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PDP-10 Archives
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t1s702.d10
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EDIT DESCRIPTIONS FOR TOPS-10-KS-V702
EDIT 11113 FOR 702
[SYMPTOM]
Stopcodes DOM, CMU.
[DIAGNOSIS]
IPCSER occasionally can return the MM resource when it doesn't
own it. This can only happen on a page mode send when the page to be
sent has already been paged out of the sender's working set.
[CURE]
Rearrange the code so that MM is obtained and released at the
proper places.
********************************************************************************
EDIT 11157 FOR 702
[SYMPTOM]
"?Illegal data mode for device ..." error message can contain no
device name if the device is a TTY.
[DIAGNOSIS]
Routine CHKMOD calls TTYKLQ before dispatching to ERRCON to type
the error message.
[CURE]
Call TTYKLQ after the error message is printed.
********************************************************************************
EDIT 11378 FOR 702
[SYMPTOM]
Customer QUEUE. UUO functions are rejected by IPCSER.
[DIAGNOSIS]
Incorrect range checking.
[CURE]
CAIL T1,.GTQFT##-.GTQFC## -> CAML T1,[.GTQFT##-.GTQFC##]
********************************************************************************
EDIT 11390 FOR 702
[SYMPTOM]
1. Cannot clear the aborted status of a lock by using the ENQ.
modify function.
2. Cannot change the status of a lock from shared to exclusive
by using the ENQ. modify function, even when the user is the
only sharer of a lock.
3. [1,2] jobs requesting shared global locks instead get
exclusive global locks.
[DIAGNOSIS]
1. The documentation clearly states that the aborted status of a
lock can be cleared by issuing an ENQ. modify function with
EQ.FAB clear, but the code also clearly never implemented
this case.
2. For the second case, the documentation states this is
possible, and there is much code to support it. However,
this code does not work.
3. The third case is reasonably obscure. It requires having a
[1,2] job that doesn't have the JP.ENQ privilege. The
subroutine that causes the problem is documented as saving
all the ACs, but it calls PRVBIT which normally will preserve
all ACs, except in this very case.
[CURE]
1. Add code to handle clearing the abort status with an ENQ.
modify function.
2. Add missing instruction to skip over the lock block in a
queue block chain.
3. Call SAVT to preserve all the temp ACs, before calling
PRVBIT.
********************************************************************************
EDIT 11515 FOR 702
[SYMPTOM]
Stopcode KAF.
[DIAGNOSIS]
Code in VALSEG has a T1 instead of a T2 in chasing fragment
pointers.
[CURE]
T2.
********************************************************************************
EDIT 11589 FOR 702
[SYMPTOM]
KS Networks Don't.
In Particular:
1. Mongen defined line uses get ignored; people run crocks like
ANF and DECnet.EXE.
2. DDCMP doesn't meet corporate spec. Confuses others, and
ourself.
3. %Unexpected restart on ... messages unexpectedly restart,
producing a black, illegible mess.
4. Adjacent node congestion.
5. Adjacent node remote reply timeouts.
6. Sundries.
[DIAGNOSIS]
We're VERY confused.
1. BLTing zero over line user in KDL
2. Was coded to match ANF, almost. DECnet expects otherwise.
3. When we get a START on a running line, we don't halt DDCMP,
we just try and restart it.
4. Data messages aren't ACK'd until the other end sends a REP5.
We idle REPs on DECnet lines.
5. Of course.
[CURE]
Of course.
1. Don't
2. Change to conform to spec
3. Halt DDCMP before restarting. Eg, send a STRT, not a STACK.
4. Always ACK data messages immediately. Note that this may not
be a seperate message; it can be piggybacked if the phase of
the moon is OK.
5. Don't. ANF will continue to idle REPs, as this is how it
determines line down. This change causes the line timer to
have a "stopped" state, per the spec.
6. yes.
********************************************************************************
EDIT 11594 FOR 702
[SYMPTOM]
If DECNET.EXE or other user of KDP. fcn 104 creates a new DECnet
line, ROUTER's circuit database is trashed, and NML can't talk to the
line.
[DIAGNOSIS]
MOVE should be MOVEI, off by 1, reversed test, code too big, and
SUB should be SUBI.
[CURE]
I hope so.
********************************************************************************
EDIT 11600 FOR 702
[SYMPTOM]
TMR and other STOPCDs when OPR defines a large disk and believes
the MAX value for SATs/unit. Observed on RP07.
[DIAGNOSIS]
ASKSPU tries to figure out how many retrieval pointers (= SAT
clusters) will fit in the RIB it builds. It cleverly allows for all
the change of unit pointers, and the prime RIB. It fails to allow for
the redundant RIB and the possible EOF pointer. The TMR happens when
we try to add the spare RIB pointer. Because TMR is a HALT STOPCD,
20F tries to help things go further downhill.
[CURE]
Account for worst case when computing what to let the OPR say.
ASKSPU+8. SUBI T2,RIBLEN -1 -> RIBLEN -3
********************************************************************************
EDIT 11622 FOR 702
[SYMPTOM]
If the new FILOP. function RENAME with allocation given in words
can truncate a file incorrectly. If the word count is on a block
boundary, the file become one block too small.
[DIAGNOSIS]
If the file is being truncated to a block boundary, the last
block in the file is full (128 words) not empty (as currently coded).
[CURE]
In FILUUO at RENA35-4 change:
TRNE P4,BLKSIZ-1
TRZ P4,BLKSIZ TO
TRNN P4,BLKSIZ-1 ;BLOCK BOUNDARY?
TROA P4,BLKSIZ ;YES -- LAST BLOCK IS FULL
TRZ P4,BLKSIZ ;NO -- COMPUTE REMAINDER
********************************************************************************
EDIT 11623 FOR 702
[SYMPTOM]
The DIU-10 slave jobs will be created not LOG'd in. They will
then LOGIN under the PPN of the requestor. Since DIU will be a very
large program it would be nice if it could run virtual. Currently,
the DIU slave job has no VM quota, so it can not run virtual. If DIU
could set it's MAXIMUM VIRTUAL LIMIT the job could run virtual.
[DIAGNOSIS]
Allow a non-logged-in job to set it's maximum virtual limits.
DIU will then set these limits before the slave job is logged in.
[CURE]
In COMCON at SETTBL + 24 change
XWD NEDPRV,SETUVL to
XWD NEDPRV+NLOGOK,SETUVL
********************************************************************************
EDIT 11704 FOR 702
[SYMPTOM]
The TOPS-10 Software Installation Guide says that "Erase-to-EOL"
and "backspace-space-backspace" characteristics of the
customer-defined terminal types can be global addresses or symbols.
There is no easy way for the customer to use this option without
editting the monitor.
[DIAGNOSIS]
COMDEV does not handle external symbols passed to it through the
TERMCR macro.
[CURE]
Check the symbols passed by the TERMCR macro during pass 2. If
they are NEEDED, declare them to be external.
********************************************************************************
END OF TOPS-10-KS-V702