linux-kernel - Re: [PATCH] x86: fix app crashes after SMP resume

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Message-ID: <Pine.LNX.4.64.0805131846050.19931@blonde.site>
Date:	Tue, 13 May 2008 18:47:33 +0100 (BST)
From:	Hugh Dickins <hugh@...itas.com>
To:	"Carlos R. Mafra" <crmafra2@...il.com>
cc:	Glauber Costa <gcosta@...hat.com>,
	Glauber Costa <glommer@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	"Theodore Ts'o" <tytso@....edu>, "Rafael J. Wysocki" <rjw@...k.pl>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86: fix app crashes after SMP resume

On Tue, 13 May 2008, Carlos R. Mafra wrote:
> On Tue 13.May'08 at 14:26:57 +0100, Hugh Dickins wrote:
> > After resume on a 2cpu laptop, kernel builds collapse with a sed hang,
> > sh or make segfault (often on 20295564), real-time signal to cc1 etc.
> > [...] 
> > Signed-off-by: Hugh Dickins <hugh@...itas.com>
> > ---
> 
> I've tested it twice already in my P4 desktop (where the problem was
> very frequent after "echo standby > /sys/power/state") and the
> patch really fixed it!!

Great, thanks a lot for sharing the problem and reporting back, Carlos.

Hugh
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