linux-kernel - Re: [PATCH 1/2] x86, reboot: revert stop_other

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Message-ID: <20120507155209.GX32472@redhat.com>
Date:	Mon, 7 May 2012 11:52:09 -0400
From:	Don Zickus <dzickus@...hat.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	x86@...nel.org, LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH 1/2] x86, reboot: revert stop_other_cpus to using IRQ
 with NMI fallback

On Mon, May 07, 2012 at 03:10:21PM +0200, Ingo Molnar wrote:
> 
> * Don Zickus <dzickus@...hat.com> wrote:
> 
> > The end result of this more 
> > complicated-looking-diff-than-it-really-is, is a patch that 
> > mostly reverts
> > 
> > 3603a25 x86, reboot: Use NMI instead of REBOOT_VECTOR to stop cpus
> > 
> > and instead just sticks another if-case after the REBOOT_IRQ 
> > and checks to see if online_cpus are still > 1, and if so, 
> > clobber the rest of the cpus with an NMI.
> 
> Ok, would be nice to shape this as a 'dumb' revert as-is, and do 
> the simple change in a separate patch, or so. That makes it 
> easier to review (and easier to debug, should it break).

Heh.  I thought about that.  I can do that and resend.

Cheers,
Don
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