Date: 18 Mar 2002 19:10:49 -0000 From: Karsten Thygesen <karthy@karthy.net> To: freebsd-stable@freebsd.org Subject: Crashdump analysis problems... Message-ID: <20020318191049.52987.qmail@karthy.net>
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Hi
I have an unstable FreeBSD-4.5-STABLE server with 4 CPU and 3GB
memory, a little less than 2Tb disks.
Every 1-5 days it crashes with an vm_page_unwire: invalid wire count: 0
I made a kernel with debug enabled, installed it, turned on crash dump
and will now try to see, what triggers the error. But GDB voes:
======================================================================
abnew01% sudo gdb -k /usr/obj/usr/src/sys/ABNEW01/kernel.debug /var/crash/vmcore.1
GNU gdb 4.18
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-unknown-freebsd"...
SMP 4 cpus
IdlePTD at phsyical address 0x00351000
initial pcb at physical address 0x002c2120
panicstr: vm_page_unwire: invalid wire count: 0
panic messages:
---
dmesg: kernel message buffer has different magic number
---
#0 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
487 if (dumping++) {
(kgdb) where
#0 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
#1 0xd3ce3c8a in ?? ()
Cannot access memory at address 0x450d6e76.
(kgdb)
======================================================================
Any ideas about what to do?
Best regards,
Karsten
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