From owner-freebsd-current  Wed Nov 25 05:37:29 1998
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To: Jesper Skriver <jesper@skriver.dk>
cc: current@FreeBSD.ORG
Subject: Re: Random craches under heavy(?) disk activity 
In-reply-to: Your message of "Wed, 25 Nov 1998 09:46:41 +0100."
             <19981125094641.A28029@skriver.dk> 
From: David Greenman <dg@root.com>
Reply-To: dg@root.com
Date: Wed, 25 Nov 1998 05:38:43 -0800
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>On Tue, Nov 24, 1998 at 05:18:16PM -0800, David Greenman wrote:
>
>>    Guys, would you please look at the file sys/kern/vfs_cluster.c and verify
>> that you have rev 1.74?
>
>I have rev 1.74.
>
>I installed a 3.0-RELEASE monday (11/23), and ran cvsup to get it
>updated, I upgraded the kernel, and made a "make buildworld && make
>installworld", after that the box crashes when running X and starting a
>few programs, or when running a make buildworld ....
>
>I happend before I enabled softupdates, and it has happend afterwards.
>
>On one time I got the output from the panic.
>
>fatal trap 12: page fault while in kernel mode
>fault virtual address = 0x0
>fault code = supervisor read page not present
>instruction pointer = 0x8 : 0xf01d6583
>stack pointer = 0x10 : 0xf4345afc
>frame pointer = 0x10 : 0xf4345b04
>code segment = base 0x0 limit 0xfffff type 0x1b
>			 = DPL0 pres1 def 321 gran 1
>processor eflags = interrupt enabled, resume IOPL = 0
>current process = 290 (as)
>interrrupt mask = net tty bio cam
>trap number = 12
>panic: page fault

   This is unrelated to the filesystem panic that we've been talking about. I
saw your followup about the fault occuring in zalloci(). A traceback would
be helpfull in isolating this problem.

-DG

David Greenman
Co-founder/Principal Architect, The FreeBSD Project

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