linux-kernel - NOHZ: local_softirq

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Message-ID: <20120530214809.GA19223@redhat.com>
Date:	Wed, 30 May 2012 17:48:09 -0400
From:	Dave Jones <davej@...hat.com>
To:	tglx@...utronix.de
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: NOHZ: local_softirq_pending 08

Thomas,
I've been seeing these messages more and more lately.
When I start a kernel build for eg, it seems to spew regularly..

May 30 17:42:00 [ 1030.651976] NOHZ: local_softirq_pending 08
May 30 17:42:16 [ 1046.579491] NOHZ: local_softirq_pending 08
May 30 17:42:16 [ 1047.230344] NOHZ: local_softirq_pending 08
May 30 17:42:33 [ 1063.751879] NOHZ: local_softirq_pending 08
May 30 17:42:33 [ 1063.796340] NOHZ: local_softirq_pending 08
May 30 17:43:00 [ 1090.776493] NOHZ: local_softirq_pending 08
May 30 17:43:00 [ 1090.836544] NOHZ: local_softirq_pending 08
May 30 17:43:00 [ 1090.880271] NOHZ: local_softirq_pending 08
May 30 17:43:04 [ 1095.291939] NOHZ: local_softirq_pending 08
May 30 17:43:04 [ 1095.335659] NOHZ: local_softirq_pending 08



According to git, you ratelimited this back in 2007 with the message
"until we found the root cause of that problem."

Is this an old problem that has returned ?

Maybe interesting note: Both machines I see this on regularly are Atom cpus,
and it's always '08'.


	Dave
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