Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 4 Jun 2004 11:00:37 -0400
From:      John Baldwin <jhb@FreeBSD.org>
To:        freebsd-current@FreeBSD.org
Cc:        Ian FREISLICH <if@hetzner.co.za>
Subject:   Re: It's happening again (panic early in boot)
Message-ID:  <200406041100.37671.jhb@FreeBSD.org>
In-Reply-To: <E1BWCCK-0001nk-00@hetzner.co.za>
References:  <E1BWCCK-0001nk-00@hetzner.co.za>

next in thread | previous in thread | raw e-mail | index | archive | help
On Friday 04 June 2004 06:45 am, Ian FREISLICH wrote:
> Hi
>
> Every month or so after it started working I get this panic.
> The panic then goes away after a month or two, with no explanation.
> During the existence of the panic I try new kernel source once a day.
>
> This is an SMP machine.  Using the same source UP kernels work fine,
> SMP kernels don't.  The last SMP kernel that worked is circa May 17.

grr, I still don't know why this happens.   One thing though is that if we can 
fix the nested panic we might can work on the first one.

> --
> Ian Freislich
>
> Booting [/boot/kernel/kernel]...
> /boot/kernel/acpi.ko text=0x3a0e4 data=0x19e4+0x11ac
> syms=[0x4+0x6860+0x4+0x8a87 ]
> Copyright (c) 1992-2004 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
>         The Regents of the University of California. All rights reserved.
> FreeBSD 5.2-CURRENT #15: Fri Jun  4 10:23:23 SAST 2004
>     ianf@brane-dead.freislich.nom.za:/usr/src/sys/i386/compile/BRANE-DEAD
> Preloaded elf kernel "/boot/kernel/kernel" at 0xc0728000.
> Preloaded elf module "/boot/kernel/acpi.ko" at 0xc0728244.
> Timecounter "i8254" frequency 1193182 Hz quality 0
> CPU: Pentium II/Pentium II Xeon/Celeron (267.27-MHz 686-class CPU)
>   Origin = "GenuineIntel"  Id = 0x634  Stepping = 4
>  
> Features=0x80fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,
>CMO V,MMX>
> real memory  = 201261056 (191 MB)
> avail memory = 191311872 (182 MB)
> MPTable: <OEM00000 PROD00000000>
> kernel trap 12 with interrupts disabled
>
>
> Fatal trap 12: page fault while in kernel mode
> cpuid = 0; apic id = 00
> fault virtual address   = 0x1c
> fault code              = supervisor write, page not present
> instruction pointer     = 0x8:0xc058d98e

Can you do a gdb -k on kernel.debug and do 'l *' on this address?  That might 
let us fix the panic in vm_fault().

-- 
John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200406041100.37671.jhb>