linux-kernel - Re: [rfc][patch] store-free path walking

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Message-Id: <1255024846.26976.329.camel@twins>
Date:	Thu, 08 Oct 2009 20:00:45 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	Nick Piggin <npiggin@...e.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-fsdevel@...r.kernel.org,
	Ravikiran G Thirumalai <kiran@...lex86.org>
Subject: Re: [rfc][patch] store-free path walking

On Thu, 2009-10-08 at 15:30 +0200, Jens Axboe wrote:
> 
> IIRC, there was a bug with thread accounting very recently. Why would it
> not hit -rc3 alone, though? Does look fishy, though.

That was caused by: 
  def0a9b2573e00ab0b486cb5382625203ab4c4a6 sched_clock: Make it NMI safe

And was fixed by:  
  152f9d0710a62708710161bce1b29fa8292c8c11 sched_clock: Fix
atomicity/continuity bug by using cmpxchg64()

Which is in -rc3
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