From: Thomas Renninger <trenn@suse.de>
To: kernel@stable.org
Cc: cpufreq@vger.kernel.org, linux-kernel@vger.kernel.org,
mingo@elte.hu, rjw@sisk.pl, hidave.darkstar@gmail.com,
penberg@cs.helsinki.fi, kernel-testers@vger.kernel.org,
davej@redhat.com, mathieu.desnoyers@polymtl.ca
Subject: Fix dead lock in cpufreq for CPU hotplug and suspend for 2.6.30.stable
Date: Thu, 25 Jun 2009 16:01:23 +0200 [thread overview]
Message-ID: <1245938485-12663-1-git-send-email-trenn@suse.de> (raw)
In-Reply-To: <20090623193215.GA31374@elte.hu>
This is about the dead locks happening since cancel_delayed_work_sync()
got added to the ondemand/conservative governors.
I truncated a bit the CC list to most important people and mailing lists.
The patch is intended for 2.6.30 stable, but both patches together did
not get tested yet. If someone could verify this working now that
would be great.
I first wanted to provide something for .31 and then backport, but
it wouldn't patch clean anymore anyway and I don't want to wait
any longer.
Rafael: These should solve the regression bug:
http://bugzilla.kernel.org/show_bug.cgi?id=13475
next prev parent reply other threads:[~2009-06-25 14:01 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-04 21:00 [PATCH] kvm: fix kvm reboot crash when MAXSMP is used Yinghai Lu
2009-06-04 21:01 ` [PATCH] cpumask: alloc blank cpumask left over Yinghai Lu
2009-06-05 4:58 ` Rusty Russell
2009-06-05 5:18 ` Avi Kivity
2009-06-05 5:56 ` Yinghai Lu
2009-06-05 13:41 ` Rusty Russell
2009-06-05 17:34 ` Linus Torvalds
2009-06-05 17:46 ` Yinghai Lu
2009-06-05 17:57 ` Yinghai Lu
2009-06-06 23:40 ` Rusty Russell
2009-06-06 23:43 ` Rusty Russell
2009-06-06 9:22 ` Avi Kivity
2009-06-06 9:36 ` Yinghai Lu
2009-06-06 9:39 ` Avi Kivity
2009-06-06 10:57 ` Yinghai Lu
2009-06-06 21:50 ` [PATCH 1/6] cpumask: introduce zalloc_cpumask_var Yinghai Lu
2009-06-06 21:51 ` Subject: [PATCH 2/6] cpumask: alloc zeroed cpumask for static cpumask_var_ts Yinghai Lu
2009-06-06 21:52 ` [PATCH 3/6] kvm: fix kvm reboot crash when MAXSMP is used Yinghai Lu
2009-06-06 21:53 ` [PATCH 4/6] x86/cpufreq: use cpumask_copy instead of = Yinghai Lu
2009-06-09 6:57 ` Rusty Russell
2009-06-09 8:13 ` Yinghai Lu
2009-06-10 4:20 ` Rusty Russell
2009-06-10 13:39 ` Dave Jones
2009-06-10 17:01 ` Ingo Molnar
2009-06-09 15:46 ` Linus Torvalds
2009-06-09 16:28 ` Dave Jones
2009-06-09 16:41 ` Linus Torvalds
2009-06-10 4:55 ` Rusty Russell
2009-06-10 6:22 ` Rusty Russell
2009-06-10 11:10 ` S06cpuspeed/2637 is trying to acquire lock (&(&dbs_info->work)->work (was: Re: [PATCH 4/6] x86/cpufreq: use cpumask_copy instead of =) Ingo Molnar
2009-06-10 20:58 ` Dave Jones
2009-06-11 10:52 ` Ingo Molnar
2009-06-20 12:48 ` Ingo Molnar
2009-06-21 19:55 ` Thomas Renninger
2009-06-23 18:17 ` [PATCH] cpufreq: remove dbs_mutex Ingo Molnar
2009-06-23 18:40 ` Ingo Molnar
2009-06-23 18:51 ` Pallipadi, Venkatesh
2009-06-23 19:14 ` Ingo Molnar
2009-06-23 19:24 ` Pallipadi, Venkatesh
2009-06-23 19:32 ` Ingo Molnar
2009-06-25 14:01 ` Thomas Renninger [this message]
2009-06-25 14:06 ` Fix dead lock in cpufreq for CPU hotplug and suspend for 2.6.30.stable Thomas Renninger
2009-06-25 14:01 ` [PATCH 1/2] CPUFREQ: Remove unneeded dbs_mutexes from ondemand and conservative governors Thomas Renninger
2009-06-25 14:25 ` Mathieu Desnoyers
2009-06-25 15:03 ` Pallipadi, Venkatesh
2009-06-25 22:17 ` Thomas Renninger
2009-06-25 22:26 ` Thomas Renninger
2009-06-30 6:33 ` Pavel Machek
2009-07-03 10:10 ` Thomas Renninger
2009-07-05 19:46 ` Pavel Machek
2009-06-30 22:58 ` [stable] " Greg KH
2009-06-30 23:14 ` Mathieu Desnoyers
2009-06-30 23:39 ` Greg KH
2009-07-01 9:07 ` Thomas Renninger
2009-06-25 14:01 ` [PATCH 2/2] remove rwsem lock from CPUFREQ_GOV_STOP call (second call site) Thomas Renninger
2009-06-10 19:42 ` [PATCH 4/6] x86/cpufreq: use cpumask_copy instead of = Langsdorf, Mark
2009-06-11 2:34 ` Rusty Russell
2009-09-21 16:44 ` Langsdorf, Mark
2009-06-06 21:55 ` [PATCH 5/6] core: use cpumask_copy instead of = for cpus_allowed in fork Yinghai Lu
2009-06-06 21:56 ` [PATCH 6/6] x86/cpufreq: don't use SPEEDSTEP with MAXSMP Yinghai Lu
2009-06-06 21:56 ` [PATCH 1/6] cpumask: introduce zalloc_cpumask_var Andrew Morton
2009-06-06 22:07 ` Yinghai Lu
2009-06-06 21:58 ` Linus Torvalds
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