From: bugzilla-daemon@bugzilla.kernel.org
To: cpufreq@vger.kernel.org
Subject: [Bug 19702] i5-450M CPU gets stuck in low/lowest state
Date: Fri, 15 Oct 2010 10:07:17 GMT [thread overview]
Message-ID: <201010151007.o9FA7H0c008563@demeter1.kernel.org> (raw)
In-Reply-To: <bug-19702-12968@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=19702
Thomas Renninger <trenn@suse.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |ASSIGNED
CC| |a.p.zijlstra@chello.nl,
| |mingo@elte.hu, rjw@sisk.pl
--- Comment #12 from Thomas Renninger <trenn@suse.de> 2010-10-15 10:07:06 ---
Thanks!
So it looks like we have a regression in 2.6.35 kernel which got fixed between
2.6.36-rc6-git2 and 2.6.36-rc7-git3.
It affects idle/busy/io CPU accounting in way that cpufreq ondemand governor
does not switch up frequency (only with the workaround by dramatically
decreasing up_threshold tunable).
The fix seem not to be in any cpufreq related code (According to Heinz, I
didn't double check, but haven't seen anything on the cpufreq list lately).
Rafael/Ingo/Peter: Do you have an idea which patch could have solved this
issue.
This should probably go to .35 stable...
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next prev parent reply other threads:[~2010-10-15 10:07 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-19702-12968@https.bugzilla.kernel.org/>
2010-10-04 6:42 ` [Bug 19702] i5-450M CPU gets stuck in low/lowest state bugzilla-daemon
2010-10-04 6:43 ` bugzilla-daemon
2010-10-04 6:44 ` bugzilla-daemon
2010-10-08 5:26 ` bugzilla-daemon
2010-10-08 12:59 ` bugzilla-daemon
2010-10-08 19:04 ` bugzilla-daemon
2010-10-08 19:06 ` bugzilla-daemon
2010-10-12 11:19 ` bugzilla-daemon
2010-10-14 5:56 ` bugzilla-daemon
2010-10-14 5:58 ` bugzilla-daemon
2010-10-14 9:11 ` bugzilla-daemon
2010-10-14 9:22 ` bugzilla-daemon
2010-10-14 15:20 ` bugzilla-daemon
2010-10-15 10:07 ` bugzilla-daemon [this message]
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2010-11-08 12:49 ` bugzilla-daemon
2010-11-09 17:38 ` bugzilla-daemon
2010-11-10 11:18 ` bugzilla-daemon
2010-11-10 12:51 ` bugzilla-daemon
2011-07-31 17:58 ` bugzilla-daemon
2011-08-01 7:35 ` bugzilla-daemon
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2011-08-12 13:20 ` bugzilla-daemon
2011-08-15 15:04 ` bugzilla-daemon
2011-08-15 15:08 ` bugzilla-daemon
2012-06-18 19:11 ` bugzilla-daemon
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