linux-kernel - Re: freezer problems

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Message-ID: <20070222174439.GA236@tv-sign.ru>
Date:	Thu, 22 Feb 2007 20:44:39 +0300
From:	Oleg Nesterov <oleg@...sign.ru>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	paulmck@...ux.vnet.ibm.com, ego@...ibm.com, akpm@...l.org,
	paulmck@...ibm.com, mingo@...e.hu, vatsa@...ibm.com,
	dipankar@...ibm.com, venkatesh.pallipadi@...el.com,
	linux-kernel@...r.kernel.org, Pavel Machek <pavel@....cz>
Subject: Re: freezer problems

On 02/22, Rafael J. Wysocki wrote:
> 
> Okay, attached.  The first one closes the race between thaw_tasks() and the
> refrigerator that can occurs if the freezing fails.  The second one fixes the
> vfork problem (should go on top of the first one).

Looks good to me.

> > Any other ideas? In any case we should imho avoid a separate loop for
> > PF_FREEZER_SKIP tasks to just fix debug messages. In fact it can't help
> > anyway.
> 
> Why don't we just drop the warning?  try_to_freeze_tasks() should give us a
> warning if there's anything wrong anyway.

Indeed :)

Oleg.

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