linux-kernel - Re: [-mm patch] fix locking in __make_request (was Re: 2.6.20-mm2: Oops in generic_make

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Date:	Mon, 19 Feb 2007 14:52:21 +0100
From:	"Michal Piotrowski" <michal.k.k.piotrowski@...il.com>
To:	"Frederik Deweerdt" <deweerdt@...e.fr>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Mattia Dongili" <malattia@...ux.it>,
	"Laurent Riffard" <laurent.riffard@...e.fr>,
	linux-kernel@...r.kernel.org, axboe@...nel.dk,
	"Jens Axboe" <jens.axboe@...cle.com>
Subject: Re: [-mm patch] fix locking in __make_request (was Re: 2.6.20-mm2: Oops in generic_make_request)

Hi Frederik,

On 20/02/07, Frederik Deweerdt <deweerdt@...e.fr> wrote:
> Hi Michal,
>
> This seems to be a locking problem in __make_request, check_plug_merge()
> should be called with the q->queue_lock held.
> Could you try the following patch? It silenced the oops for me.

For me too, but Jens dislikes this patch.

>
> Regards,
> Frederik

Regards,
Michal

-- 
Michal K. K. Piotrowski
LTG - Linux Testers Group (PL)
(http://www.stardust.webpages.pl/ltg/)
LTG - Linux Testers Group (EN)
(http://www.stardust.webpages.pl/linux_testers_group_en/)
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