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Date:      Fri, 16 Mar 2001 20:49:17 +0200
From:      Ruslan Ermilov <ru@FreeBSD.ORG>
To:        Roberto Nunnari <nunnari@die.supsi.ch>
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: crash on 4.3-BETA
Message-ID:  <20010316204916.A23643@sunbay.com>
In-Reply-To: <3AB25D27.BFC03A4F@die.supsi.ch>; from nunnari@die.supsi.ch on Fri, Mar 16, 2001 at 07:36:23PM %2B0100
References:  <3AB25D27.BFC03A4F@die.supsi.ch>

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On Fri, Mar 16, 2001 at 07:36:23PM +0100, Roberto Nunnari wrote:
> I just got this right after a 'make install' for a port.
> 
> ===============================================
> Fatal trap 12: page fault while in kernel mode
> fault virtual address   =0x8
> fault code      = supervisor read, page not present
> instruction pointer= 0x8:0xc01e659f
> stack pointer   = 0x10:0xc87bbd5c
> frame pointer   = 0x10:0xc87bbd6c
> 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 = 24978 (basename)
> interrupt mask  = none
> trap number     = 12
> panic: page fault
> 
> syncing disks... 156 156 152 134 116 87 64 22
> done
> Uptime: 6h26m0s
> Automatic reboot in 15 seconds
> ===============================================
> 
Huh, it would be much better if you had both core image
from the kernel, and kernel.debug in /sys/compile/IDENT/.

Anyway, run ``nm /kernel'' and try to find what symbols
are close to the 0xc01e659f address (instruction pointer).

My /kernel, for example, shows this (sorry, Soren):

c01e6478 t acdclose
c01e64f0 t acdioctl
c01e6380 t acdopen

Of course, acd(4) is not exactly a culprit (I have a different
config from yours, and hence my kernel layout is different).
This is just to show you the idea.


Cheers,
-- 
Ruslan Ermilov		Oracle Developer/DBA,
ru@sunbay.com		Sunbay Software AG,
ru@FreeBSD.org		FreeBSD committer,
+380.652.512.251	Simferopol, Ukraine

http://www.FreeBSD.org	The Power To Serve
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