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From: Andi Kleen <andi@firstfloor.org>
To: Davidlohr Bueso <dave@gnu.org>
Cc: Andi Kleen <andi@firstfloor.org>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] mce: fix RCU lockdep from mce_log()
Date: Sat, 6 Nov 2010 19:53:50 +0100	[thread overview]
Message-ID: <20101106185350.GA23824@basil.fritz.box> (raw)
In-Reply-To: <1288993499.2065.4.camel@cowboy>

On Fri, Nov 05, 2010 at 06:44:59PM -0300, Davidlohr Bueso wrote:
> Hi,
> 
> Please review this patch, I am not very familiar with MCE/RCU so I'm not sure that this is the correct fix (otherwise consider it a bug report :)).
> This does "fix" the message though and I can use MCE normally.

The patch is certainly not correct. The variable needs to be read
independently of the mutex.

-Andi

  parent reply	other threads:[~2010-11-06 18:53 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-05 21:44 [PATCH] mce: fix RCU lockdep from mce_log() Davidlohr Bueso
2010-11-05 21:48 ` Davidlohr Bueso
2010-11-06 18:53 ` Andi Kleen [this message]
2010-11-07 13:39   ` Paul E. McKenney
2010-11-08 11:30     ` Davidlohr Bueso
2010-11-08 13:17       ` Paul E. McKenney
2010-11-10 13:44         ` [PATCH] mce: fix RCU lockdep from mce_poll() Davidlohr Bueso
2011-03-29  9:45         ` [PATCH] mce: fix RCU lockdep from mce_log() Zdenek Kabelac
2011-03-31  1:14           ` Davidlohr Bueso
2011-03-31  1:37             ` Andi Kleen
2011-03-31  2:13               ` [PATCH] mce: fix RCU lockdep from mce_poll() Davidlohr Bueso
2011-03-31  9:30                 ` [tip:x86/urgent] x86, mce: Fix " tip-bot for Davidlohr Bueso
2011-03-31 10:03                   ` Zdenek Kabelac
2011-03-31 16:41                     ` Paul E. McKenney
2011-03-31 21:32                       ` Zdenek Kabelac
2011-03-31 22:50                         ` Paul E. McKenney

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