linux-kernel - Re: 2.6.18 BUG: unable to handle kernel NULL pointer dereference at virtual address 000,0000a

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Message-ID: <451757BE.3070802@yahoo.com.au>
Date:	Mon, 25 Sep 2006 14:14:54 +1000
From:	Nick Piggin <nickpiggin@...oo.com.au>
To:	Christian Weiske <cweiske@...iske.de>
CC:	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org,
	reiserfs-dev@...esys.com, Ingo Molnar <mingo@...e.hu>
Subject: Re: 2.6.18 BUG: unable to handle kernel NULL pointer dereference
 at virtual address 000,0000a

Christian Weiske wrote:

>Andrew,
>
>
>
>>I assume that you have confirmed that the machine doesn't have hardware
>>problems?  Does it run some earlier kernel OK?  
>>
>The disks are both fine, they worked in other pcs without problems. The
>ide controller card also worked fine, and the motherboard is new -
>whatever you can expect with that. Maybe the combination is the problem.
>

Memory, motherboard, and CPU would be possible candidates, in roughly
that order of likelihood. If you can run memtest86+ on it overnight,
that would provide a bit more confidence in all.

Can you try using a different IDE controller to reproduce the panic
on the same system?

>>And how long does it take to crash?
>>
>After starting the yacy daemon, it's about half a minute until the
>"possible recursive locking detected" appears, and after one or two
>minutes the whole thing crashes.
>

I wonder if that does anything unusual apart from use the network?
Can you break it with anything else? a big ftp transfer?

--

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