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Message-id: <B8EFE96D1287C24090BAD9D858E15E617305B4@sisaex02sj>
Date: Tue, 25 Jun 2013 19:59:28 +0000
From: Shuah Khan <shuah.kh@...sung.com>
To: Jesse Barnes <jbarnes@...tuousgeek.org>
Cc: Daniel Vetter <daniel.vetter@...ll.ch>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Chris Wilson <chris@...is-wilson.co.uk>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
"shuahkhan@...il.com" <shuahkhan@...il.com>,
Dave Airlie <airlied@...hat.com>,
intel-gfx <intel-gfx@...ts.freedesktop.org>,
Shuah Khan <shuah.kh@...sung.com>
Subject: Re: Linux 3.10-rc7
On 06/25/2013 01:52 PM, Jesse Barnes wrote:
> On Tue, 25 Jun 2013 21:37:37 +0200
> Daniel Vetter <daniel.vetter@...ll.ch> wrote:
>
>>
>> Adding more lists to cc + Jesse since he's the guilty one for the
>> vt-switchless state restore stuff.
>
> Yeah, looks like we don't fetch the PLL state on resume from hibernate,
> leading to this warning. The refcount is nonzero, indicating the pll
> is in use, but the active field is clear, which means we're missing an
> update somewhere.
>
> Shuah, just to confirm, does your resume actually work ok aside from
> the warning? I *think* it's harmless in this case, but does indicate a
> real bug in our state tracking... trying to come up with a patch now.
>
> Thanks,
>
Resume works just fine. I see it take longer for it to suspend compared
to 3.9.7 and then resumes just fine. Suspend taking longer very well
could be because of this warn_on. Other than this warn_on I haven't
noticed any other problems.
-- Shuah
Shuah Khan, Linux Kernel Developer - Open Source Group Samsung Research
America (Silicon Valley) shuah.kh@...sung.com | (970) 672-0658
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