System crashes but why ?
From: Daniel Clar (Daniel.Clar_at_supelec.fr)
Date: 09/23/03
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Date: Tue, 23 Sep 2003 07:25:46 +0200 (MET DST) To: tru64-unix-managers@ornl.gov
Hello Managers,
Before calling the TSC, I want to understand a little why my AS1200 2CPUs
crashes from time to time (2 days without crash but very little activity,
then 2 crashes in 3 hours with high activity).
uerf is just giving :
EVENT CLASS ERROR EVENT
OS EVENT TYPE 302. PANIC
SEQUENCE NUMBER 14.
OPERATING SYSTEM DEC OSF/1
OCCURRED/LOGGED ON Mon Sep 22 17:35:22 2003
OCCURRED ON SYSTEM xyz
SYSTEM ID x00070016
SYSTYPE x00000007
PROCESSOR COUNT 2.
PROCESSOR WHO LOGGED x00000001
MESSAGE panic (cpu 1): kernel memory fault
Looking at the crash-data file, I find :
trap: invalid memory read access from kernel mode
faulting virtual address: 0x0000000000000001
pc of faulting instruction: 0xfffffc00003defb8
ra contents at time of fault: 0xfffffc0000454578
sp contents at time of fault: 0xfffffe048d2878a0
panic (cpu 1): kernel memory fault
syncing disks...
trap: invalid memory write access from kernel mode
faulting virtual address: 0x0000000000000000
pc of faulting instruction: 0xfffffc00004dc718
ra contents at time of fault: 0xfffffc00004dc6d4
sp contents at time of fault: 0xfffffe048cd6f8e0
"
Is there something obvious here ?
Thank you for your help.
Regards
Daniel Clar
Computer Operations Manager
Supelec
France
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