Re: [PATCH v8]: Improve performance of LZO/plain hibernation

From: Bojan Smojver
Date: Fri Oct 14 2011 - 02:51:09 EST


------- 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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