linux-kernel - Re: [PATCH 3/3] softlockup: fix watchdog task wakeup frequency

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Message-ID: <20080630130837.GA332@elte.hu>
Date:	Mon, 30 Jun 2008 15:08:37 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Johannes Weiner <hannes@...urebad.de>
Cc:	linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH 3/3] softlockup: fix watchdog task wakeup frequency


* Johannes Weiner <hannes@...urebad.de> wrote:

> > +	/*
> > +	 * Wake up the high-prio watchdog task twice per
> > +	 * threshold timespan.
> > +	 */
> > +	if (now > touch_timestamp + softlockup_thresh/2)
> >  		wake_up_process(per_cpu(watchdog_task, this_cpu));
> 
> That defeats patch 1/3 and I think it can be dropped (#1).

applied this updated patch to tip/core/softlockup. #3 didnt apply - 
could you send a delta patch against tip/core/softlockup please? You can 
pick it up via:

  http://people.redhat.com/mingo/tip.git/README

do:

  git-checkout -b core/softlockup tip/core/softlockup

to check it out.

	Ingo
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