linux-ext4 - Re: Soft lockups in mballoc code

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Date:	Thu, 15 May 2008 15:08:06 +0530
From:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
To:	Nick Dokos <nicholas.dokos@...com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: Soft lockups in mballoc code

On Mon, May 12, 2008 at 01:21:35PM -0400, Nick Dokos wrote:
> I keep getting soft lockups in mballoc code, running fsstress.
> I'm running a 2.6.25.2 kernel, with 1.40.8 e2fsprogs. Here
> is sample console output on a 2-cpu Opteron box with a 2Tb filesystem -
> the two stack traces keep repeating every minute or so and the only
> way to get out is to reset the box:

What is the block size with which the file system is created. I would
also suggest testing with the latest kernel and see if you can
reproduce the same. While testing with the latest kernel please also
use the below patch.

http://repo.or.cz/w/ext4-patch-queue.git?a=blob;f=ext4-mballoc-fix-mb-_nornalize_request-for-1K-blksz.patch;h=f7b91a6186b7b469ad798ddc95e76ece69b47c24;hb=HEAD


-aneesh
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