This stopcode occurs when the SAT
pointers indicate that there is another unit,
when in fact there is no other unit.
Data Items: P4 = number of units remaining
54
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
RPM ONCMOD DEBUG Retrieval Pointer Mismatch
FILMAN finds and sets up all structures on a
system. This stopcode occurs when the
unit-change pointer in the file SAT.SYS did
not point to the next unit in the file
structure.
Data Items: T2 = expected unit-change pointer; T3 =
logical unit number expected
RPZ VMSER STOP Returning Page 0
The monitor tried to return page 0 to the
free page list, but it could not.
RQD SCNSER DEBUG RECINT Queue Discrepancy
This stopcode occurs if we just emptied the
RECINT queue but the taker and putter
pointers do not match.
RQF SCNSER DEBUG RECINT Queue Full
This stopcode occurs the RECINT character
queue wraps around.
RSJ CLOCK1 DEBUG Requeue Same Job
REQUE requeues a job to run. This stopcode
occurs when an attempt is made to queue the
same job again.
Data Items: J = job number
RTM NETDEV STOP Requested Too Much
TRQPCB gets a terminal Protocol Control Block
(PCB)
T1 = minimum number of bytes
RWD FILIO DEBUG Returning Wrong Unit's DA
DWNDA gives up a disk allocation request.
This stopcode occurs when the unit's DA that
is being dequeued is not correct for this
job.
Data Items: PJOBN = job number
55
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
RWS VMSER DEBUG Returning Space to Wrong Section
GVFWDS returns funny space pages. This
stopcode occurs if the monitor attempts to
return funny space from a section from which
it cannot be allocated.
SAC ERRCON DEBUG Strange APR Condition
This stopcode occurs when an APR interrupt
occurs with no known error bits set.
Data Items: S = APR error condition
SAU CPNSER DEBUG Scheduler Already Unlocked
ULKSCD unlocks the scheduler interlock. This
stopcode occurs when the interlock is already
free.
Data Items: SCKLOK = Interlock
SBn COMMON CPU SBUS Error Alone
This stopcode occurs when an SBUS error alone
came up in CONI APR. This is a serious
hardware problem. Call your Field Service
representative.
SBT FILUUO DEBUG Shouldn't Be Truncating
CLSRIB closes a file. This stopcode occurs
when an attempt is made to truncate unwritten
blocks, but the highest block number in the
file is too small.
Data Items: P2 = current block of RIB; P3 = DEVREL
SBW VMSER DEBUG SWPLST Bits Wrong
This stopcode occurs when an entry in SWPLST
shows both that I/O is in progress and that
I/O is complete.
56
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
SBZ VMSER STOP Swap Block Zero
This stopcode occurs if, in picking the next
swap list entry, we find that it specifies an
invalid disk address.
SCB XTCSER DEBUG Spurious CONI Bit
This stopcode occurs if certain random error
bits are lit on the CONI status read on an
XTC interrupt.
SCR DEBUG SEGCON Segment Couldn't Be Read
INPSEG is called to read in a high segment.
This stopcode occurs if INPSEG returns
non-skip.
SDE FILIO DEBUG SAT Doesn't Exist
GIVBLK returns disk blocks. This stopcode
occurs if GIVBLK cannot find the SAT in which
the blocks are supposed to exist.
SDS UUOCON DEBUG SWPADR Didn't Skip
SWPADR converts a swapping space address to a
unit/disk address. This stopcode occurs when
the JOBPEK UUO determines it needs to
read/write the swapping space and calls
SWPADR to convert a swap address to a
unit/disk address. SWPADR does not have a
non-skip return.
SER FILUUO JOB SETDDO Error Return
FAKDDB sets a DDB. This stopcode occurs when
subroutine SETDDO gives an error return
indicating no core is available to build a
device data block, although space had been
found just before the call.
Data Items: T1 = address in memory found previous to call
SFU FILIO DEBUG Swapper Fouled Up
SWAPIO puts a swap request into the queue.
This stopcode occurs when this routine is
called with no request.
57
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
Data Items: SQREQ = 0, should have been the request
SGH DTESER DEBUG Shouldn't Get Here
This is a catchall stopcode in DTESER.
Examine the stack for context.
SHU SCHED1 DEBUG Swapper Hung Up
NOFORC times out devices that are active to a
job waiting to be swapped out. This stopcode
occurs when the device-hung timer times out.
SIE VMSER DEBUG SWPLST Is Empty
DLTSLE was called to delete a SWPLST entry,
but there were no entries in SWPLST.
SIN VMSER DEBUG SWPCNT Is Negative
This stopcode occurs when the count of the
number of outstanding swapping requests
becomes negative while an entry from SWPLST
is being deleted.
SLF VMSER DEBUG SWPLST Full
This stopcode occurs when there is no room
for an entry in the swap list table.
SLM FILUUO DEBUG Search List Missing
FNDFRA is used when the PPB and/or the UFB
are deleted. This stopcode occurs when the
SETSRC routine cannot set up a search list,
even though it seemed possible when the call
started.
SLO FILFND JOB Search List Overflow
SLXSLO is a stopcode-only routine. Examine
the stack for the location of the error.
58
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
SLZ VMSER DEBUG SLECNT Is Zero
This stopcode occurs when the subroutine to
find an entry in the SWPLST table is called
when there are no entries in the table.
SME ERRCON HALT Serious Memory Area
A memory parity error occurred in the
monitor.
SMU SCHED1 DEBUG SWPCNT Messed Up
SWAP is used to swap jobs.
Data Items: J = job number; SWPCNT = count of completed
swapping operations.
SNF LOKCON STOP Segment Not Found
LOCK0 locks a segment in core. This stopcode
occurs when the monitor cannot find a segment
that contains a certain page.
Data Items: T3 = absolute page address being looked for
SNI SWPSER DEBUG Swapping Not In Progress
SWPINT is used when paging or swapping I/O is
done for a monitor that includes virtual
memory. This stopcode occurs when the
swap-in progress count goes negative.
Data Items: SPRCNT = Swap-in progress count
SNO DEBUG Segment Not Owned By Anyone
While attempting to migrate a high segment
from a unit that is being taken off the
active swapping list, CHKMIG found a segment
that should have been in use by some job but
no job was linked to the high segment.
SNS NETDEV STOP NTRPCB Not Set Up
TWRPCB writes back the count field and
updates the pointer in the PCB. It also
removes garbage from the stack.
Data Items: T1 = minimum number of bytes
59
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
SOD SCHED1 STOP Space On Disk
SWAPI swaps in either a job or high segment.
This stopcode occurs when the core-allocation
routine (CORGET) assigns space on the disk,
but the assignment is illegal.
Data Items: J = job number
SOR ERRCON STOP Segment Out of Range
ERRPNT prints common error messages. This
stopcode occurs when the job or segment
number is too large.
Data Items: J = job number
SPM FILUUO JOB Second Pointer Missing
UFDNXT initializes the next block for a
directory. This stopcode occurs when the
pointer to the second RIB is missing from the
first RIB.
Data Items: T3 = Supposed location of second RIB pointer
SRE ONCMOD DEBUG SAT Read Error
NXTSAT reads all SATs on a unit and computes
the number of free clusters left in each SAT.
This stopcode occurs when a read error occurs
while reading the SAT.
SRO SWPSER STOP Space Ran Out
NXUN is used when we have filled the current
unit and we need more swapping space. This
stopcode occurs when there are no more units
for swapping.
SSD SWPSER STOP Swap Space Disappeared
FOUND is used when contiguous space has been
found on a unit for swapping. This stopcode
occurs when an attempt is made to allocate
that space, which for some reason is no
longer available.
Data Items: U = address
60
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
SSO LOKCON STOP Segment Swapped Out
LOCK0 locks a segment in core. This stopcode
occurs when a high segment that is neither
dormant nor idle has no low segment in core.
SWN SWPSER DEBUG SQREQ Went Negative
SWPINT is used when paging or swapping I/O is
done. This stopcode occurs when the count of
paging or swapping requests goes negative.
TC0 XTCSER DEBUG XTCSER Stopcode Zero
XTCSER has found the controller free and the
unit unlocked, but there are requests in the
queue waiting to be processed.
TC1 XTCSER STOP XTCSER Stopcode One
XTCSER should have already set a "Waiting for
Input" message, but has not.
TC2 XTCSER DEBUG XTCSER Stopcode Two
XTCSER expected the DAS28 to be idle, but it
was not.
TC3 XTCSER DEBUG XTCSER Stopcode Three
The number of pseudo active tasks in the XTC
UDB went negative.
TC4 XTCSER DEBUG XTCSER Stopcode Four
The number of pseudo active tasks in the XCT
KDB went negative.
TC5 XTCSER DEBUG XTCSER Stopcode Five
The number of pseudo active tasks in the XTC
UDB went negative.
TC6 XTCSER DEBUG XTCSER Stopcode Six
The number of pseudo active tasks in the XTC
KDB went negative.
61
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
TC7 XTCSER STOP XTCSER Stopcode Seven
This stopcode occurs when XTCSER expected to
have the controller interlocked but found it
did not.
TCI FILUUO DEBUG Truncation Check Inconsistent
RENDEL deallocates or truncates on a RENAME.
This stopcode occurs when an attempt is made
to truncate too many blocks and a check on
the same had already succeeded.
Data Items: P1 = AOBJN pointer; P3 = number of blocks
TMP FILIO DEBUG Too Many Pointers
PTRWRT copies RIB pointers into a monitor
buffer and writes it. This stopcode occurs
when there are more retrieval pointers than
can fit in a RIB. The counter DEVRSU should
prevent this from happening.
Data Items: T2 = remaining pointers (IOWD)
TMR REFSTR HALT Too Many Retrieval Pointers
SATRBS stores retrieval pointers in the
SAT.SYS read-in block. This stopcode occurs
when the SAT byte pointer is messed up.
Data Items: T1 = SAT byte pointer
TMU ONCMOD HALT Too Many Units
NXTSAT reads all SATs on a unit and computes
the number of free clusters left in each SAT.
This stopcode occurs when there are pointers
to more units after the last has been
retrieved.
Data Items: U = pointer to more units
62
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
TNI DTESER STOP To-10 Not Idle
DTERNG answers a To-10 doorbell interrupt.
This stopcode occurs when the monitor decides
that this is a direct transfer and expects
the DTE to be in an idle state, but it is
not.
Data Items: T1 = To-10 DTE state code; 0 = idle
TQP DTESER STOP Found To-11 Queue Pointer
This stopcode occurs when a byte pointer to
the To-11 queue is found while starting
primary protocol on a DTE.
Data Items: T1 = pointer to first word in To-11 queue
UAF STOP UNIBUS Addressing Failure
SEILM processes page-failure traps. This
stopcode occurs when what appears to be a
page fault turns out to be a UNIBUS
addressing failure.
UDE FILIO DEBUG Unit Doesn't Exist
RIBCUR reads the current RIB. This stopcode
occurs when a requested unit is not in any
file structure.
Data Items: DEYRBU = current RIB logical unit number
pointer
UDM FILUUO JOB UFD Data is Missing
UFDALB allocates a block for a UFD. This
stopcode occurs when the core tables show
that the UFD is longer than it actually is.
Data Items: T3 = supposed number of blocks of this UFD.
UFI FILUUO STOP Unit Free-Count Inconsistent
CLSOU5 is used during a CLOSE after finding a
unit with space on it. This stopcode occurs
when an attempt is made to allocate the
space, but no space is available.
Data Items: T2 = Number of blocks needed
63
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
UID D8SINT DEBUG Unexpected Input Done
T10DON handles To-10 Done interrupts from the
-11. This stopcode occurs when no input is
expected.
Data Items: T1 = CPU number
UIF ONCMOD HALT Unit Already In File Structure
DMKSTR sets up structures according to tables
in ONCMOD. This stopcode occurs when a unit
appears in more than one structure.
UIL ERRCON STOP UUO at Interrupt Level
EMUERR is called when an illegal monitor call
occurs at exec level. This stopcode occurs
when the monitor call occurs at interrupt
level.
UIP XTCSER DEBUG Not a Unique Interrupt
XTCSER decided to call routine DDBINT (for
DDB doing data I/O) instead of UNIINT, but
XKBIUN (pointer to UDB requesting interrupt)
was non-zero, implying XTCSER should have
called UNIINT. Only one of DDBINT or UNIINT
should be called.
ULE LP2SER JOB Unexpected LP20 Error
LPTERR handles VFU errors for LP20
controllers.
Data Items: F = DDB; T1 = function
ULP DEBUG UBA Lost its PI Assignment
KSSEC performs once-a-ssecond tasks for the
KS10.
UNF FILUUO DEBUG UFB Not Found
NAMNW updates RIBNAM, RIBEXT, and RIBPPN when
there is a CLOSE for RENAME. This stopcode
occurs when a RENAME is done across UFDs and
the UFB is not found.
Data Items: T1 = Structure number; T2 = Start of UFB
chain
64
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
UNJ COMMON STOP UUO from Null Job
This stopcode occurs when the null job
executes a monitor call other than the
doorbell call.
UNL VMSER DEBUG UPMP Not Last
This stopcode occurs when the UPMP is not the
last page swapped out.
UNR UUOCON DEBUG UPMP not right
GETUVP is called by the JOBPEK UUO to read a
page from the swapping space. This stopcode
occurs if the job's UPMP is in core, but is
not mapped as the current UPMP.
UPC FILUUO JOB Unit-Change Pointer Clobbered
SETENC enters a file. This stopcode occurs
when the pointer to a unit of a RIB is lost
during RIB definition.
Data Items: S = status bits; T3 = location of the access
table
UPF KLSER HALT Unexpected Page Fail
This stopcode occurs when there is a page
fail trap during a recovery attempt of an
AR/ARX trap, which is not caused by a test
reference.
Data Items: .UPMP+.LMPFW = page fail code; .UPMP+.LMPFP
= page fail PC
UPI FILIO DEBUG Unit Pointer Illegal
EXTRIB creates an extended RIB. This
stopcode occurs when an attempt is made to
create an extended RIB on a nonexistent unit.
Data Items: T2 = change unit pointer (should have been a
real unit pointer)
65
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
USW TAPSER DEBUG Unit Status Wrong
TAPSIO is used when the swapper level wants
to start I/O on a unit. This stopcode occurs
when the unit status is not as expected. For
example, the unit was started (possibly on
another controller) when it should have been
stopped.
Data Items: RUBSTS(U) = unit number
WAD VMSER DEBUG WSBTBL and AABTBL Discrepancy
This stopcode occurs when there is an access
page fault for a page that should have the
access allowed bit on in the page map.
WCD DEBUG DTESER Wrong CPU for DTE
This stopcode occurs if DTEDSP is called
while running on a CPU other than the CPU on
which the DTE which is being accessed exists.
WCN DTESER STOP Wrong CPU Number
DTEQUE places an entry into a DTE's To-11
queue. This stopcode occurs when the CPU
number on which the DTE for this entry is
located is not this CPU.
Data Items: T1 = the CPU number on which the DTE for this
entry is located; .CPCPN = this CPU number;
F = DTE control block address
WDU DEBUG DTESER Wrong DTE User
This stopcode occurs if DTEDSP is called to
perform some function on the DTE, but the
type of user of the DTE is not the type of
user which called DTEDSP.
WEM NETSER STOP William E. Matson
This is a catch-all stopcode. Examine the
stack for the location of the error.
66
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
WPT KLSER HALT Wrong Parity Trap
This stopcode occurs when there is a page
fail while trying to recover from an AR/ARX
trap, which occurred because of a test
reference, but the page fail code is not 36.
Data Items: T1 = page fail code; .UPMP + .LMPFW = page
fail code; .UPMP + .LMPFP = page fail PC
WRF COMMON CPU Warm Restart Failed
A condition such as a DEX has occured and the
monitor has attempted to warm restart, but
cannot due to various conditions being in
effect at the time of the original failure.
WRJ COMMON JOB Warm Restart Got Job
A condition such as a DEX has occured and the
monitor has attempted a warm restart. The
condition occured while some job other than
the null job was running in user mode.
WSM FILIO STOP Wrong Size Moved
Routine CSSETL is called to set the size of a
BLT to/from the disk cache. This stopcode
occurs if the size is greater than one block
worth of data.
WTP CLOCK1 JOB Wrong Type of PDL
WSCHED is entered at monitor call level when
a job goes into I/O wait or sharable-device
wait. This stopcode occurs when the address
of the pushdown list is too low to be a
monitor call pushdown list.
Data Items: P = pushdown list
XPW LOKCON STOP Exchanged Page Went Away
FIXMAP finds a page with which a page was
exchanged and fix the map slot for that page.
This stopcode occurs when the monitor cannot
find the page that was exchanged.
XTH SCHED1 DEBUG XJOB Too High
FNDXPN finds the expanding job. This
stopcode occurs when the count of the number
of jobs that must be swapped out and back in
to satisfy a core expansion request is
positive, but no expanding job is found.
67
TOPS-10 Monitor Stopcodes
Name Module Type Message and Explanation
ZBC REFSTR DEBUG Zero Blocks Per Cluster
REFSTR refreshes a structure. This stopcode
occurs where the number of blocks per cluster
equals zero.
Data Items: T1 = IOWD for home block; P2 = address of
structure data block
68
APPENDIX A
DECnet-10 STOPCODES
A.1 STOPCODE DEFINITIONS
A list of the DCN/D36 stopcode subtypes is presented on the following
pages in alphabetical order. The list shows the name of each
stopcode, the type of stopcode, the stopcode message (for which the
name is a symbol), an explanation of the cause, and suggested recovery
procedures. The occurrence of any of the following stopcodes
indicates an internal problem with the code and can be reported to
DIGITAL through a Software Performance Report.
When analyzing a crash dump caused by a DCN/D36 stopcode, an unusual
procedure must be followed to find the location in the code that
invoked the crash. With these stopcodes, the AC CX points to the
instruction immediately following the stopcode invocation. The
stopcode invocation looks like:
XCT XXXXXX
Where:
XXXXXX is a mnemonic identifying the error.
Example:
XCT ROUNSO
The three types of stopcodes described in this document are:
1. INF
2. CHK
3. HLT
A.1.1 INF Stopcodes
An INF stopcode is not immediately harmful to any job or to the
system. It acts as an alert that something unusual is happening. A
message of the following form is printed on the CTY:
%%DECnet buginf: XXXXXX - message
A-1
DECnet-10 STOPCODES
Where:
XXXXXX is a mnemonic identifying the error.
message is the stopcode message.
Example:
%%DECnet buginf: ROUBTF - Bad Test message format
A.1.2 CHK Stopcodes
A CHK stopcode is the same as a DEBUG monitor stopcode or a DCN
stopcode. Such a stopcode is not immediately harmful to any job or to
the system. A CHK stopcode indicates the monitor encountered an
internal error at the interrupt level and is performing a dump.
Processing continues and a message of the following form is printed on
the CTY:
?CPU1 monitor error. Stopcode name is DCN
Job jobn on TTYnnn running name User [PPN]
UUO is octal representation at user PC address
XXXXXX - message
Where:
jobn is the number of the job causing the error.
nnn is the number of the controlling TTY.
name is the name of the program running for that
job.
PPN is the project-programmer number for that
job.
octal is the octal representation of the monitor
representation call failing for that job.
address is the value of the program counter for that
job.
XXXXXX is a mnemonic identifying the error.
message is the stopcode message.
Example:
?CPU1 monitor error. Stopcode name is DCN
Job 46 on TTY103 running DDT User [10,5535]
UUO is 47000777776 at user PC 002644
LLIDIR - Duplicate Interrupt Message Received
A.1.3 HLT Stopcodes
A HLT stopcode is the same as a STOP monitor stopcode or a D36
stopcode. Such a stopcode indicates an internal error that endangers
the integrity of the entire system. All jobs are aborted and the
system immediately begins to dump and reload the monitor. A message
of the following form is printed on the CTY:
A-2
DECnet-10 STOPCODES
?CPU1 monitor error. Stopcode name is D36
Job jobn on TTYnnn running name User [PPN]
UUO is octal representation at user PC address
XXXXXX - message
Where:
jobn is the number of the job causing the error.
nnn is the number of the controlling TTY.
name is the name of the program running for that
job.
PPN is the project-programmer number for that
job.
octal is the octal representation of the monitor
representation call failing for that job.
address is the value of the program counter for that
job.
XXXXXX is a mnemonic identifying the error.
message is the stopcode message.
Example:
?CPU1 monitor error. Stopcode name is D36
Job 46 on TTY103 running DDT User [10,5535]
UUO is 47000777776 at user PC 002644
COM911 - The date is past 9 November 2021
A.2 LIST OF STOPCODES
Name Type Message and Explanation
COM911 HLT The date is past 9 November 2021
The two-byte Julian half-day field in an
event message is limited to 9 November 2021.
The routine above calculated the Julian
half-day, and found that it overflowed. It
is unlikely that the date itself really went
past 2021. An AC was probably destroyed, or
the routine to get the time from the monitor
is returning invalid information.
A-3
DECnet-10 STOPCODES
Name Type Message and Explanation
COMAFB CHK A free block pointer is bad
There is a block on a free list, most likely
just added to the list, whose address is not
in the expected range. The offending pointer
is in P1. A subroutine whose address is on
the stack is probably returning a block to
the wrong free list, or is returning an
invalid pointer.
COMCHA CHK Number of available FB blocks to large
When checking the CH begstr for a type of
block, the code determined that more blocks
were available than there were originally.
DNCHFB is supposed to defend against this.
CHNUM was probably trashed.
COMCHB CHK CH pointer off by a few
A pointer internal to the core management
routines is off by a few words. You have
probably trashed an AC by adding to it or
XORing some bits.
COMCHO CHK CH pointer out of range
In the core block checking routines, the
internal pointer to the CH begstr applying to
this type of block is bad. Your executable
code was probably trashed.
COMCID CHK Couldn't initialize DECNET
SCTINI found some reason to object to the
DECnet environment. See SCTINI for reasons
why it takes a non-skip return.
COMDNP CHK DNGPOS called with bad MS
In range checking the ac MS, its contents
were outside the range of addresses used for
the MS block. Trace back to the caller and
find out why it has a junk pointer.
COMFBA CHK FB available count is wrong
DNCHFB walked through a free list and found a
different number of blocks on the list than
the header indicated. A forward pointer was
probably destroyed in a previously returned
block.
A-4
DECnet-10 STOPCODES
Name Type Message and Explanation
COMFBB CHK FB in data base is off by a few
DNCHFB found a block on a free list, most
likely just returned, whose address is not on
a block boundary for blocks on this free
list. The offending pointer is in P1. A
caller on the stack is probably returning a
junk pointer, either a real pointer to a
block that has been incremented or
decremented, or a completely junk pointer.
COMFBF CHK FB is already on free list
The block that P1 points to is already on the
free list and is being returned again. A
caller on the stack is returning a block that
is already free.
COMFBO CHK FB pointer is out of range
When checking a free block pointer, the code
found that the pointer is not pointing to the
free core allocated for this type of block.
Identify the routine that supplied this
pointer.
COMFBT CHK FB pointer is off by a few
A free block pointer is off by a few words.
The user of this pointer probably added a
constant, and forgot to restore it when
returning the block. Trace the user of this
pointer, and make sure the pointer is valid
when given to the memory manager.
COMFWZ CHK Tried to free words at zero
DNFWDS was called with a pointer of zero.
COMIEL CHK Illegal end of list pointer
CHAVL, the available count, said there was at
least one block on the free list, but the
first pointer was zero. A forward pointer
was probably destroyed in a previously
returned block.
COMMMI CHK Memory manager must be initialized
The field CHBOT, which indicates where a free
core pool starts, is zero. This field gets
set when the core manager is initialized. If
DNINIM has already been called, check to make
sure it is initializing all CH blocks.
A-5
DECnet-10 STOPCODES
Name Type Message and Explanation
COMMMS CHK Bad pointer passed to memory manager
When DNGWDS gives out a block of core, it
leaves a check word immediately before the
first word of core given to the user. This
word contains the length of the block, and a
"check" quantity to verify that this block
contains what is expected. This bug means
that the check word has been trashed, or the
pointer that was passed to the memory manager
is bad.
COMMPR CHK Message pointer check
DNFMSG caller tried to return a piece of
memory that is not in the range of message
blocks. See stack for caller and find why it
is trying to return a bad message block.
COMMS1 CHK Bad pointer passed to memory manager
Header word trashed or bad pointer.
COMMS2 CHK Bad pointer passed to memory manager
Header word trashed or bad pointer.
COMMS3 CHK Bad pointer passed to memory manager
Header word trashed or bad pointer.
COMMTS CHK New message block too short
COMMZP CHK DNMINI was passed a zero pointer
A caller probably meant to ask for zero bytes
of user data in T2 and mistakenly put the
count in T1. T1 is supposed to contain the
pointer to the message block being refreshed.
Find caller on the stack and fix it.
COMODP CHK DNGOPS called with bad MS
In range checking the ac MS, its contents
were found to be outside the range of
addresses used for the MS block. Trace back
to the caller and find out why he has an
invalid pointer.
A-6
DECnet-10 STOPCODES
Name Type Message and Explanation
COMSCO HLT Section 1 assertion failed
This code is supposed to be running in
section one or greater, yet the TESTS1 macro
found code running in section zero. Look on
the stack for the address of the TESTS1 macro
that detected the fault. Find the code that
fell into section zero and fix it.
COMSTB CHK Smear request too big
The caller requested that a very large block
be smeared. Find out what the caller really
wanted to smear and fix the call.
LLIAAL CHK Arg blk to NSPACC wrong length
LLIAK2 CHK Duplicate msg put on ACK queue
LLICGT CHK Can't DNMINI a msg blk
DNMINI refused to initialize a message block.
This should never happen when the number of
bytes requested is zero. There is probably
something wrong with the message block, its
pointer, or DNMINI.
LLICLS CHK Tried to close in non-pre-close state
LLIDDP CHK Tried to destroy non-DP port
LLIDIR CHK Duplicate Interrupt Message Received
The code found a duplicate interrupt message
on the unacked interrupt receive queue. One
should never get this message because the
code is not allowed out of the NSP interlock
with anything in this receive queue.
Identify the problem. Either the interrupt
flow control malfunctioned and sent more than
one data request, or the remote node sent an
interrupt message without a data request.
LLIFNS CHK SCTL passed bad NSPpid
LLIFZM CHK Tried to free zero msg
LLIHTG HLT INIHSH cant get a hash table
LLIHTS HLT NSPHTS not set up
A-7
DECnet-10 STOPCODES
Name Type Message and Explanation
LLIIFC CHK Illegal flow control type
LLIILI CHK Interrupt message must not be segmented
LLIIVO CHK Illegal call vector offset
LLILMA CHK RETBUF left LAR # LMA
LLINNI CHK NSP not yet initialized
NSP (LLINKS) will reject all messages
received from either Session Control or
Router until DECnet initialization is
complete.
LLINNP CHK No memory for reserved NDB
LLINRP CHK No memory for reserved ports
LLIOAL CHK OPEN arg blk wrong length
LLIODN CHK NSIODN got message with NMACK=0
LLIORC CHK ORC should never be negative
LLIPIM CHK PROCXQ found illegal message type
LLIQIN CHK Queued interrupt message illegal
LLIRFN CHK NSP called RESPRC with bad fcn code
LLINKS's reserved port handler was called
with an unknown Session Control function code
in T3. If there is a new Session Control
function code and this routine doesn't know
about it, the function code must be added.
Otherwise, look on the stack to find which
LLINKS routine called Session Control with an
invalid function code. An occurrence of this
stopcode indicates that the version of LLINK
and Session Control are skewed.
A-8
DECnet-10 STOPCODES
Name Type Message and Explanation
LLIRMG CHK NSP called RESPRC without msg blk
LLINKS's reserved port handler was called
with no message block pointer; T4 is zero.
Look on the stack to find which LLINKS
routine called Session Control with T4
containing zero.
LLIRMH CHK RMVHSH didnt find port
LLIRQ2 CHK Duplicate msg requeued
LLIS2S CHK Illegal flow control at PRCRQS
LLISCM CHK ELSCM should not have been set
LLISIF CHK SENDC0's DNMINI failed
LLITNE CHK Unknown Event Type at NSPEVT
T1 contains an illegal NSP event type. Note
that NSPEVT is called by SCLINK as well as
LLINKS. Caller address is on the stack.
LLIWNE CHK Can't get event arg blk
There isn't any free memory for an event
argument block. Presumably it really ran
out, but some may have been lost. Either
allocate more free memory or accept that some
events will be lost.
LLIXM2 CHK Duplicate msg queued for xmit
LLIXNN CHK NSP not yet initialized
LLIXR2 CHK Duplicate msg requeued for xmit
LLIXVO CHK Illegal Router call
LLIXZM CHK NSP called with no message block
NRTBPM CHK Bad pointer passed to memory manager
NRTFW0 CHK Tried to free words at zero
A-9
DECnet-10 STOPCODES
Name Type Message and Explanation
NRTHBC CHK NRTHBR should never be called
NRTILS CHK NRT link in unexpected state
NRTINP CHK NRT Input to DECnet failed
NRTOUD CHK NRT output to DECnet failed
NRTPCL CHK Partial Configuration Msg Loss
NRTSAB HLT No memory for NRT's SAB
NRTSET CHK SCTPSQ returned wrong channel info
NRTSJB HLT No memory for NRT's SJB
NRTSJM HLT No memory for NRT's SJB
NTMBCF CHK Bad coded field on output
While formatting output for a SHOW, the
program was requested to generate a Coded
field of more than one byte. The program is
not coded for this function. Look at the
descriptor block pointed to by NT. Check to
see if this item is supposed to be a multiple
byte Coded. If not, fix the item's entry.
If it is correct, write the code to handle
multiple-byte Coded fields.
NTMBCX CHK Bad call to NMXXND
A "layer" (any routine described in NMXDSP)
that handles information in Router's routing
vector was called. All the information in
this vector is supposed to be read only, but
it was called for a set or clear function.
Look at the descriptor block pointed to by
the AC NT, and determine which item caused
this layer to be called. Then fix the item's
entry to indicate that this is a read-only
parameter.
NTMBDL CHK Bad multiple byte length
The code generates output for a numeric
field, and was asked to generate an illegal
number of bytes.
A-10
DECnet-10 STOPCODES
Name Type Message and Explanation
NTMBFP CHK Bad format type encountered
While the program was in the process of
reading a value from the user string, the
descriptor tables returned an invalid format
for this item. The AC NT points to the
descriptor for this item, and field NTSEQ
should tell which item is being referenced.
Fix the entry for this item so it contains a
valid format type.
NTMBLI CHK Bad Line id
Router gave an error return when asked for
the state of a circuit. The only valid error
return from this routine is due to a
nonexistent circuit.
NTMBSS CHK Bad string size in NMXNI4
When attempting to copy an identification
string from NMXVAR into a freecore block, the
string claimed to be too long to fit in
either block. Find out how this byte
(containing the length) got trashed.
NTMCNO HLT Circuit name overrun
More than 16 bytes of data were returned to a
16 byte field. The data beyond the buffer
was trashed. Examine the algorithm at NMXC2N
to determine why the code returned more bytes
than were expected. To avoid this halt, fix
the above code to check for overrun while it
is producing the bytes.
NTMDVI CHK NMXDSP value illegal
The code called a layer to obtain a value or
set a value for an item. The routine value
in the descriptor block pointed to by NT was
illegal. Examine the data structure pointed
to by NT. Probably this was caused by a
trashed NT, since the descriptor block
generation macros are supposed to range check
this value.
NTMEOR CHK Entity type out of range
While double-checking the entity ID, before
dispatching on it, the code found the type
value was illegal. Since the value supplied
by the user is checked at GETBLK, this means
that field NXENT was trashed.
A-11
DECnet-10 STOPCODES
Name Type Message and Explanation
NTMESL CHK Event string too long
The code received an event from a DECnet
layer, and the length of the data string was
too long to fit in the storage block. Either
increase the size of .NQMXS or cause the
DECnet layer to return a smaller string.
NTMFOR CHK Format out of range
In formatting output for a SHOW, the format
block for this item had an illegal format
type. See NTMBFP.
NTMFUR CHK Function code out of range
The code is going to dispatch by function
code, and found that the function code is out
of range. Since the function code supplied
by the user is checked in GETBLK, this means
that field NXFNC was trashed.
NTMILI CHK Invalid Line ID
NMXDLL was called to perform a function for a
line, and the previously validated line ID is
bad. The probable cause is that something is
trashing NXNUM.
NTMILN CHK Illegal number size
The code is going to read a numeric value
from the user's string. The format
descriptor block for this item specified read
of an illegal number of bytes.
NTMINT CHK Invalid numeric type
The code is generating output for a numeric
field, and was asked to generate something
other than decimal, hexadecimal or octal.
NTMKOR CHK Kontroller out of range in Circuit-id
The Kontroller field in a line-id is out of
range. The value LD.MAX defines the number
of Kontrollers known by D36PAR, and thus by
NTMAN. The most likely cause of this error
is a trashed AC.
Note: A Kontroller is any device driver with which
Router will interface. It is used to define
the name of a circuit/line, under the
assumption that each Kontroller will control
only a single line type.
A-12
DECnet-10 STOPCODES
Name Type Message and Explanation
NTMNEC CHK No error code, with error return
Some routine took the non-skip return, but
did not give an error code by calling NTExxx.
This means that the program returned to top
level and field NXERR was zero. Determine
which routine is failing, and make the error
return give an error code.
NTMNTR CHK Node type is out of range
The code was going to select entries to
return (for function .NTSHO) and needs to
know the node type (executor, remote, or
loop) in order to choose the correct one.
For other entities (circuit, lines) this
field should contain zero. This field is set
by ENTCVT.
NTMSOR CHK Selection criteria is out of range
The code is going to select items to return
(for .NTSHO) depending on the selection
criteria, and found the criteria to be out of
range. Fix the check in GETBLK or find out
why field NXSEL is being trashed.
NTMSRF CHK Skipness of return fouled up
The code returns from NTMAN with a skip
return, but there is an error code stored in
field NXERR. Identify the caller that is
giving the error code (or trashing NXERR) and
make it give a non-skip return.
NTMSSB CHK Setting a circuit substate
Setting a substate is illegal. This entry
should be read-only in the descriptor block,
and the code should have caught this before.
Make the entry in the descriptor block be
read-only.
NTMURE CHK Unrecognized entity type
NTMAN received an event from a DECnet layer,
and the entity type is not legal. Find the
routine that generated the event and cause it
to supply a legal entity type.
A-13
DECnet-10 STOPCODES
Name Type Message and Explanation
NTMXNL CHK ROUTER doesn't know about a line
The code asked router for the state of a
circuit, and router gave an error return.
The only valid failure is for a non-existent
circuit. The code should have previously
checked the circuit ID for existence at
ENTCVT.
ROUBCB CHK Bad circuit block pointer
A Kontroller called RTRDSP with a function
requiring a circuit block pointer and
supplied a pointer (in T2) that failed the
range check. Find out which Kontroller is
supplying the bad circuit block pointer.
ROUBCD CHK Bad Checksum detected when building routing
msg
This stopcode indicates that something got
trashed. Look at P1; it points to the end
of the normal routing vector
[RTRNRV]+[RTRMXN]. Check the vector itself
(pointed to by RTRNRV) and see if the
topology appears reasonable. Make sure
RTRCKS is less than 16 bits.
ROUBMB CHK Bad message block pointer
A Kontroller called RTRDSP with a function
requiring a message block, and the pointer
supplied (in T3) is either 0 or out of range.
Determine why the Kontroller gave an invalid
pointer. The pointer should originally have
been obtained from this module.
ROUBNA INF Bad node address in Phase II NI message
ROUBSN CHK Bad source node in message from NSP
ROUBTF INF Bad Test message format
ROUBTM INF Bad Hello or Test message
A-14
DECnet-10 STOPCODES
Name Type Message and Explanation
ROUCGE CHK Couldn't get emergency buffer for circuit
ROUTER requires that the memory manager save
at least 2 buffers per circuit for ROUTER,
one for the routing message ROUTER keeps for
each circuit and one to guarantee some level
of route-through ability. ROUTER was asked
to open a circuit, but the memory manager
could not guarantee the buffers. Allocate
more memory or settle for fewer circuits.
ROUCGV CHK Couldn't get memory for event arg block
ROUCNL CHK Trying to call non-existent NSP
ROUDGE CHK Didn't get reserved emergency msg blk
The code should never run out of emergency
blocks. ROUTER should allocate enough blocks
and then use no more. Either ROUTER hasn't
allocated enough emergency blocks or has used
too many. If too many, they are probably in
some input queue. Find all calls to DNGEMS
and DNMINP and find who used too many.
ROUEBI CHK Emergency circuit buffer already in use
ROUEHB CHK No Message Block for Event data
ROUEHM CHK No Message Block for Event data
ROUIKF CHK Illegal Kontroller function
CALKON was called with an illegal function
code. The only allowed values are KF.QOB,
KF.INI, and KF.HLT.
ROUILF CHK Illegal function code from Kontroller
ROUILS CHK Illegal Circuit Specified in NSP msg
ROUIVL CHK Invalid circuit state
ROUMMR INF Maintenance Message received
ROUNLN CHK Trying to return msg to non-local NSP
ROUNMR CHK NMX out of range
A-15
DECnet-10 STOPCODES
Name Type Message and Explanation
ROUNOR CHK Node number out of range
ROUNSD CHK Tried to call non-existent device driver
ROUNSO CHK NSP sent out-of-range packet
ROURML CHK Stored routing message format error in RTRRCR
ROUSMR INF Start Message received
ROUSOR CHK Setting state out of range
ROUUER CHK Unexpected end of routing message
ROUUET CHK Unknown event type in RTNEVT
ROUWPV CHK Phase II Node Verif received in wrong state
ROUWSP CHK Phase II Node Init received in wrong state
ROUXNZ CHK R2NCAL called with MB=0
ROUZXT CHK Tried to free msg with MB=0
SCLBFS CHK Bad format type not caught
SCLBNS CHK Bad Node Number in SC Initialization
The node number used as the local node number
during initialization is out of range. The
quantities that are compared are derived from
the MONGEN variables %RTADR and %RTMXN.
Either choose a different node number for the
local node, or increase the size of your
network to accommodate your node number by
modifying %RTMXN.
SCLCIM CHK NSP called SCTLCI without a msg blk
SCLFCT CHK Illegal function in call from NSP
SCLFMZ CHK Tried to free message with MB zero
SCLGTN CHK Global connect timer count went negative
A-16
DECnet-10 STOPCODES
Name Type Message and Explanation
SCLICR CHK Negative buffers reserved, from input
LLINKS sent a buffer to SCLINK's NSFDR
routine. This routine decremented the number
of buffers reserved for the appropriate
logical link and the count went negative.
Either LLINKS offered too many buffers or the
count DCNRSB was decremented or zeroed
prematurely.
SCLILS CHK Illegal State at SCSSTS
Session Control's Set Status routine was
called with an illegal status code. SCSSTS
should only be called from the NEWSTATE
macro, which should be incapable of
generating an illegal state code. Look on
the stack to see who called SCSSTS and fix
it.
SCLISU CHK Illegal SL at SCTINU
After a Session Control function was
complete, register SL no longer held a value
for the SLB pointer. Find out which routine
in SCLINK smashed SL.
SCLJTN CHK Job connect timer count went negative
SCLMF1 CHK SNDDRM failed to send DRQs
The code should never fail to send data
requests when a message block already exists.
SCLMF2 CHK SNDDRM failed to send DRQs
SCLMI1 CHK DNMINI failed to re-init an MB
SCLMIF CHK DNMINI failed to init msg blk
SCLNCP CHK No CBLOCK pointer in SJB
SCLNMB CHK NSP called SCTL without a msg blk
SCLNRD CHK No resources to send DRQs in SCCCR
A-17
DECnet-10 STOPCODES
Name Type Message and Explanation
SCLNZE CHK Passing zero error code to SCMUUO
The code arrived at a routine that is
supposed to store an error code for the user,
but found that the error code is zero. This
is an illegal value. Find which routine
called SCTNIE with T1 containing zero and
correct the caller's behavior.
SCLOCR CHK Negative buffers reserved, from output
LLINKS sent a buffer to SCLINK's Output Done
routine. This decremented the number of
buffers reserved for the appropriate logical
link and the count went negative. Either
LLINKS returned too many buffers or the count
DCNRSB was decremented or zeroed prematurely.
SCLSBJ CHK Bad Job Block Pointer Passed to SCTNSF
SCLSIM CHK Got a segmented interrupt message from NSP
SCLSJR CHK SCMUUO called NSFJR in SCLINK
SCLSJS CHK SCMUUO called NSFJS in SCLINK
SCLSLB CHK SLB bad at FRESLB
There is no Session Control Job Block (SJB)
for this Session Control Link Block (SLB).
This error could have happened at any time
during the life of the link, after it
actively transferred data.
SCLSMS CHK STRMAT messed up the stack pointer
SCLSNM CHK No Message Block supplied to SCTNSF
SCLSNS CHK Sblock not supplied to NSFIS
SCLSPF CHK SLB self pointers messed up in FNDSLB
SCLSPM CHK Self pointers messed up in SLB
SCLSPS CHK SLB Self pointers messed up in SLBMAT
SCLSTM CHK Trying to start a CI timer that's already
going
A-18
DECnet-10 STOPCODES
Name Type Message and Explanation
SCLTFJ CHK Freeing SJB with SLB entries existing
SCLTFS CHK Tried to free wrong SLB
SCLWVS CHK Incoming connect with wrong Session Control
version
SCLZST CHK Illegal state value at SCTNIU
The SCLINK error handler found that the state
code in this link's SLB was illegal. This is
just a gateway check to see if something in
SCLINK is wrong. Find the function code in
the SAB and trace the probable flow from that
function code.
SCMAAE CHK Address Check after Function Call
SCMBCN CHK Bad channel number
The channel number obtained from the SLB
field SLCHN does not match the channel number
expected by the code. This probably means
that the interlocks are not correctly
arranged, and the SLB has changed.
SCMNP2 CHK No SJB for SCTPSI
SCMNPD CHK No PDB for Job
A-19
DECnet-10 STOPCODES
A-20
APPENDIX B
GALAXY-10 STOPCODES
B.1 STOPCODE DEFINITIONS
An alphabetical list of the GALAXY-10 stopcodes is presented on the
following pages. The list shows the name of each stopcode, the module
in which it is found, the stopcode message (for which the name is a
mnemonic), and an explanation.
Each GALAXY component is made up of one or more modules, thus a
stopcode can be generated by a module with a name other than that of
the component producing the stopcode. See example on page B-2.
When GALAXY encounters an internal error, a stopcode is generated. A
message of the following form appears in the operator log file,
followed by the contents of the ACs and the last 9 stack locations.
?Stopcode - XXX - in module module on date on time
Reason: message
Program is program name version n(nnnn) using GLXLIB version
n(nnnn)
Crash block starts at location address
Last GLXLIB error: ## (message)
Where:
XXX is the mnemonic identifying the error.
module is the module in which the stopcode occurred.
date is the date on which the stopcode occurred.
time is the time at which the stopcode occurred.
message is the stopcode message.
program
name is the program running for that job.
n(nnnn) is the version number.
address is the location of the crash block.
## is the number of the last GLXLIB error that
occurred.
B-1
GALAXY-10 STOPCODES
Example:
?Stopcode - PQI - in module QSRT10 on 23-Feb-84 on 18:43:17
Reason: Prime Queue is Interlocked
Program is QUASAR version 4(1173) using GLXLIB version 1(1161)
Crash block starts at location 674000
Last GLXLIB error: 23 (End of list reached)
Contents of the ACs:
0/ 777777777777 3 61353 1
4/ 63377 0 0 10000000
10/ 16 637163000000 0 140421
14/ 0 141577 140 777501063716
Last 9 stack locations:
-1(P)/ 312000630517 -2(P)/ 312 -3(P)/ 312000061244
-4(P)/ 312000017227 -5(P)/ 312000630517 -6(P)/ 312
-7(P)/ 312000017226 -8(P)/ 312000064261 -9(P)/ 0
B.2 LIST OF STOPCODES
Name Module Message and Explanation
ABS GLXSCN Atom buffer too small
The command from OPR is too long to fit in
the Atom buffer for parsing.
AIE QSRSCH Attempt to add invalid event queue entry
S$EVENT detected that the entry to be added
to EVENT QUEUE is not the correct size.
AMT QSRMDA Allocated is more then total (VOL .VLVSL
BLOCKS)
SCNVOL detected that the number of words
allocated for VOL block pointer is greater
than the total number of VOL blocks.
APT GLXINT Unknown APR trap at PC <pc> APR CONI = <octal
CONI word>
ASE GLXMEM Addressing space exhausted
B-2
GALAXY-10 STOPCODES
Name Module Message and Explanation
AZA GLXCOM Attempt to zero the ACs
Bad argument(s) passed to routine .ZCHNK.
BBF PLRLBP Bad backspace file
Incorrect TCB status detected backspacing a
file on tape.
BBR PLRLBP Bad backspace record
Incorrect TCB status detected backspacing a
record on tape.
BCN PLRLBP Bad call to nxtfil
Routine NXTFIL was called to skip to the next
file's HDR1 label, but the TCB status
indicates that the tape is not positioned in
user data.
BCP PLRLBP Bad Call to POSTAP
BDS GLXSCN Bad Default String
The first character in the default string
($DEFAULT) is a null.
BFC GLXSCN Bad function code
An invalid parse function code was detected
in routine S%CMND.
BLI QSRMDA <text>
The BLISS routines called by QUASAR detected
an error that warranted a stopcode; "text"
is the reason returned by the BLISS routine.
BME QSRMDA 'B' Matrix Entry is Missing
RETBMA called D$BMTX to find a user's 'B'
matrix entry, but there is no corresponding
'B' matrix entry.
BPN GLXMEM Bad page number <page number>
VALPAG determined that a page is not part of
the initial core image or is not marked in
use.
B-3
GALAXY-10 STOPCODES
Name Module Message and Explanation
BRS QSRFSS BAD REQUEST SIZE
The argument passed to routine GETDPA is not
in the range 1 to 1000 (octal).
BTA GLXTXT Bad $TEXT argument given at address <address>
BTF GLXSCN Bad table format
TABLK detected two identical entries in a
table. Table entries must be unique.
BTT GLXKBD Backing up terminal twice
GLXKBD only stores the current character.
The previous character cannot be retrieved.
CAC GLXMEM Count of Available Pages Confused
M%ACQP detected that PAGSTA points at or past
the top of memory.
CAD CDRIVE CANNOT ADD/DELETE READER TO/FROM INTERRUPT
SYSTEM
The PISYS. UUO failed in routine INTCNL.
CAS PLRDSK Can't Append to SPT list
CCD PLRT10 Can't Change Density
The call to I$SDEN for setting the density of
a tape drive took the error return in I$NDEN.
CCE ORION Can't create list entry
The call to L%CENT in ADDNOD failed to create
a list entry.
CCE QSRIPC Can't create list entry
C$SEND was unable to create a list entry in
the RESEND queue list of IPCF messages to be
re-sent.
B-4
GALAXY-10 STOPCODES
Name Module Message and Explanation
CCI SPRINT Cant clear UFD Interlock
The SETUUO UUO failed to clear the UFD (User
File Directory) interlock in routine CLRUFL.
CCP GLXMEM Cannot create page
The PAGE. UUO failed in routine CREPAG.
CCR PLRTAP Can't Check Ring status
The TAPOP. UUO in T$WRCK failed when
checking for write ring status.
CCS CDRIVE CANNOT CLOSE SPOOL FILE
F%REL failed to close the spooled reader file
in CREATE.
CCT PLRTAP Can't connect tape to PSI system
In T$OPEN, the call to I$PICD failed to
connect the tape drive to the PSI interrupt
system in order to trap off-line, resulting
in hung device conditions.
CCW PLRT10 Can't Clear Watch bits
The SETUUO UUO took the error return in
routine I$INIT.
CDC PLRT10 Can't Determine Density capabilities
The TAPOP. UUO took the error return while
performing the .TFPDN function in routine
I$PDEN.
CDC QSRT10 Can't get Disk Characteristics for Unit <unit
name>
The DSKCHR UUO failed in routine I$GATR.
CDD QSRT10 Can't Determine Tape Densities
The TAPOP. UUO failed while performing the
.TFPDN function in routine I$GATR.
CDK PLRT10 Can't Determine Kontroller type
The TAPOP. UUO took the error return while
performing the .TFKTP function in routine
I$PDEN.
B-5
GALAXY-10 STOPCODES
Name Module Message and Explanation
CDM GALGEN Cannot Determine Monitor Type
The GETTAB UUO failed trying to determine
monitor type.
CDT QSRT10 Can't Determine Tape Track Status
The TAPOP. UUO failed while performing
function .TFTRK in routine I$GATR.
CEI BATCON Can't enable interrupts
The PISYS. UUO failed in routine SYSINI.
CFC GLXMEM Count of Free Pages Confused
GLXMEM's database is corrupt.
CFF SPRINT CAN'T FIND FILES TO LOAD
In EXECUTE, SPRINT could not position to the
head of the list of files necessary to
generate an "execute" command.
CFO ORION Cannot GETTAB operator PPN
CFU QSRT10 Can't Find UCB for Unit <unit name>
In I$ISTR, QUASAR was unable to find the UCB
(Unit Control Block) corresponding to the
system structure identified.
CFV QSRMDA Can't Find VSL Address in VOL Entry
In DELBSL, there is no link from a VOL
(volume) block back to the VSL (Volume Set
List). A link should have existed because
the VOL block was using a link in the VSL
pointing to the VOL block.
CGC CDRIVE Cannot Get Reader Hardware Characteristics
DEVOP. UUO failed in INPGET while trying to
obtain reader characteristics.
CGC QSRT10 Can't Get Controller Type for Tape Drive
<tape drive>
TAPOP. UUO failed while performing function
.TFKTP in routine I$GATR.
B-6
GALAXY-10 STOPCODES
Name Module Message and Explanation
CGD PLRT10 Can't Get Density
TAPOP. UUO took the error return while
performing the .TFDEN function in I$GDEN.
CGD QSRT10 Can't get Disk Physical Unit
SYSPHY UUO failed in routine I$INIT.
CGF ORION Cannot GETTAB FRCLIN line number
CGP GLXIPC Can't Get a PID
C%INIT callled C%CPID to create a PID
(Process ID) and C%PID was unsuccessful.
CGS CDRIVE Cannot Get Spool File PPN
GETTAB UUO failed in routine RDINIT.
CGS PLRT10 Can't GETTAB States word
The GETTAB UUO took the error return in
routine I%OPRP while trying to get the %CNSTS
word from the monitor.
CGS QSRT10 Can't Get Status of Tape Drive <tape drive>
The TAPOP. UUO failed while performing
function .TFSTS in routine I$GATR.
CIF GALGEN Command Initialization Failed
The call to SCMND returned FALSE in GETANS.
CLS GLXKBD Can't lookup status of terminal JFN
The FILOP. UUO in routine K%OPEN failed
while performing the .FOGET function for a
terminal. Location CHNJFN contains the
channel number.
CME QSRMDA 'C' Matrix Entry is Missing
D$DLCK called D$CMTX to find a user's 'C'
matrix entry but the entry does not exist.
B-7
GALAXY-10 STOPCODES
Name Module Message and Explanation
CMU PLROPR Can't Make TCB
The call to G$MTCB returned FALSE in I$CREC.
CMV PLROPR Can't Make TCB
The call to G$MTCB returned FALSE in I$CUNL.
CNE ORION Central site node not present
The call to FNDNOD in W$NODE returned a
failure while using G$HOST as an argument.
COP QSRT10 Cannot Open Prime Queue
The FILOP. UUO failed in I$OQUE when QUASAR
was trying to open the master queue file.
COR QSRT10 Cannot Open Redundant Queue
FILOP. UUO failed in I$OQUE when QUASAR was
trying to open the secondary queue file.
COS CDRIVE CANNOT OPEN SPOOL FILE
F%OOPN returned an error that was not 'file
already exists' in GETFIL.
CPF PLRT10 Clear label Parameters Failed
TAPOP. UUO took the error return in I$CLLP
while performing the .TFLPR+.TFSET function.
CRB PLRT10 Can't Read Buffer size
TAPOP. UUO took the error return in I$RDLP
performing the .TFBSZ function.
CRD QSRQUE CREATE REJECTED DEFER DATA
In routine Q$DEFER, the call to Q$CREATE
detected errors.
CRL GLXFIL Can't read last byte of file
CRL QSRQUE CREATE REJECTED LOGOUT DATA
The call to Q$CREATE in Q$LOGOUT detected
errors.
B-8
GALAXY-10 STOPCODES
Name Module Message and Explanation
CRM PLRT10 Can't Read user's Mode
The TAPOP. UUO took the error return in
routine I$RDLP while performing the .TFMOD
function.
CRM QSRQUE CREATE REJECTED MODIFY
The call to Q$CREATE in Q$MODIFY detected
errors.
CRS QSRQUE CREATE REJECTED SPOOLING DATA
The call to Q$CREATE in Q$SPOOL detected
errors.
CRS SPRINT Cant read searchlist
This stopcode indicates one of two
conditions. Either the JOBSTR UUO failed in
GETSRC while trying to read SPRINT's current
search list, or the PATH. UUO failed in
GETSRC while trying to read SPRINT's current
path.
CSB PLRTAP Can't Set Blocksize
CSD PLRTAP Can't Set Density
CSI GLXINT Cannot set up interrupt system
The PIINI. UUO failed in routine SETINT.
CSI PLRTAP Can't Set Industry compatible mode
CSM PLRTAP Can't Set DIGITAL compatible Mode
CSS QSRT10 Can't get System Structure List
The SYSSTR UUO failed in routine I$ISTR.
CSS SPRINT Cant set searchlist
This stopcode indicates one of two
conditions. Either the STRUUO UUO failed in
SETSRC trying to set SPRINT's search list, or
the PATH. UUO failed in SETSRC trying to set
SPRINT's path.
B-9
GALAXY-10 STOPCODES
Name Module Message and Explanation
CST OPR Can't set timer for parsing
The call to I%TIMR returned FALSE in SETIME.
CSU PLRTAP Can't Switch Units
The TAPOP. UUO failed in T$NUNI when trying
to switch tape drive units.
CTL GLXFIL Cannot trim LSN in buffered mode
F%IBUF does not handle Line Sequenced
Numbered files. F%IBYT must be used.
CUD QSRFSS CLEARING UNUSED DPA
QUASAR tried to release unused space in the
failsoft file.
CUF PLRT10 CHKACC UUO Failed
The CHKACC UUO failed in routine I$CKAC.
CUT OPR Can't unset timer after parsing
The call to I%TIMR returned FALSE in CLTIME.
CWT PLRTAP Can't Write Tape-mark
DBC ORION DeBug Crash - Keep this crash
Execution continued at the location following
a $DEBRK macro in an interrupt service
routine.
DDF ORION Delete DN60 node failed
A call to L%DENT returned FALSE in DELNOD.
DSP ORION Delete send Failure pid table entry
inconsistency
The call to CHKFSL in DELSPL failed to find
an entry in the "send failure PID table."
DTL QSRFSS DPA TOO LARGE
VALDPA detected a Disk Page Address for the
failsoft file that is too large.
B-10
GALAXY-10 STOPCODES
Name Module Message and Explanation
DTS QSRFSS DPA TOO SMALL
VALDPA detected a Disk Page Address for the
failsoft file that is too small.
DTU GLXINT Date/Time unavailable
The GETTAB UUO to get Universal Date/Time
failed in routine I%NOW.
DUF GLXINT DEBRK UUO failed
EEP QSRT10 ERROR EXPANDING PRIME QUEUE
The FILOP. UUO failed in routine I$WRIT.
EER QSRT10 ERROR EXPANDING REDUNDANT QUEUE
The FILOP. UUO failed in routine I$WRIT.
EWS CDRIVE ERROR WRITING SPOOL FILE
The call to F%OBUF took the error return in
OUTCRD.
FCE GLXMEM Free count exceeds FREINI
The current count of free pages exceeds the
initial count of free pages.
FCN GLXMEM Free count negative
Routine REDUCE detected that the count of
free pages went negative.
FFT GLXKBD Action FILOP. failed to terminal
The FILOP. UUO failed in K%OPEN while trying
to perform either the .FOSET or the .FOWRT
function.
FIT GLXFIL FD location requested with illegal type.
Routine F%FD was called with illegal
arguments.
FSE GLXKBD File System Error
TXTINP detected an error returned from F%IBYT
that was not an EOF error.
B-11
GALAXY-10 STOPCODES
Name Module Message and Explanation
FUD QSRFSS FOUND UNUSED DPA
An unused DPA (Disk Page Address) indicates
that the failsoft file system database is
corrupt.
GNF PLRT10 GETTAB for user's Name Failed
GOF GLXIPC SYSTEM GOPHER IS NOT AROUND
In C%INIT, GETTAB to get [SYSTEM]GOPHER's PID
failed.
GSF PLRT10 GETTAB for Serial number Failed
IAC OPR Argument count <count> not valid in display
message
An argument block of zero was found in a
message from ORION.
IAM QSRT10 Invalid Account Validation Message Returned
In I$VACT, the call to A$OB2Q was unable to
find the queue header for the object type
passed in the account validation ACK
(acknowledgement) message.
IBN GLXSCN Illegal base for number
The base for a number to be parsed was not in
the range 2-10 (decimal).
IBP GLXKBD Illegal byte pointer in K%TXTI
The byte pointer that CONVBP was going to
convert is zero. This invalid byte pointer
was found at RD+.RDDBP.
IBS GLXFIL Illegal byte size given
An invalid byte size, out of the range 1-36
(decimal), was given in a call to open a
file.
IBU BATCON Illegal BATCON UUO
In BATCON's LUUO handler, UUOCON, an opcode
was detected that was out of range.
B-12
GALAXY-10 STOPCODES
Name Module Message and Explanation
IDM OPR Message argument type <argument type> not
valid for display message
The argument type was something other than
the argument type constant, .CMTXT.
IDM OPRLOG Invalid Display Message Type <msg type>
IDM PLRLBP Invalid Date from Monitor
IEC OPR Invalid error code for failure
An OPR failure error code is not in the range
expected in routine SETFAL.
IFC OPRPAR INVALID FUNCTION CODE FROM COMMAND
IFM GLXFIL Illegal file mode in subroutine call
An operation was attempted on a file, but the
file was opened in a mode that prevents the
requested operation from succeeding.
IFN GLXFIL Illegal IFN provided in call
The IFN passed to CHKIFN was not in IFNTAB.
IIF GLXIPC IPCF to interrupt system connect failed
In CPIDI, the PISYS. UUO failed while trying
to connect a job to the interrupt system.
IIP GLXKBD Illegal Input Pointer
CONVBP detected a byte pointer of zero at
RD+.RDIOJ.
IJM QSRADM Interlocked Job Missing
Inconsistency in QUASAR's queue database was
detected in KILPSB.
IJW QSRADM Interlocked Job Wrong
Inconsistency in QUASAR's queue database was
detected in KILPSB.
ILM GLXINT Illegal memory reference at PC <pc>
B-13
GALAXY-10 STOPCODES
Name Module Message and Explanation
IMV QSRMDA Invalid MDR/VSL Forward/Backchain Pointers
NSTUSR detected that a VSL does not contain a
pointer to an MDR. Every VSL should point to
an MDR.
IOS QSRMDA Invalid Owner Specified in Reassign Message
DEASSIGN detected that the job number in the
DEASSIGN message does not match the job
number in the MDR pointed to by the UCB of
the device being deassigned.
IPE PLEASE Internal parser error
IPF PLRTAP Illegal Positioning Function
IPH OPRNET INVALID PROCESS HANDLE TO KILL
IPP OPRPAR Invalid PDB Header in Parse Block
IQN GLXTXT Illegal qualifier number <number> at
<address>
An illegal argument qualifier was used in a
$TEXT macro.
IRF GLXIPC IPCF Reception failure
In RCVMSG, the IPCFR. UUO took the error
return while trying to receive an IPCF
message.
ITD QSRMDA Invalid Tape Density Specified for <tape
drive name>
The density for a tape drive returned in the
.STSTS does not match any of the legal
densities contained in the UCB for that tape
drive.
ITR QSRMDA Invalid Tape Resource Number Returned
VSLRSN detected that the tape resource number
contained in a VSL is zero.
B-14
GALAXY-10 STOPCODES
Name Module Message and Explanation
IVU QSRMDA Invalid VOL/UCB Forward/Backchain Pointers
DSMACK detected that there is not a pointer
to a UCB in a VOL block of a volume that is
being dismounted from a device. When a
volume is mounted, there should be a pointer
in the VOL block to the UCB of the device,
and a pointer in the UCB to the VOL block of
the volume mounted.
IVV QSRMDA Invalid VSL/VOL Forward/Backchain Pointers
D$FOWN did not detect a pointer in a VOL
block back to a VSL when the VOL block was
found by a pointer in a VSL. VSL and VOL
blocks must be doubly linked.
LDF LPTSPL Line Printer Device Status DEVOP. Failed
LEM CDRIVE Lousy error message from D60SIN
An unidentified error code was returned by
D60SIN. S1 = error code.
LGF PLRTAP Label Get Failed
LNA QSRMDA Logical Name Assignment Failed
The DEVLNM UUO failed in REASSI while trying
to assign a logical name to a device.
LNI SPRINT LOG not initialized
LOGTXT was called to put a character in the
log, there is not a LOG page set up for
usage.
LRF PLRTAP Label Release Failed
MCF PLRT10 MTAID. UUO Failed
MDS QSRMEM MOVING DIFFERENT SIZES
QUASAR's queue database is corrupt.
B-15
GALAXY-10 STOPCODES
Name Module Message and Explanation
MQE QSRMDA Missing QE for a pseudo process
D$CHKB detected that there was no QE page
address in the MDR for a batch job in the
input queue.
MST OPR Missing syntax table
MSZ SPROUT Message size too large
NAM QSRMDA Negative 'A' Matrix Entry Computed
The count of an entry in the 'A' matrix went
negative. There cannot be a negative number
of any physical resource.
NBM QSRMDA Negative 'B' Matrix Entry Computed
The count of an entry in the 'B' matrix went
negative. There cannot be a negative number
of allocations (claims) for a resource.
NBR QSRSCH Nextjob'ing bad request
In preparing a "next job" message for an
object, NEXTJB called F$RDRQ to find the
address of the EQ (external queue) page on
disk and the address returned was zero.
NCM QSRMDA Negative 'C' Matrix Entry Computed
The count in a 'C' matrix went negative.
There cannot be a negative number of owners
(sharers) of a device.
NCS OPRNET NO CURRENT SERVER DATA BASE IN SKEW
NDE ORION Node database empty
In DELNOD, it was discovered that the OPR
node database is empty. There must be at
least a central host node.
NEB PLRTAP No Error Bit
Routine RETERR was called, but no error bits
were lit in P1.
NFB CDRIVE FIRST BLOCK IN MESSAGE NOT THE OBJECT BLOCK
B-16
GALAXY-10 STOPCODES
Name Module Message and Explanation
NFP GLXMEM No free pages
M%IPRM was unable to get a free page for an
IPCF receive.
NFV PLRT10 No free PS vectors
I$PICD detected that there are no free
interrupt vectors available.
NGF QSRT10 NECESSARY GETTAB FAILED
The GETTAB UUO in DOGTAB failed.
NIP GLXINT No interrupt is in progress
The DEBRK. UUO took the skip return.
NMF QSRFSS NO MORE FILESPACE
The failsoft file is full.
NUE QSRMDA Null UCB chain encountered
In D$INIT, the call to L%FIRST failed to
return the first UCB block in the UCB chain.
NUV QSRDSP No UCB ptr and No VSL ptr from VOL
MDA's database is corrupt.
NVD PLRT10 No valid density
I$PDEN was unable to determine a valid
density for reading a tape drive.
NXM GLXINT Non-existant memory at PC <pc>
OBR GLXOTS Obsolete routine executed
ODE ORION OPR delete entry error
DELOPR detected that the list of "operators"
is empty.
ODI ORION OPR database inconsistent
The call to VALOPR in SPDOPR failed.
B-17
GALAXY-10 STOPCODES
Name Module Message and Explanation
ONV QSRMDA Offset of New Volume is Invalid
In D$VSR, the calculated offset into the
block of VOL block pointers in the VSL is
negative.
OOR GLXOTS OTS only routine executed
OSF OPR ORION send failed
OTS GLXFIL File Open Block is too small
PAF GLXMEM Page access check failed
While performing function .PAGCA, the PAGE.
UUO failed in routine M%IPRC.
PDL GLXINT Pushdown list overflow at PC <pc>
PEF GLXMEM Page existence check failed
The PAGE. UUO failed while performing
function .PAGCA in PAGFRE.
PIR GLXIPC PID Index out of range
The system PID index passed to SPID is
invalid.
PKF GLXMEM Page kill failed
The PAGE. UUO failed in KILPAG.
PLM PULSAR Previous List TCB has been meddled
PNR PULSAR PULSAR Not Restartable
PQI QSRT10 Prime Queue is Interlocked
In I$OQUE, the FILOP. UUO error return
indicates that the master queue is being
modified.
PRF PLRTAP Positioning Request Failed
B-18
GALAXY-10 STOPCODES
Name Module Message and Explanation
PWE QSRT10 PRIME WRITE ERROR
The OUT UUO in I$WRIT took the error return.
IO.BKT was not one of the error bits returned
using the GETSTS UUO.
QBI QSRMDA QUASAR blew it
The caller of SNDREC failed to provide a
device name for the RECOGNIZE message being
sent to PULSAR.
QNR QUASAR QUASAR Not restartable
QSF CDRIVE Send to QUASAR FAILED
QSF LPTSPL Send to QUASAR FAILED
QSF SPRINT QUASAR send failed
QSF SPROUT Send to QUASAR FAILED
RAR GLXIPC Releasing already released IPCF message
In C%REL, RCVMDB+MDB.MS contains zero.
RAT PULSAR Requesting work for active TCB
RCN ORION G$RSDC is negative database confused
RSDMSG detected that the resend "retry count"
is negative.
RCN QSRFSS REQUEST COUNT NEGATIVE
RCO ORION G$RSDC off .. does not match list data
In RSDMSG, the resend "retry count" indicates
that there are more messages to resend, but
the list is empty.
RCW QSRFSS REBUILD COUNT WRONG
This stopcode indicates problems rebuilding
part of the in-core queues from the current
section of the failsoft file.
B-19
GALAXY-10 STOPCODES
Name Module Message and Explanation
REF QSRT10 READING END OF FILE
A second EOF error return was generated
because there is no more data to be read.
REI ORION Remembered entry <entry > in list <list >
invalid
NXTMSG detected an error in its IPCF message
database.
RIE QSRT10 READ I/O ERROR
In I$READ, the IN UUO took the error return,
and the error was not EOF.
RJM QSRADM Requeue job missing
QUASAR's object database is corrupt.
RKD PLRDSK Running a killed disk TDB
RKM PLRTAP Running a killed magtape TDB
RLT PLRTAP Failed Reading Label Type
RMB QSRMDA Resource Number Missing in 'B' Matrix
The unique resource identifier is missing in
a 'B' matrix entry.
RMC QSRMDA Resource Number Missing in 'C' Matrix
The unique resource identifier is missing in
a 'C' matrix entry.
RNF GLXMEM Received non-existent page
M%IPRC detected that a page created by IPCF
does not exist.
B-20
GALAXY-10 STOPCODES
Name Module Message and Explanation
RNW GLXMEM Ridiculous number of words requested
The number of words requested is greater than
number of words available in M%GMEM.
RPF PLRT10 Read label Parameters Failed
The TAPOP. UUO failed in I$RDLP.
RRF QSRFSS Rebuild Routine Failed
One of the queue rebuild routines in REBTBL
failed.
RSE PULSAR Reschedule from exec level
RSF PLRT10 TAPOP. to Read Statistics Failed
RTS GLXFIL Rename block too small
RTT PLRTAP Releasing Tape Twice
RUJ QSRSCH Releasing Uninterlocked Job
In JOBDUN, the ITN of the job and object do
not match when trying to release the
job-object interlock.
RWE QSRT10 REDUNDANT WRITE ERROR
In I$WRIT, the OUT UUO took the error return.
IO.BKT is not the error when writing
redundant queue.
RZP GLXMEM Request for zero pages
B-21
GALAXY-10 STOPCODES
Name Module Message and Explanation
SCE QSRMDA Structure Catalog Entry is Missing
A known structure in the 'A' matrix was not
found in the structure catalog.
SDF OPR Setup dialog failed
SFI ORION Send failure table inconsistent
SFO OPR Setup failure by OPR
SFP GLXSCN Scanning floating point not implemented
XCMFLT was called.
SIO PLRTAP Switch units with OPEN Label DDB
SLT PLRT10 Set Label Type failed
SND PLRTAP Switch units with non-existent device
<device>
SPF PLRT10 Set label Params Failed
SSR PLRLBP Strange Skip Record
STS OPRPAR SHARED SWITCH TABLE SIZE OF <table size> TOO
SMALL FOR TABLE OF SIZE <table size>
TBI PLEASE S%TXTI block incorrect
TDE OPRPAR TABLE DELETE ERROR
TFF GLXKBD FILOP. OUT failed to terminal
B-22
GALAXY-10 STOPCODES
Name Module Message and Explanation
TML GLXTXT Too many levels of call
SAVLVL detected that it was called more than
once to save T%TEXT context.
TML LPTSPL TOO MANY LOG BUFFERS REQUIRED
LOGBUF detected that more than ten pages are
being used to build LPTSPL's RUN LOG.
TMS CDRIVE Too many setups
CDRIVE was told to start more readers than it
can handle.
TMS LPTSPL Too many setups
LPTSPL was told to start more printers than
it can handle.
TMS QSRFSS TOO MANY SECTIONS
Corrupt failsoft queue.
TMS SPROUT Too many setups
SPROUT was told to start more plotters than
it can handle.
TMT GLXSCN Too much text
The buffer for the command being parsed
cannot hold any more text.
TNO GLXKBD Terminal never opened
TUF PLRT10 TAPOP. UUO failed
The TAPOP. UUO failed while trying to get
REELID in I$RDEV.
UDR PLRT10 Unknown drive type DSKCHR bits =
<characteristics bits>
B-23
GALAXY-10 STOPCODES
Name Module Message and Explanation
UFI GLXFIL Unknown File Information Descriptor
F%INFO was called with an invalid argument.
UIR GLXIPC Unexpected IPCF interrupt received
C%INTR was called on an IPCF interrupt but
PSIFLG is zero.
ULS PLRDSK Unit parameter list is short
UMS SPRINT Unsupported Recording Mode Specified <mode>
UMT GALGEN Unrecognized Monitor Type
UNR GLXOTS Unimplemented routine executed
URM SPRINT Unknown Recording Mode <mode> Error in
NEXTJOB Message
USM QSRT10 Unique stream missing
Calls to either L%FIRST or L%NEXT in UNIFST
returned FALSE.
VPF QSRMDA Volume Pointer Not Found
SCNVOL detected that VSL's VOL block(s) links
are inconsistent.
VSA QRSMDA VSL Address is Missing in a VOL
There is no pointer to a VSL in a VOL block
found by a pointer from a VSL. VSL and VOL
blocks should be doubly linked.
WBL QSRT10 WRITING BAD LENGTH
The block length to be written in I$WRIT is
greater than one page (512 words).
WFO GLXINT WTO Function <function> Out of range at
address <address>
WLT OPR Wrong length table entry block
B-24
GALAXY-10 STOPCODES
Name Module Message and Explanation
WNF PULSAR Waiting TCB not found
WQV QSRFSS Wrong version of master queue file
ZTE OPR Zero entry in syntax table entry block
ZTS OPR Zero tables setup for OPR
ZWR GLXMEM Zero words of memory returned
B-25