From: Johannes Berg <johannes@sipsolutions.net>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: davej <davej@codemonkey.org.uk>,
linuxppc-dev list <linuxppc-dev@ozlabs.org>,
linux-pm <linux-pm@lists.linux-foundation.org>,
cpufreq <cpufreq@lists.linux.org.uk>
Subject: cpu frequency governor regression (?)
Date: Tue, 11 Dec 2007 19:52:45 +0100 [thread overview]
Message-ID: <1197399165.2214.15.camel@johannes.berg> (raw)
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Hi,
No idea who to bother with this and maybe it's just a
misconfiguration... Apologies if my guesses are totally wrong.
I'm currently on 2.6.24-rc3 (+wireless-2.6#everything) but couldn't find
any patches between that and 2.6.24-rc5 that seemed relevant.
On my quad powermac, I'm seeing the cpufreq governor changed by a
hibernation cycle. My default governor is "userspace", which is driven
by powernowd (because the latency is too high "ondemand" doesn't like my
machine) but after a hibernation cycle I'm having the governor set to
"performance".
I have no idea what code is resetting this and why this would happen,
maybe the fact that the CPUs are taken offline/online again is
responsible? It's well possible that there's a bug in our cpufreq driver
though I thought I fixed the multi-cpu issues it had. Any help would be
appreciated.
johannes
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next reply other threads:[~2007-12-12 17:12 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-11 18:52 Johannes Berg [this message]
2007-12-12 17:30 ` cpu frequency governor regression (?) Dave Jones
2007-12-12 17:35 ` Johannes Berg
2007-12-12 19:53 ` Johannes Berg
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