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Date: Tue, 24 Mar 2009 14:39:50 -0700
From: Sam Leffler <sam@freebsd.org>
Organization: FreeBSD Project
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To: Goran Gajic <ggajic@afrodita.rcub.bg.ac.yu>
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Cc: freebsd-current@freebsd.org
Subject: Re: panic in 8.0-CURRENT after svn from r189900 to r190389
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Goran Gajic wrote:
>
> Hi,
>
> Today I have svn up my FreeBSD-8.0-CURRENT to r190389 but it is no 
> longer able to boot, it panics at boot. Here is message I'm getting (I 
> had to write it down to paper :( since I don't have serial attached to 
> this machine:
>
> Fatal trap 12: page fault while in kernel mode
> cpuid =0, apic id = 00
> fault virtual address = 0x3c
> Fault code            = supervisor write data, page not present
> Instruction ponter    = 0x8: 0xffffffff8056db9f
> Stack ponter          = 0x10: 0xffffffff813bac70
> Code segment          = 0x10: 0xffffffff813baca0
>                       = base 0x0, limit 0xfffff, type 0x1b
>                         DPL 0, pres 1, long 1, def32 0, gran 1
> Processor eflags      = resume, iopl = 0
> Current process       = 0 (swapper)
> [thread pio 0 tid 10000]
> stopped at devclass_find_interna+0x10f: orl $0x1, 0x3c(%rax)
> db> where
> tracing pid 0 tid 10000 td 0xffffffff80bb5ce0
> dev_class_find_internal() at devclass_find_internal+0x10f
> driver_module_handler() at driver_module_handler+0xb9
> module_register_init() at module_register_init+0x7d
> mi_startup() at mi_startup+0x59
> btext() at btext+0x2c
> db>
>

I'm stuck on the same issue on a t61 (amd64/SMP).  I don't have any modules.

    Sam