linux-kernel - Re: 2.6.35-rc2 module reference counting broken

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Message-ID: <4C0F3C66.1020601@kernel.org>
Date:	Wed, 09 Jun 2010 09:01:58 +0200
From:	Tejun Heo <tj@...nel.org>
To:	Al Viro <viro@...IV.linux.org.uk>
CC:	linux-kernel@...r.kernel.org,
	Rusty Russell <rusty@...tcorp.com.au>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jari Ruusu <jariruusu@...rs.sourceforge.net>,
	Nick Piggin <npiggin@...e.de>,
	Jens Axboe <jens.axboe@...cle.com>
Subject: Re: 2.6.35-rc2 module reference counting broken

Hello,

On 06/09/2010 01:48 AM, Al Viro wrote:
>>     block: implement bd_claiming and claiming block
>>
>> I'm far too sleepy right now, but I'd start with reviewing what that
>> thing is doing to module refcounting...
> 
> Yeah...  bd_start_claiming() grabs a reference to gendisk and we never
> let it go.  There's your leak...

Eh, I thought you were cc'd.  Sorry.  This was fixed sometime back by
Nick and queued in block tree (delayed due to mail misdelivery).

  http://thread.gmane.org/gmane.linux.file-systems/40655

Thanks.

-- 
tejun
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