From: Ingo Molnar <mingo@elte.hu>
To: tip-bot for Mike Galbraith <efault@gmx.de>
Cc: linux-tip-commits@vger.kernel.org, linux-kernel@vger.kernel.org,
hpa@zytor.com, mingo@redhat.com, peterz@infradead.org,
arjan@infradead.org, stable@kernel.org, tglx@linutronix.de
Subject: Re: [tip:sched/core] sched: Check for an idle shared cache in select_task_rq_fair()
Date: Thu, 5 Nov 2009 10:30:16 +0100 [thread overview]
Message-ID: <20091105093016.GA18892@elte.hu> (raw)
In-Reply-To: <tip-a1f84a3ab8e002159498814eaa7e48c33752b04b@git.kernel.org>
* tip-bot for Mike Galbraith <efault@gmx.de> wrote:
> Commit-ID: a1f84a3ab8e002159498814eaa7e48c33752b04b
> Gitweb: http://git.kernel.org/tip/a1f84a3ab8e002159498814eaa7e48c33752b04b
> Author: Mike Galbraith <efault@gmx.de>
> AuthorDate: Tue, 27 Oct 2009 15:35:38 +0100
> Committer: Ingo Molnar <mingo@elte.hu>
> CommitDate: Wed, 4 Nov 2009 18:46:22 +0100
>
> sched: Check for an idle shared cache in select_task_rq_fair()
-tip testing found that this causes problems:
[ 26.804000] BUG: using smp_processor_id() in preemptible [00000000] code: events/1/10
[ 26.808000] caller is vmstat_update+0x26/0x70
[ 26.812000] Pid: 10, comm: events/1 Not tainted 2.6.32-rc5 #6887
[ 26.816000] Call Trace:
[ 26.820000] [<c1924a24>] ? printk+0x28/0x3c
[ 26.824000] [<c13258a0>] debug_smp_processor_id+0xf0/0x110
[ 26.824000] mount used greatest stack depth: 1464 bytes left
[ 26.828000] [<c111d086>] vmstat_update+0x26/0x70
[ 26.832000] [<c1086418>] worker_thread+0x188/0x310
[ 26.836000] [<c10863b7>] ? worker_thread+0x127/0x310
[ 26.840000] [<c108d310>] ? autoremove_wake_function+0x0/0x60
[ 26.844000] [<c1086290>] ? worker_thread+0x0/0x310
[ 26.848000] [<c108cf0c>] kthread+0x7c/0x90
[ 26.852000] [<c108ce90>] ? kthread+0x0/0x90
[ 26.856000] [<c100c0a7>] kernel_thread_helper+0x7/0x10
[ 26.860000] BUG: using smp_processor_id() in preemptible [00000000] code: events/1/10
[ 26.864000] caller is vmstat_update+0x3c/0x70
oh ... doesnt it break cpus_allowed?
Ingo
next prev parent reply other threads:[~2009-11-05 9:31 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-24 19:58 [PATCH 1/3] sched: Enable wake balancing for the SMT/HT domain Arjan van de Ven
2009-10-24 20:04 ` [PATCH 2/3] sched: Add aggressive load balancing for certain situations Arjan van de Ven
2009-10-24 20:07 ` [PATCH 3/3] sched: Disable affine wakeups by default Arjan van de Ven
2009-10-25 6:55 ` Mike Galbraith
2009-10-25 16:51 ` Arjan van de Ven
2009-10-25 17:38 ` Mike Galbraith
2009-10-25 19:33 ` Arjan van de Ven
2009-10-25 22:04 ` Mike Galbraith
2009-10-26 1:53 ` Peter Zijlstra
2009-10-26 4:38 ` Mike Galbraith
2009-10-26 4:52 ` Arjan van de Ven
2009-10-26 5:08 ` Mike Galbraith
2009-10-26 5:36 ` Arjan van de Ven
2009-10-26 5:47 ` Mike Galbraith
2009-10-26 5:57 ` Mike Galbraith
2009-10-26 7:01 ` Ingo Molnar
2009-10-26 7:05 ` Arjan van de Ven
2009-10-26 11:33 ` Suresh Siddha
2009-11-10 21:59 ` Peter Zijlstra
2009-11-11 6:01 ` Arjan van de Ven
2009-10-27 14:35 ` Mike Galbraith
2009-10-28 7:25 ` Mike Galbraith
2009-10-28 18:36 ` Mike Galbraith
2009-11-04 19:33 ` [tip:sched/core] sched: Check for an idle shared cache in select_task_rq_fair() tip-bot for Mike Galbraith
2009-11-04 20:37 ` Mike Galbraith
2009-11-04 21:41 ` Mike Galbraith
2009-11-05 9:30 ` Ingo Molnar [this message]
2009-11-05 9:57 ` Mike Galbraith
2009-11-05 10:00 ` Mike Galbraith
2009-11-06 7:09 ` [tip:sched/core] sched: Fix affinity logic " tip-bot for Mike Galbraith
2009-10-26 5:21 ` [PATCH 3/3] sched: Disable affine wakeups by default Mike Galbraith
2009-10-25 8:01 ` Peter Zijlstra
2009-10-25 8:01 ` [PATCH 2/3] sched: Add aggressive load balancing for certain situations Peter Zijlstra
2009-10-25 11:48 ` Peter Zijlstra
2009-10-25 8:03 ` [PATCH 1/3] sched: Enable wake balancing for the SMT/HT domain Peter Zijlstra
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