From: Steven Rostedt <rostedt@goodmis.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: "Lai Jiangshan" <laijs@cn.fujitsu.com>,
"Frederic Weisbecker" <fweisbec@gmail.com>,
"Américo Wang" <xiyou.wangcong@gmail.com>,
LKML <linux-kernel@vger.kernel.org>,
"Ingo Molnar" <mingo@elte.hu>, "Li Zefan" <lizf@cn.fujitsu.com>
Subject: Re: 2.6.33: ftrace triggers soft lockup
Date: Mon, 15 Mar 2010 12:16:03 -0400 [thread overview]
Message-ID: <1268669763.4471.810.camel@gandalf.stny.rr.com> (raw)
In-Reply-To: <1268663990.4471.808.camel@gandalf.stny.rr.com>
On Mon, 2010-03-15 at 10:39 -0400, Steven Rostedt wrote:
> > As I said in the offline mail, this warning is caused by global trace_clock,
> > and I sent a fix sometime ago:
> >
> > http://lkml.org/lkml/2009/12/21/4
>
> Ah, I was waiting for a final Acked-by: from Peter Zijlstra.
>
> Peter,
>
> Should I pull in that patch? I don't see anything wrong with converting
> a raw_local_irq_save() to a local_irq_save() in the tracing code. I'll
> apply it locally and see if it fixes the warn on that I see.
Peter,
I ran the stress test for an hour without any lockdep warnings with Li's
patch. Normally it would trigger in a second. Can I get your acked-by?
Thanks,
-- Steve
next prev parent reply other threads:[~2010-03-15 16:16 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-03 6:04 Américo Wang
2010-03-03 13:05 ` Steven Rostedt
2010-03-04 2:58 ` Américo Wang
2010-03-04 1:33 ` Li Zefan
2010-03-04 1:46 ` Frederic Weisbecker
2010-03-04 3:01 ` Américo Wang
2010-03-04 3:18 ` Steven Rostedt
2010-03-04 4:06 ` Frederic Weisbecker
2010-03-04 5:10 ` Américo Wang
2010-03-04 5:18 ` Frederic Weisbecker
2010-03-04 13:54 ` Steven Rostedt
2010-03-05 4:14 ` Américo Wang
2010-03-05 7:16 ` Américo Wang
2010-03-05 15:06 ` Steven Rostedt
2010-03-05 17:16 ` Frederic Weisbecker
2010-03-05 18:35 ` Steven Rostedt
2010-03-05 18:43 ` Frederic Weisbecker
2010-03-05 19:07 ` Steven Rostedt
2010-03-08 7:32 ` Li Zefan
2010-03-08 15:15 ` Steven Rostedt
2010-03-09 2:11 ` Li Zefan
2010-03-09 2:23 ` Steven Rostedt
2010-03-09 3:38 ` Li Zefan
2010-03-12 19:20 ` Steven Rostedt
2010-03-12 21:38 ` Steven Rostedt
2010-03-13 2:07 ` Steven Rostedt
2010-03-13 5:37 ` Américo Wang
2010-03-13 5:51 ` Steven Rostedt
2010-03-14 16:55 ` Steven Rostedt
2010-03-13 17:56 ` Steven Rostedt
2010-03-15 1:46 ` Li Zefan
2010-03-15 14:39 ` Steven Rostedt
2010-03-15 16:16 ` Steven Rostedt [this message]
2010-03-08 2:31 ` Américo Wang
2010-03-09 2:40 ` Américo Wang
2010-03-09 2:51 ` Steven Rostedt
2010-03-09 5:06 ` Américo Wang
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