linux-kernel - Re: 2.6.23-rc9: Oops in cache_alloc

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Message-ID: <47063EF3.4050302@bull.net>
Date:	Fri, 05 Oct 2007 15:41:07 +0200
From:	Valerie Clement <valerie.clement@...l.net>
To:	Badari Pulavarty <pbadari@...il.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	ext4 development <linux-ext4@...r.kernel.org>
Subject: Re: 2.6.23-rc9: Oops in cache_alloc_refill()  mm/slab.c

Badari Pulavarty wrote:
> On Thu, 2007-10-04 at 18:13 +0200, Valerie Clement wrote:
>> While running ffsb tests on my ext4 filesystem, I got an Oops in 
>> cache_alloc_refill().
>> I turned on SLAB debugging and here is the message I got:
>>
>> slab: Internal list corruption detected in cache 'buffer_head'(30), 
>> slabp ffff81007e100100(1515870810). Hexdump:
> 
> slabp->inuse = 1515870810 looks bogus. Is this easily reproducible ?

Hi Badari,
Thanks for your answer.
I didn't reproduce it without the latest ext4 patches. So I suspect a 
bug in one of them.
But how debugging this?
Which other debug traces can I turn on?

   Valérie

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