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Date: Sat, 19 Nov 2005 10:06:15 -0700
From: Scott Long <scottl@samsco.org>
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To: delphij@delphij.net
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Cc: Hao Chen <hchen@utmem.edu>, freebsd-current@freebsd.org
Subject: Re: RELENG_6_0: fatal trap 12
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Xin LI wrote:
> Hi,
> 
> On 11/19/05, Hao Chen <hchen@utmem.edu> wrote:
> 
>>I am upgrading from 5.4 to 6.0 and got the following error message:
>>
>>
>>Fatal trap 12: page fault while in kernel mode
>>cpuid = 1; apic id = 01
>>fault virtual address   = 0x480008
>>fault code              = supervisor read, page not present
>>instruction pointer     = 0x20:0xc069c394
>>stack pointer           = 0x28:0xe10208ac
>>frame pointer           = 0x28:0xe10208ac
>>code segment            = base 0x0, limit 0xfffff, type 0x1b
>>                       = DPL 0, pres 1, def32 1, gran 1
>>processor eflags        = interrupt enabled, resume, IOPL = 0
>>current process         = 0 (swapper)
>>trap number                             = 12
>>
>>
>>I have tried booting with or without ACPI, in safe mode, or single user
>>mode and got the same message on booting. Oh, I am using GENERIC kernel.
> 
> 
> Having this sort of panics within swapper is very weird.  Are you
> having the issue for every boot?  Would you please consider trying the
> 6.0-RELEASE disc1 to see if it would boot correctly?
> 
> Cheers,
> --
> Xin LI <delphij@delphij.net> http://www.delphij.net
> 
> 

A panic in 'swapper' usually just means that the panic happened before
/sbin/init was launched.

Scott