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Date:      Mon, 18 Mar 2002 14:42:36 -0800
From:      Terry Lambert <tlambert2@mindspring.com>
To:        Abdul Basit <basit@basit.cc>
Cc:        hackers@FreeBSD.ORG
Subject:   Re: fault VA=0x0 segfaults.
Message-ID:  <3C966D5C.22B4FDE0@mindspring.com>
References:  <20020318054606.G51974-100000@wireless.cs.twsu.edu>

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Abdul Basit wrote:
> basit@wireless:~$ silc
> fatal process exception: page fault, fault VA = 0x0
> Segmentation fault (core dumped)
> basit@wireless:~$
> 
> This is what i get randomly with programs(for example mozilla) , specially
> when running programs with linux binary compat. though freebsd compiled
> programs does segfaults too sometimes ..  I'm sure its not corrupted
> memory cause everything was working before.
> 
> can any one give me any tip on it ?

Dereference of NULL pointer in kernel mode.

No one will be able to help you without a stack traceback
from the kernel debugger.  Enable the kernel debugger, build
a new kernel, cause the problem again, and post the traceback.

-- Terry

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