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Date:	Fri, 05 Oct 2007 15:41:07 +0200
From:	Valerie Clement <>
To:	Badari Pulavarty <>
Cc:	Linux Kernel Mailing List <>,
	ext4 development <>
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?


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