From: Tejun Heo <teheo@suse.de>
To: Oleg Nesterov <oleg@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
Thomas Gleixner <tglx@linutronix.de>,
Mike Galbraith <efault@gmx.de>, Ingo Molnar <mingo@elte.hu>,
LKML <linux-kernel@vger.kernel.org>,
pm list <linux-pm@lists.linux-foundation.org>,
Greg KH <gregkh@suse.de>, Jesse Barnes <jbarnes@virtuousgeek.org>,
Andi Kleen <ak@linux.intel.com>
Subject: Re: GPF in run_workqueue()/list_del_init(cwq->worklist.next) on resume
Date: Mon, 16 Nov 2009 20:01:33 +0900 [thread overview]
Message-ID: <4B01310D.3020609@suse.de> (raw)
In-Reply-To: <4AFC5E96.1020609@kernel.org>
11/13/2009 04:14 AM, Tejun Heo wrote:
>>> making flush_work() behave as
>>> flush_work_sync() by default should be doable without too much
>>> overhead. I'll give it a shot.
Aieee... my estimate for cross cpu work queueing was way off.
Queueing on different cpus is very common - sometimes more so than on
the same cpu, so it looks like this can't be done without adding
significant overhead to queueing path. Giving up. :-(
Thanks.
--
tejun
next prev parent reply other threads:[~2009-11-16 11:01 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-09 11:50 Help needed: Resume problems in 2.6.32-rc, perhaps related to preempt_count leakage in keventd Rafael J. Wysocki
2009-11-09 12:02 ` Ingo Molnar
2009-11-09 12:24 ` Rafael J. Wysocki
2009-11-09 12:49 ` Ingo Molnar
2009-11-09 14:02 ` Thomas Gleixner
2009-11-09 14:16 ` Mike Galbraith
2009-11-09 14:27 ` Rafael J. Wysocki
2009-11-09 14:30 ` Mike Galbraith
2009-11-09 15:47 ` Rafael J. Wysocki
2009-11-09 16:19 ` Mike Galbraith
2009-11-09 17:36 ` Rafael J. Wysocki
2009-11-09 18:50 ` Thomas Gleixner
2009-11-09 20:00 ` Rafael J. Wysocki
2009-11-09 20:31 ` [linux-pm] " Alan Stern
2009-11-09 20:48 ` Rafael J. Wysocki
2009-11-09 21:24 ` Alan Stern
2009-11-09 20:45 ` GPF in run_workqueue()/list_del_init(cwq->worklist.next) on resume (was: Re: Help needed: Resume problems in 2.6.32-rc, perhaps related to preempt_count leakage in keventd) Rafael J. Wysocki
2009-11-09 21:42 ` Linus Torvalds
2009-11-10 0:19 ` Rafael J. Wysocki
2009-11-10 22:02 ` Linus Torvalds
2009-11-11 8:08 ` GPF in run_workqueue()/list_del_init(cwq->worklist.next) on resume Tejun Heo
2009-11-11 18:13 ` Oleg Nesterov
2009-11-12 4:56 ` Tejun Heo
2009-11-12 18:35 ` Oleg Nesterov
2009-11-12 19:14 ` Tejun Heo
2009-11-16 11:01 ` Tejun Heo [this message]
2009-11-11 11:52 ` GPF in run_workqueue()/list_del_init(cwq->worklist.next) on resume (was: Re: Help needed: Resume problems in 2.6.32-rc, perhaps related to preempt_count leakage in keventd) Rafael J. Wysocki
2009-11-11 19:52 ` Linus Torvalds
2009-11-11 20:18 ` Marcel Holtmann
2009-11-11 20:25 ` Linus Torvalds
2009-11-11 21:18 ` Rafael J. Wysocki
2009-11-11 21:13 ` Oliver Neukum
2009-11-11 21:38 ` Linus Torvalds
2009-11-11 21:44 ` Oliver Neukum
2009-11-11 16:13 ` Oleg Nesterov
2009-11-11 20:00 ` Rafael J. Wysocki
2009-11-11 20:11 ` Linus Torvalds
2009-11-11 20:20 ` Marcel Holtmann
2009-11-11 20:24 ` Oleg Nesterov
2009-11-11 21:15 ` Oliver Neukum
2009-11-11 17:17 ` Oleg Nesterov
2009-11-12 17:33 ` Thomas Gleixner
2009-11-12 19:17 ` GPF in run_workqueue()/list_del_init(cwq->worklist.next) on resume Tejun Heo
2009-11-12 20:53 ` Thomas Gleixner
2009-11-12 20:53 ` GPF in run_workqueue()/list_del_init(cwq->worklist.next) on resume (was: Re: Help needed: Resume problems in 2.6.32-rc, perhaps related to preempt_count leakage in keventd) Rafael J. Wysocki
2009-11-12 20:55 ` Thomas Gleixner
2009-11-12 22:55 ` Rafael J. Wysocki
2009-11-12 23:08 ` Thomas Gleixner
2009-11-15 23:37 ` Frederic Weisbecker
2009-11-15 23:40 ` Frederic Weisbecker
2009-11-09 19:13 ` Help needed: Resume problems in 2.6.32-rc, perhaps related to preempt_count leakage in keventd Thomas Gleixner
2009-11-09 20:03 ` Rafael J. Wysocki
2009-11-09 14:26 ` Rafael J. Wysocki
2009-11-09 14:44 ` Mike Galbraith
2009-11-09 15:47 ` Rafael J. Wysocki
2009-11-09 15:57 ` Linus Torvalds
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