From: Thomas Gleixner <tglx@linutronix.de>
To: "Uwe Kleine-König" <Uwe.Kleine-Koenig@digi.com>
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>
Subject: Re: NOHZ: local_softirq_pending 20
Date: Fri, 23 Nov 2007 13:30:15 +0100 (CET) [thread overview]
Message-ID: <alpine.LFD.0.9999.0711231323490.26417@localhost.localdomain> (raw)
In-Reply-To: <20071123112442.GA12047@bre-cln-ukleine.digi.com>
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On Fri, 23 Nov 2007, Uwe Kleine-König wrote:
> my kernel reported:
>
> NOHZ: local_softirq_pending 20
Thats TASKLET_SOFTIRQ
> I cannot interpret it, but probably this is bad, because before
> bc5393a6c9c0e70b4b43fb2fb63e3315e9a15c8f this used to BUG().
We removed the BUG, because it's a situation where the kernel can
easily recover. It should never happen that the kernel goes to sleep
with a pending softirq, but it's not a fatal error.
> This happend while having a high load. Up to now it only happend once
> and I cannot reproduce it.
That's hard to tell then. Without a reproducible test case I can not
do much to help debugging this.
tglx
next prev parent reply other threads:[~2007-11-23 12:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-23 11:24 Uwe Kleine-König
2007-11-23 12:30 ` Thomas Gleixner [this message]
2007-11-23 14:33 ` Uwe Kleine-König
2008-02-02 11:45 ` rcu_process_callbacks pending in tick_nohz_stop_sched_tick (Was: NOHZ: local_softirq_pending 20) Uwe Kleine-König
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