linux-kernel - Re: [Bad page] trying to free locked page? (Re: [PATCH][RFC] fix kernel BUG at mm/migrate.c:719! in 2.6.26-rc5-mm3)

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Date:	Wed, 18 Jun 2008 11:40:57 +0900
From:	Daisuke Nishimura <nishimura@....nes.nec.co.jp>
To:	Lee Schermerhorn <Lee.Schermerhorn@...com>
Cc:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rik van Riel <riel@...hat.com>,
	Kosaki Motohiro <kosaki.motohiro@...fujitsu.com>,
	Nick Piggin <npiggin@...e.de>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, kernel-testers@...r.kernel.org
Subject: Re: [Bad page] trying to free locked page? (Re: [PATCH][RFC] fix
 kernel BUG at mm/migrate.c:719! in 2.6.26-rc5-mm3)

> > > > 
> > > Good catch, and I think your investigation in the last e-mail was correct.
> > > I'd like to dig this...but it seems some kind of big fix is necessary.
> > > Did this happen under page-migraion by cpuset-task-move test ?
> > > 
> > Yes.
> > 
> > I made 2 cpuset directories, run some processes in each cpusets,
> > and run a script like below infinitely to move tasks and migrate pages.
> 
> What processes/tests do you run in each cpuset?
> 

Please see the mail I've just sended to Kosaki-san :)


Thanks,
Daisuke Nishimura.
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