linux-kernel - Re: [PATCHSET 2.6.22-rc4] sysfs: fix race conditions

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Message-ID: <466D1DC5.7020503@gmail.com>
Date:	Mon, 11 Jun 2007 19:02:45 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Eduard-Gabriel Munteanu <maxdamage@...din.ro>
CC:	linux-kernel@...r.kernel.org
Subject: Re: [PATCHSET 2.6.22-rc4] sysfs: fix race conditions

Eduard-Gabriel Munteanu wrote:
> *This message was transferred with a trial version of CommuniGate(r) Pro*
> Tejun Heo wrote:
> 
>> This patchset contains three minimal backports of fixes in -mm.  With
>> all patches in the patchset and sysfs-races.patch applied, kernel
>> survived ~20 hours of stress test without any problem.
>>
> 
> Seriously, do you think adding a few sleeps fixes anything? It just
> makes it harder to happen, and even harder to debug, so this is no good.
> Race condition are fixed by proper locking, ordering and so on.
> 
> (No offence, this has to be the patch of the week. :) )

Dude, what are you smoking and can I get some?  The attached patch is to
trigger the race conditions more easily for verification.  Actual fixes
are in the three patches posted as reply to the head message.

-- 
tejun
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