linux-kernel - Re: [patch-mm 06/23] clockevents: Fix resume logic

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Message-Id: <1181469090.384.6.camel@chaos>
Date:	Sun, 10 Jun 2007 11:51:30 +0200
From:	Thomas Gleixner <tglx@...utronix.de>
To:	nigel@...el.suspend2.net
Cc:	LKML <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...l.org>,
	Ingo Molnar <mingo@...e.hu>, Andi Kleen <ak@...e.de>,
	Arjan van de Ven <arjan@...radead.org>,
	Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>,
	Chris Wright <chrisw@...s-sol.org>
Subject: Re: [patch-mm 06/23] clockevents: Fix resume logic

On Sun, 2007-06-10 at 19:43 +1000, Nigel Cunningham wrote:
> Hi Thomas.
> 
> On Sun, 2007-06-10 at 09:44 +0000, Thomas Gleixner wrote:
> > plain text document attachment (clockevents-fix-resume-logic.patch)
> > We need to make sure, that the clockevent devices are resumed, before
> > the tick is resumed. The current resume logic does not guarantee this.
> > 
> > Add CLOCK_EVT_MODE_RESUME and call the set mode functions of the clock
> > event devices before resuming the tick / oneshot functionality.
> > 
> > Fixup the existing users.
> 
> What are the implications of the issue for current (i386) users? (Could
> suspend/hibernation be broken in any way without this patch?)

I have one box, which needs this patch.

OTOH it breaks Andrew's jinxed VAIO in a very mysterious way:
http://lkml.org/lkml/2007/6/9/158

	tglx


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