linux-kernel - Re: 2.6.20-rc4-mm1 md problem

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Date:	Mon, 15 Jan 2007 08:17:47 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Michal Piotrowski <michal.k.k.piotrowski@...il.com>
Cc:	Andrew Morton <akpm@...l.org>, Neil Brown <neilb@....unsw.edu.au>,
	LKML <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jens Axboe <jens.axboe@...cle.com>
Subject: Re: 2.6.20-rc4-mm1 md problem


* Michal Piotrowski <michal.k.k.piotrowski@...il.com> wrote:

> My system hangs on this
> http://www.stardust.webpages.pl/files/tbf/euridica/2.6.20-rc4-mm1/bug2.jpg
> http://www.stardust.webpages.pl/files/tbf/euridica/2.6.20-rc4-mm1/mm-config
> 
> Debug plan:
> - revert md-* patches
> - binary search
> 
> Does someone have a better idea?

Thomas saw something similar yesterday and he the partial results that 
git.block (between rc2-mm1 and rc4-mm1) breaks certain disk drivers or 
filesystems drivers. For me it worked fine, so it must be only on some 
combinations. The changes to ll_rw_block.c look quite extensive.

	Ingo
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