linux-kernel - Re: [PATCH 1/1] i386: fix a hang on stuck nmi watchdog

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Message-Id: <1188685651.11196.21.camel@dhcp193.mvista.com>
Date:	Sat, 01 Sep 2007 15:27:30 -0700
From:	Daniel Walker <dwalker@...sta.com>
To:	Andi Kleen <ak@...e.de>
Cc:	akpm@...ux-foundation.org, eranian@....hp.com, B.Steinbrink@....de,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] i386: fix a hang on stuck nmi watchdog

On Sat, 2007-09-01 at 23:45 +0200, Andi Kleen wrote:
> On Saturday 01 September 2007 22:54:17 Daniel Walker wrote:
> > In the case when an nmi gets stucks the endflag stays equal to zero. This
> > causes the busy looping on other cpus to continue, even tho the nmi test
> > is done.
> > 
> > On my machine with out the change below the system would hang right after
> > check_nmi_watchdog(). The change below just sets endflag prior to checking
> > if the test was successful or not.
> > 
> > Signed-off-by: Daniel Walker <dwalker@...sta.com>
> 
> Added thanks. I guess it's .23 material.

putting it in 2.6.23 seems appropriate .. Stephane's patch might be good
for 2.6.23 too .. 

Daniel

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