Title: | DECmcc user notes file. Does not replace IPMT. |
Notice: | Use IPMT for problems. Newsletter location in note 6187 |
Moderator: | TAEC::BEROUD |
Created: | Mon Aug 21 1989 |
Last Modified: | Wed Jun 04 1997 |
Last Successful Update: | Fri Jun 06 1997 |
Number of topics: | 6497 |
Total number of notes: | 27359 |
Hi, is there anyone help me ? My customer has VAXstation Mod. 4000-90 that shows system crash many time every day. The following pages describes hardware and software environment as wel a typical crash dump. VAXstation Mod. 4000-90 hardware configuration: ----------------------------------------------- KA49-A V1.0-006-V4.0 64MB main memory VRT19-HA TZ30 storage device VAXstation Mod. 4000-90 software configuration: ----------------------------------------------- CDD V5.0 DECmcc V1.3 UCX V2.0 RDB V4.2 DTR V6.0 MOTIF V1.1 System crash information ------------------------ Time of system crash: 5-AUG-1993 12:01:16.42 Version of system: VAX/VMS VERSION V5.5-2 System Version Major ID/Minor ID: 1/0 System type: VAXstation 4000-90 Crash CPU ID/Primary CPU ID: 00/00 Bitmask of CPUs active/available: 00000001/00000001 CPU bugcheck codes: CPU 00 -- INVEXCEPTN, Exception while above ASTDEL or on interrupt stack CPU 00 Processor crash information ---------------------------------- CPU 00 reason for Bugcheck: INVEXCEPTN, Exception while above ASTDEL or on inter rupt stack Process currently executing on this CPU: _FTA4: Current image file: VSSE03$DKA300:[SYS0.SYSCOMMON.][SYSEXE]SET.EXE Current IPL: 8 (decimal) CPU database address: 8111A000 CPU 00 Processor crash information ---------------------------------- General registers: R0 = 00000008 R1 = 00080000 R2 = 00000001 R3 = 00000001 R4 = 80B91CD0 R5 = 80FDC880 R6 = 00013E28 R7 = 00000002 R8 = 00900828 R9 = 7FEF2F94 R10 = 00000050 R11 = 0C040007 AP = 7FEF2EF4 FP = 7FFE77E4 SP = 7FFE7770 PC = 80579442 PSL = 00080009 CPU 00 Processor crash information ---------------------------------- Processor registers: P0BR = 828A5600 SBR = 03E19C00 ASTLVL = 00000004 P0LR = 00000206 SLR = 00067080 SISR = 00000100 P1BR = 821CA600 PCBB = 01FA1020 ICCS = 00000041 P1LR = 001FF785 SCBB = 03E12A00 SID = 13000202 TODR = 7F7E9DF5 BPCR = ECC80024 PAMODE = 00000000 MMEPTE = 040309E8 MMESTS = 1C004005 PCSCR = 01000200 ICSR = 00000001 ECR = 0000008E TBSTS = 800001D0 PCCTL = FFFFFC13 PCSTS = FFFFF800 CEFSTS = 00007EA0 CCTL = 00000011 BCEDSTS= 00000000 BCETSTS= 00000000 NESTS = 00000000 NEOCMD = 0000FF14 NEICMD = 00000000 MESR = 00000000 MMCDSR = 08BDD800 CESR = 00000000 CMCDSR = 0000F108 MEAR = 08406010 CPU 00 Processor crash information ---------------------------------- CIOEAR1= 00000000 CIOEAR2= 00000000 CFG/INT= 00000000 CSEAR1 = 00000000 CSEAR2 = 00000000 CNEAR = 00000000 ISP = 8111B200 KSP = 7FFE7770 ESP = 7FFE9800 SSP = 7FFECA48 USP = 7FEF2E9C No spinlocks currently owned by CPU 00 SDA> sho stack Process stacks (on CPU 00) -------------------------- Current operating stack (KERNEL): 7FFE7750 7FEF2F94 7FFE7754 00000050 7FFE7758 0C040007 7FFE775C 7FEF2EF4 7FFE7760 7FFE77E4 CTL$GL_KSTKBAS+005E4 7FFE7764 7FFE7768 CTL$GL_KSTKBAS+00568 7FFE7768 80579442 EXCEPTION+00242 7FFE776C 00080009 UCB$M_MNTVERPND+00009 SP => 7FFE7770 00000004 7FFE7774 7FFE77E4 CTL$GL_KSTKBAS+005E4 7FFE7778 FFFFFFFD 7FFE777C 00000018 7FFE7780 00000008 7FFE7784 00000001 7FFE7788 00000005 7FFE778C 0000000C 7FFE7790 00000005 7FFE7794 90B6F514 7FFE7798 805CADCA PROCESS_MANAGEMENT+023CA 7FFE779C 00C80000 7FFE77A0 805BE123 EVENT_FLAGS_AND_ASTS+00123 7FFE77A4 00000001 7FFE77A8 805BE04F EVENT_FLAGS_AND_ASTS+0004F 7FFE77AC 00000001 7FFE77B0 00000008 7FFE77B4 805C1952 IO_ROUTINES+01F52 7FFE77B8 80B327C4 FTDRIVER+00344 7FFE77BC 80B91E80 7FFE77C0 00013E28 7FFE77C4 80BCA37F TTDRIVER+0594F 7FFE77C8 00000008 7FFE77CC 805C479C IO_ROUTINES+04D9C 7FFE77D0 80B91E80 7FFE77D4 00000008 7FFE77D8 805C4579 IO_ROUTINES+04B79 7FFE77DC 00000002 7FFE77E0 805C4383 IO_ROUTINES+04983 7FFE77E4 00000000 7FFE77E8 00000000 7FFE77EC 7FEF2ED8 7FFE77F0 7FEF2E9C 7FFE77F4 80579620 EXCEPTION+00420 7FFE77F8 7FFEDE06 P1SYSVECTORS+00006 7FFE77FC 03C00000 typically whenever system crash occours, I see running a batch which starts an alarm setting command procedure by user account MCC_MANAGER. The DCL command $ SHOW PROC/CONT shows a process in MUTEX state and continuous deplention of BYTLM quota. Increase BYTLM doesn't fix the problem but I suspect that behaviour has some connection with system crash because if the alarm setting command procedure doesn't start system crashes don't occur. THANKs in advance Pino.
T.R | Title | User | Personal Name | Date | Lines |
---|---|---|---|---|---|
5444.1 | MCC exception? | GLDOA::DSMITH | Fri Aug 06 1993 13:01 | 8 | |
I have seen a similar crash footprint in the middle of a batch job doing a large number of historical mcc>sho snmp entity tot utilization commands. The process had a Kernel mode AST (QIO) outstanding. I can't see how MCC could cause a crash, though. Does MCC have any code running that could generate an exception in kernel mode? Doug |