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Re: XFS crash on linux raid

To: Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>
Subject: Re: XFS crash on linux raid
From: Eric Sandeen <sandeen@xxxxxxxxxxx>
Date: Fri, 04 May 2007 09:55:30 -0500
Cc: David Chinner <dgc@xxxxxxx>, xfs@xxxxxxxxxxx
In-reply-to: <20070504152546.614374ac@harpe.intellique.com>
References: <20070503164521.16efe075@harpe.intellique.com> <20070504005922.GC32602149@melbourne.sgi.com> <20070504090613.7c0f97d3@galadriel.home> <20070504073344.GL32602149@melbourne.sgi.com> <20070504152546.614374ac@harpe.intellique.com>
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Emmanuel Florac wrote:
Le Fri, 4 May 2007 17:33:44 +1000
David Chinner <dgc@xxxxxxx> écrivait:

Well, there's your problem. Stack overflows.  IMO, if you use a
filesystem, you shouldn't use 4k stacks. ;)

If you remake you kernel with 8k stacks then your problems will
most likely go away.

Well, I've double-checked the asm-i386/module.h, and it actually looks like 4K stacks is NOT the default, so I must be using 8K, isn't it?

Depends on how you config'd it, just look at the .config you built with, and search for CONFIG_4KSTACKS

On Fedora at least (and I can't remember - I don't think this is a fedora-ism...) you can do "modinfo" on some module, and see:

vermagic:       2.6.21 SMP mod_unload 686 4KSTACKS


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