linux-kernel - Re: [BUG] local_softirq

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Message-Id: <1179601868.12981.127.camel@chaos>
Date:	Sat, 19 May 2007 21:11:08 +0200
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Anant Nitya <kernel@...chanda.info>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>
Subject: Re: [BUG] local_softirq_pending storm

On Sat, 2007-05-19 at 15:25 +0530, Anant Nitya wrote:
> > No idea. I uploaded a debug patch against 2.6.22-rc1 to
> >
> > http://www.tglx.de/private/tglx/2.6.22-rc1-hrt-debug.patch
> >
> > Can you give it a try and report the output ?
> Hi
> Here it goes 
> [  159.646196] NOHZ softirq pending 22 on CPU 0
> [  159.646207] .... task state: 1 00000000

1 == TASK_INTERRUPTIBLE, so we know that ksoftirqd was not woken up. At
least it is not a scheduler problem.

I work out a more complex debug patch and pester you to test once I'm
done.

	tglx



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