From: "Bojan Smojver" <bojan@rexursive.com>
To: rjw@sisk.pl
Cc: linux-kernel@vger.kernel.org, linux-pm@lists.linux-foundation.org
Subject: Re: [PATCH v8]: Improve performance of LZO/plain hibernation
Date: Thu, 13 Oct 2011 22:00:28 +1100 [thread overview]
Message-ID: <2409186928.1003010428@rexursive.com> (raw)
In-Reply-To: 201110062045.48689.rjw@sisk.pl
------- Original message -------
> From: Rafael J. Wysocki
>> I get a kernel panic on a test box using a x86_64 kernel with this patch
>> applied.
>
> The panic happens during late resume, when trying to switch to the
> hibernated
> kernel.
In an effort to test this whole thing a bit more, I took today's kernel
from Linus' repo and applied v11 of my patch. I compiled this on a single
cpu machine this time, with 768 MB of memory (in today's terms, this laptop
would not pass as a smartphone :-), running F-16 beta.. The system has
radeon graphics (my other system, where I initially developed the patch,
has intel). Also, this was a 32-bit box, as opposed to my other system,
which is 64-bit.
I was getting kernel trouble on repeated hibernate/thaw cycles on both
systems when KMS was enabled. With nomodeset passed into the kernel, both
systems would go through 50+ cycles (this was my test loop) with no
trouble. Whether my patch was applied or not didn't matter - I was getting
trouble with Fedora supplied kernels as well, after a few cycles.
So, I don't know for sure, but it seems to me something is amiss in KMS
when it comes to hibernation.
--
Bojan
next prev parent reply other threads:[~2011-10-13 11:00 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-30 0:27 [PATCH v8]: Improve performance of LZO/plain hibernation Bojan Smojver
2011-10-04 22:07 ` Rafael J. Wysocki
2011-10-05 1:07 ` Bojan Smojver
2011-10-06 18:37 ` Rafael J. Wysocki
2011-10-06 18:45 ` Rafael J. Wysocki
2011-10-06 22:23 ` Bojan Smojver
2011-10-07 3:20 ` Bojan Smojver
2011-10-07 3:39 ` Bojan Smojver
2011-10-07 23:33 ` Bojan Smojver
2011-10-09 2:57 ` Bojan Smojver
2011-10-09 7:54 ` Bojan Smojver
2011-10-09 9:22 ` Pekka Enberg
2011-10-09 10:19 ` Bojan Smojver
2011-10-09 22:24 ` Bojan Smojver
2011-10-10 7:12 ` Bojan Smojver
2011-10-13 11:00 ` Bojan Smojver [this message]
2011-10-13 21:26 ` Rafael J. Wysocki
2011-10-13 21:44 ` Bojan Smojver
2011-10-13 21:57 ` Rafael J. Wysocki
2011-10-13 21:56 ` Bojan Smojver
2011-10-14 2:01 ` Bojan Smojver
2011-10-14 6:14 ` Pekka Enberg
2011-10-14 6:50 ` Bojan Smojver
2011-10-15 6:28 ` Bojan Smojver
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