linux-kernel - Re: [BUG] WARNING: at kernel/trace/ring

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Date:	Tue, 09 Mar 2010 13:46:12 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Lai Jiangshan <laijs@...fujitsu.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Li Zefan <lizf@...fujitsu.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"Paul E. McKenney" <paulmck@...ibm.com>
Subject: Re: [BUG] WARNING: at kernel/trace/ring_buffer.c:3420

On Tue, 2010-03-09 at 12:28 -0500, Steven Rostedt wrote:
> On Tue, 2010-03-09 at 11:35 +0800, Lai Jiangshan wrote:

> With Li's test, I was able to trigger the ring_buffer warning about
> resetting while committing. I was still able to trigger it with your
> patch to move the ring buffer disable code. But I did not trigger it
> with both the ring buffer disable code _and_ your RCU fix.

Spoke too soon. I hit it again. But I think I know why.

-- Steve



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