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Message-ID: <0123092430.1003081854@rexursive.com>
Date:	Fri, 14 Oct 2011 17:50:54 +1100
From:	"Bojan Smojver" <bojan@...ursive.com>
To:	penberg@...helsinki.fi
Cc:	rjw@...k.pl, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org, keithp@...thp.com
Subject: Re: [PATCH v8]: Improve performance of LZO/plain hibernation

------- Original message -------
> From: Pekka Enberg

> What debugging options do you have enabled?

Not sure to be honest. Just copied Fedora kernel config file and built with 
that. Will check.

> Bojan, this is with Intel drivers, right?

Correct. But note that I had similar trouble on a box that has radeon 
graphics. Essentially, if I pass nomodeset to the kernel, I can hibernate 
thaw 100+ times with no issues (after all these cycles, the box is healthy, 
runs programs with no trouble etc.).

> I'm CC'ing Keith which might
> be able to give some clues how to debug KMS related hibernate/thaw
> issues.

I am already on intel-gfx list where I asked the same questions, got some 
suggestions and eventually opened a bug to track the issue. My last message 
to that list was that I think the problem may be in common KMS code, given 
I get similar touble with intel and radeon graphics, 32 and 64 bit machines 
and with or without my patch.

--
Bojan 
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