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Date:      Thu, 21 Feb 2008 23:49:07 GMT
From:      Eric Kingston <ericnk@esreco.net>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   i386/120954: FreeBSD 6.3 Release: Fatal trap 12: page fault while in kernel mode
Message-ID:  <200802212349.m1LNn7DJ047713@www.freebsd.org>
Resent-Message-ID: <200802220000.m1M005mm002295@freefall.freebsd.org>

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>Number:         120954
>Category:       i386
>Synopsis:       FreeBSD 6.3 Release: Fatal trap 12: page fault while in kernel mode
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Feb 22 00:00:05 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Eric Kingston
>Release:        FreeBSD 6.3 Release
>Organization:
Standard Industries
>Environment:
FreeBSD ifabgate.esreco.net 6.3-RELEASE FreeBSD 6.3-RELEASE #0: Wed Jan 16 04:45:45 UTC 2008     root@dessler.cse.buffalo.edu:/usr/obj/usr/src/sys/SMP  i386
>Description:
After installing FreeBSD 6.3 Release on a Shuttle XPC SD30G2B, intel 945GC + ICH7 chipset, Intel E6400 core 2 duo 2.13 Ghz, 1066 Mhz FSB processor, I logged on the console as root and while attempting a shutdown -r now I happened upon the following Fatal Trap 12....

Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address	= 0x2c
fault code		= supervisor read, page not present
instruction pointer	= 0x20:0xc08f47e9
stack pointer		= 0x20:0xd5aeda08
frame pointer		= 0x28:0xd5aeda14
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		= 904 (getty)
trap number		= 12
panic: page fault
cpuid = 1
Uptime: 20m21s

The problem also occurs while attempting filesystem activity with a command like..   "find / -name "*.so" .

I will also add that I installed FreeBSD 6.2 Release on the same system and everything worked flawlessly, no kernel panic or trap errors at all.


>How-To-Repeat:
Install FreeBSD 6.3 Release on a Shuttle XPC SD30G2B, intel 945GC + ICH7 chipset, Intel E6400 core 2 duo 2.13 Ghz, 1066 Mhz FSB processor, 512MB DDR2, 667Mhz RAM, log in as root on the console and run "shutdown -r now".


>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:



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