From: David Miller <davem@davemloft.net>
To: andi@firstfloor.org
Cc: linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org
Subject: Re: NMI watchdog + NOHZ question
Date: Wed, 24 Jun 2009 01:51:26 -0700 (PDT) [thread overview]
Message-ID: <20090624.015126.193707604.davem@davemloft.net> (raw)
In-Reply-To: <20090624075342.GL6760@one.firstfloor.org>
From: Andi Kleen <andi@firstfloor.org>
Date: Wed, 24 Jun 2009 09:53:42 +0200
>> > Ah you have a one shot timer and it gets rescheduled in the softirq?
>> > If yes why not in doing that directly in the hardirq handler?
>>
>> Then what's the point of the generic timer code supporting one-shot
>> clock sources? :-)
>
> Well it would avoid that problem at least (I think based on your
> description). Somehow you need to reschedule the timer before the softirq.
>
> I guess you could have a generic function that is callable from hardirq
> directly?
I'll think a bit more about this, thanks Andi.
next prev parent reply other threads:[~2009-06-24 8:51 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-22 7:27 NMI watchdog + NOHZ question David Miller
2009-06-22 8:18 ` Andi Kleen
2009-06-22 9:27 ` David Miller
2009-06-24 0:17 ` David Miller
2009-06-24 7:03 ` Andi Kleen
2009-06-24 7:08 ` David Miller
2009-06-24 7:15 ` Andi Kleen
2009-06-24 7:17 ` David Miller
2009-06-24 7:53 ` Andi Kleen
2009-06-24 8:51 ` David Miller [this message]
2009-06-24 9:44 ` David Miller
2009-06-24 10:23 ` Andi Kleen
2009-06-24 10:32 ` David Miller
2009-06-24 10:52 ` Andi Kleen
2009-06-24 10:59 ` David Miller
2009-06-24 11:10 ` Andi Kleen
2009-09-03 9:36 ` David Miller
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