linux-kernel - Re: [BUG] "sched: Remove rq->lock from the first half of ttwu()" locks up on ARM

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Message-ID: <1306427537.2497.86.camel@laptop>
Date:	Thu, 26 May 2011 18:32:17 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Marc Zyngier <Marc.Zyngier@....com>
Cc:	Oleg Nesterov <oleg@...hat.com>,
	Yong Zhang <yong.zhang0@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Frank Rowand <frank.rowand@...sony.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [BUG] "sched: Remove rq->lock from the first half of ttwu()"
 locks up on ARM

On Thu, 2011-05-26 at 17:20 +0100, Marc Zyngier wrote:
> 
> Doesn't look very good here. The serial console basically locks up as
> soon as the system gets busy, even if the kernel compilation seem to
> progress at a decent pace. 


OK, I'll leave the one that worked queued up for this release. If we can
come up with a better alternative we can try for the next release, that
should give us ample time to test things and get us a working kernel
now ;-)

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