From: Gautham R Shenoy <ego@in.ibm.com>
To: linux-kernel@vger.kernel.org,
Zdenek Kabelac <zdenek.kabelac@gmail.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Oleg Nesterov <oleg@tv-sign.ru>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
"Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>,
Srivatsa Vaddagiri <vatsa@in.ibm.com>
Subject: [PATCH 0/8] CPU-Hotplug: Fix CPU-Hotplug <--> cpufreq locking dependency
Date: Tue, 29 Apr 2008 18:26:59 +0530 [thread overview]
Message-ID: <20080429125659.GA23562@in.ibm.com> (raw)
Hello everyone,
A couple of months ago Zdenek Kabelac had reported a Circular locking
dependency in resume, which was related to the locking dependency
between the cpufreq and CPU-Hotplug subsystems.
http://lkml.org/lkml/2008/2/26/479
This patchset aggregates the various patches that have been posted in
the recent past, to solve this problem.
There are a few more TODO items in CPU-Hotplug , unrelated to
this problem, that cropped up in the various discussions.
They will be posted in a seperate thread.
The patchstack has been lightly tested on a 4-way x86 machine with
CPU-Hotplug running in parallel with kernbench and changing cpufreq
governors simultaneously.
Awaiting your feedback,
gautham
next reply other threads:[~2008-04-29 12:57 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-29 12:56 Gautham R Shenoy [this message]
2008-04-29 12:57 ` [PATCH 1/8] lockdep: fix recursive read lock validation Gautham R Shenoy
2008-04-29 13:16 ` Bart Van Assche
2008-04-29 14:57 ` Peter Zijlstra
2008-04-29 15:03 ` Bart Van Assche
2008-04-29 15:15 ` Peter Zijlstra
2008-04-29 16:03 ` Bart Van Assche
2008-04-29 16:15 ` Peter Zijlstra
2008-04-29 16:29 ` Bart Van Assche
2008-04-29 17:04 ` Peter Zijlstra
2008-04-29 17:45 ` Bart Van Assche
2008-04-29 17:58 ` Peter Zijlstra
2008-04-29 12:58 ` [PATCH 2/8] lockdep: reader-in-writer recursion Gautham R Shenoy
2008-04-29 13:00 ` [PATCH 3/8] lockdep: fix fib_hash softirq inversion Gautham R Shenoy
2008-04-29 14:45 ` Peter Zijlstra
2008-04-29 13:01 ` [PATCH 4/8] net: af_netlink: deadlock Gautham R Shenoy
2008-04-29 13:19 ` Hans Reiser, reiserfs developer linux-os (Dick Johnson)
2008-04-29 13:02 ` [PATCH 5/8] cpu: cpu-hotplug deadlock Gautham R Shenoy
2008-04-29 14:33 ` Oleg Nesterov
2008-04-29 15:09 ` Peter Zijlstra
2008-04-29 16:45 ` Oleg Nesterov
2008-04-29 17:31 ` Peter Zijlstra
2008-04-30 5:37 ` Gautham R Shenoy
2008-04-30 11:43 ` Oleg Nesterov
2008-04-29 13:02 ` [PATCH 6/8] lockdep: annotate cpu_hotplug Gautham R Shenoy
2008-04-29 13:03 ` [PATCH 7/8] cpu_hotplug: Introduce try_get_online_cpus() Gautham R Shenoy
2008-04-29 13:05 ` [PATCH 8/8] cpufreq: Nest down_write/read(cpufreq_rwsem) within get_online_cpus()/put_online_cpus() Gautham R Shenoy
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