From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <peterz@infradead.org>,
"Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>,
Rusty Russell <rusty@rustcorp.com.au>,
Namhyung Kim <namhyung@kernel.org>
Subject: Re: [Patch 0/7] Per cpu thread hotplug infrastructure - V3
Date: Mon, 16 Jul 2012 08:22:24 -0700 [thread overview]
Message-ID: <20120716152224.GF2403@linux.vnet.ibm.com> (raw)
In-Reply-To: <20120716103749.122800930@linutronix.de>
On Mon, Jul 16, 2012 at 10:42:34AM -0000, Thomas Gleixner wrote:
> The following series implements the infrastructure for parking and
> unparking kernel threads to avoid the full teardown and fork on cpu
> hotplug operations along with management infrastructure for hotplug
> and users.
>
> Changes vs. V2:
>
> Use callbacks for all functionality. Thanks to Rusty for pointing
> that out. It makes the use sites nice and simple and keeps all the
> code which would be duplicated otherwise on the core.
Hello, Thomas,
What version should I apply this patchset to? I tried v3.5-rc7, but
got lots of warnings (one shown below) and the watchdog patch did not
apply.
Thanx, Paul
------------------------------------------------------------------------
[ 0.280196] BUG: scheduling while atomic: ksoftirqd/1/7/0x00000004
[ 0.280968] Modules linked in:
[ 0.282064] Pid: 7, comm: ksoftirqd/1 Not tainted 3.5.0-rc7+ #1559
[ 0.283990] Call Trace:
[ 0.284987] [<c16314f1>] __schedule_bug+0x49/0x55
[ 0.285975] [<c1638e1a>] __schedule+0x6ca/0x780
[ 0.286977] [<c109b556>] ? rcu_process_callbacks+0x66/0x130
[ 0.288983] [<c10362c4>] ? __local_bh_enable+0x24/0x70
[ 0.289975] [<c105f02b>] ? default_wake_function+0xb/0x10
[ 0.291972] [<c1638fbe>] schedule+0x1e/0x50
[ 0.292969] [<c1639202>] schedule_preempt_disabled+0x12/0x20
[ 0.294975] [<c1075ff8>] smpboot_thread_fn+0xe8/0x240
[ 0.295968] [<c1075f10>] ? smpboot_register_percpu_thread+0xc0/0xc0
[ 0.295969] [<c104fe5f>] kthread+0x8f/0xa0
[ 0.295969] [<c104fdd0>] ? flush_kthread_worker+0x80/0x80
[ 0.295969] [<c163ffb6>] kernel_thread_helper+0x6/0xd
next prev parent reply other threads:[~2012-07-16 15:29 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-16 10:42 [Patch 0/7] Per cpu thread hotplug infrastructure - V3 Thomas Gleixner
2012-07-16 10:42 ` [Patch 1/7] rcu: Yield simpler Thomas Gleixner
2012-08-13 15:07 ` [tip:smp/hotplug] " tip-bot for Thomas Gleixner
2012-07-16 10:42 ` [Patch 3/7] smpboot: Provide infrastructure for percpu hotplug threads Thomas Gleixner
2012-07-21 9:26 ` Srivatsa S. Bhat
2012-07-21 18:01 ` Srivatsa S. Bhat
2012-07-21 17:12 ` Paul E. McKenney
2012-08-13 15:10 ` [tip:smp/hotplug] " tip-bot for Thomas Gleixner
2012-09-19 21:47 ` [Patch 3/7] " Sasha Levin
2012-10-12 1:39 ` Sasha Levin
2012-07-16 10:42 ` [Patch 2/7] kthread: Implement park/unpark facility Thomas Gleixner
2012-07-21 9:31 ` Srivatsa S. Bhat
2012-08-13 15:08 ` [tip:smp/hotplug] " tip-bot for Thomas Gleixner
2012-07-16 10:42 ` [Patch 4/7] softirq: Use hotplug thread infrastructure Thomas Gleixner
2012-07-21 17:21 ` Paul E. McKenney
2012-07-23 21:15 ` Paul E. McKenney
2012-07-25 14:21 ` JoonSoo Kim
2012-08-13 15:12 ` [tip:smp/hotplug] " tip-bot for Thomas Gleixner
2012-07-16 10:42 ` [Patch 6/7] rcu: Use smp_hotplug_thread facility for RCUs per-CPU kthread Thomas Gleixner
2012-07-16 16:59 ` Paul E. McKenney
2012-08-13 15:13 ` [tip:smp/hotplug] " tip-bot for Paul E. McKenney
2012-07-16 10:42 ` [Patch 5/7] watchdog: Use hotplug thread infrastructure Thomas Gleixner
2012-08-13 15:13 ` [tip:smp/hotplug] " tip-bot for Thomas Gleixner
2012-08-14 7:20 ` viresh kumar
2012-08-14 8:42 ` Thomas Gleixner
2012-07-16 10:42 ` [Patch 7/7] infiniband: ehca: " Thomas Gleixner
2012-07-17 0:27 ` Rusty Russell
2012-08-13 15:14 ` [tip:smp/hotplug] infiniband: Ehca: " tip-bot for Thomas Gleixner
2012-07-16 15:22 ` Paul E. McKenney [this message]
2012-07-18 17:36 ` [Patch 0/7] Per cpu thread hotplug infrastructure - V3 Srivatsa S. Bhat
2012-07-18 23:54 ` Paul E. McKenney
2012-07-20 13:17 ` Srivatsa S. Bhat
2012-07-20 14:35 ` Paul E. McKenney
2012-07-20 15:00 ` Srivatsa S. Bhat
2012-07-20 17:53 ` Paul E. McKenney
2012-07-20 18:28 ` Srivatsa S. Bhat
2012-07-25 12:25 ` Srivatsa S. Bhat
2012-07-25 14:25 ` JoonSoo Kim
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