linux-kernel - Re: md related oops triggered in bdev_inode_switch

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Message-ID: <20110911070115.GA6361@sucs.org>
Date:	Sun, 11 Sep 2011 08:01:15 +0100
From:	Sitsofe Wheeler <sitsofe@...oo.com>
To:	Lin Ming <mlin@...pku.edu.cn>
Cc:	NeilBrown <neilb@...e.de>, Wu Fengguang <fengguang.wu@...el.com>,
	Christoph Hellwig <hch@....de>,
	Hugh Dickins <hughd@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: md related oops triggered in bdev_inode_switch_bdi

On Fri, Sep 09, 2011 at 04:56:30PM +0800, Lin Ming wrote:
> On Thu, Sep 1, 2011 at 1:49 PM, NeilBrown <neilb@...e.de> wrote:
> > On Thu, 1 Sep 2011 11:30:56 +0800 Wu Fengguang <fengguang.wu@...el.com> wrote:
> >
> >> Hi Neil,
> >>
> >> > Subject: [PATCH] Avoid dereferencing a 'request_queue' after last close.
> >>
> >> Reviewed-by: Wu Fengguang <fengguang.wu@...el.com>
> >
> > Thanks.
 
> Just FYI,
> this patch also fixes below bug which can be reproduced by unplug the
> usb disk before umount.

Agreed - this fixes the oops I was seeing pulling out a USB key with a
mounted FAT32 filesystem (https://lkml.org/lkml/2011/9/5/339 ). Thanks
to Yang RuiRui and akpm for point me to this patch.

Tested-by: Sitsofe Wheeler <sitsofe@...oo.com>

-- 
Sitsofe | http://sucs.org/~sits/
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