linux-kernel - Re: 2.6.33: ftrace triggers soft lockup

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Message-ID: <1267816057.10871.1781.camel@gandalf.stny.rr.com>
Date:	Fri, 05 Mar 2010 14:07:37 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Américo Wang <xiyou.wangcong@...il.com>,
	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>
Subject: Re: 2.6.33: ftrace triggers soft lockup

On Fri, 2010-03-05 at 19:43 +0100, Frederic Weisbecker wrote:

> Ouch...that's the hardirqs_off_events/redundant_hardirqs_off variables?
> Those should be clearly made per cpu.

Yeah, probably all the debug_atomic_inc(*) variables should be made
per-cpu. Should not be too hard since they are already wrapped in
macros.

-- Steve



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