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Date: Sun, 27 Jul 2008 20:41:03 +0200
From: Kris Kennaway <kris@FreeBSD.org>
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To: Michael Toth <freebsd.mtoth@queldor.net>
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Cc: freebsd-stable@freebsd.org
Subject: Re: 7.0 Crashing
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Michael Toth wrote:

> Reading symbols from /boot/kernel/acpi.ko...Reading symbols from 
> /boot/kernel/acpi.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/acpi.ko
> #0  doadump () at pcpu.h:195
> 195             __asm __volatile("movl %%fs:0,%0" : "=r" (td));
> (kgdb) backtrace
> #0  doadump () at pcpu.h:195
> #1  0xc0782597 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:418
> #2  0xc0782859 in panic (fmt=Variable "fmt" is not available.
> ) at /usr/src/sys/kern/kern_shutdown.c:572
> #3  0xc0a8b39c in trap_fatal (frame=0xe7d6ba90, eva=392) at 
> /usr/src/sys/i386/i386/trap.c:899
> #4  0xc0a8b620 in trap_pfault (frame=0xe7d6ba90, usermode=0, eva=392) at 
> /usr/src/sys/i386/i386/trap.c:812
> #5  0xc0a8bfcc in trap (frame=0xe7d6ba90) at 
> /usr/src/sys/i386/i386/trap.c:490
> #6  0xc0a71bdb in calltrap () at /usr/src/sys/i386/i386/exception.s:139
> #7  0xc0775284 in _mtx_lock_sleep (m=0xc600d174, tid=3318745216, opts=0, 
> file=0x0, line=0) at /usr/src/sys/kern/kern_mutex.c:339
> #8  0xc09a93d7 in vm_fault (map=0xc56b5570, vaddr=671809536, 
> fault_type=2 '\002', fault_flags=8) at /usr/src/sys/vm/vm_fault.c:293
> #9  0xc0a8b50b in trap_pfault (frame=0xe7d6bd38, usermode=1, 
> eva=671813488) at /usr/src/sys/i386/i386/trap.c:789
> #10 0xc0a8be57 in trap (frame=0xe7d6bd38) at 
> /usr/src/sys/i386/i386/trap.c:357
> #11 0xc0a71bdb in calltrap () at /usr/src/sys/i386/i386/exception.s:139
> #12 0x2806e607 in ?? ()
> Previous frame inner to this frame (corrupt stack?)
> (kgdb) q

Not much there, check for RAM/hardware problems.

Kris