linux-kernel - Re: Yet more softlockups.

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Message-ID: <20130710154029.GB11309@redhat.com>
Date:	Wed, 10 Jul 2013 11:40:29 -0400
From:	Dave Jones <davej@...hat.com>
To:	Markus Trippelsdorf <markus@...ppelsdorf.de>
Cc:	Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Peter Anvin <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: Yet more softlockups.

On Wed, Jul 10, 2013 at 05:20:15PM +0200, Markus Trippelsdorf wrote:
 > On 2013.07.10 at 11:13 -0400, Dave Jones wrote:
 > > I get this right after booting..
 > > 
 > > [  114.516619] perf samples too long (4262 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
 > 
 > You can disable this warning by:
 > 
 > echo 0 > /proc/sys/kernel/perf_cpu_time_max_percent

Yes, but why is this even being run when I'm not running perf ?

The only NMI source running should be the watchdog.

	Dave

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