linux-kernel - Re: software suspend doesn't work with 2.6.22-rc3

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Message-Id: <1180178040.5493.5.camel@nigel.suspend2.net>
Date:	Sat, 26 May 2007 21:14:00 +1000
From:	Nigel Cunningham <nigel@...el.suspend2.net>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	Maximilian Engelhardt <maxi@...monizer.de>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: software suspend doesn't work with 2.6.22-rc3

Hi.

On Sat, 2007-05-26 at 21:08 +1000, Herbert Xu wrote:
> On Sat, May 26, 2007 at 07:53:53PM +1000, Nigel Cunningham wrote:
> > 
> > Herbert, is this right? If cryptd is going to be used for block devs,
> > the task should probably be PF_NOFREEZE (or whatever it is today)
> > instead.
> 
> Probably.  However, I don't think this is responsible for the reported
> problem because the code to use cryptd in dm-crypt hasn't been merged
> yet :)

You have the cryptd Kconfig option in (at least in rc3) - presumably
Maximillian has been too keen and turned it on before you were ready :)
It does make sense for it to be the problem. Without PF_NOFREEZE set,
the refrigerator code will try to get it to enter the freezer, and
without the try_to_freeze(), it will just loop and freezing will fail.

Regards,

Nigel

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