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From: Keith Owens <kaos@sgi.com>
To: Andi Kleen <ak@suse.de>
Cc: Andrew Morton <akpm@osdl.org>,
	paulmck@us.ibm.com, greg@kroah.com, sekharan@us.ibm.com,
	linux-kernel@vger.kernel.org, lse-tech@lists.sourceforge.net,
	Douglas_Warzecha@dell.com, Abhay_Salunke@dell.com,
	achim_leubner@adaptec.com, dmp@davidmpye.dyndns.org
Subject: Re: [Lse-tech] Re: [PATCH 0/7]: Fix for unsafe notifier chain
Date: Mon, 28 Nov 2005 19:31:36 +1100	[thread overview]
Message-ID: <4544.1133166696@ocs3.ocs.com.au> (raw)
In-Reply-To: Your message of "Mon, 28 Nov 2005 05:59:22 BST." <20051128045922.GK20775@brahms.suse.de>

On Mon, 28 Nov 2005 05:59:22 +0100, 
Andi Kleen <ak@suse.de> wrote:
>On Sun, Nov 27, 2005 at 08:57:45PM -0800, Andrew Morton wrote:
>> "Paul E. McKenney" <paulmck@us.ibm.com> wrote:
>> >
>> > Any options I missed?
>> 
>> Stop using the notifier chains from NMI context - it's too hard.  Use a
>> fixed-size array in the NMI code instead.
>
>Or just don't unregister. That is what I did for the debug notifiers.

Unregister is not the only problem.  Chain traversal races with
register as well.


  parent reply	other threads:[~2005-11-28  8:32 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-11-23 23:37 Chandra Seetharaman
2005-11-27  4:07 ` Andrew Morton
2005-11-27 13:47   ` [Lse-tech] " Andi Kleen
2005-11-27 15:59     ` Keith Owens
2005-11-27 17:27       ` Andi Kleen
2005-11-27 17:39         ` Keith Owens
2005-11-27 19:56           ` Andrew Morton
2005-11-27 22:03             ` Greg KH
2005-11-28  2:43               ` Paul E. McKenney
2005-11-28  4:57                 ` Andrew Morton
2005-11-28  4:59                   ` Andi Kleen
2005-11-28  5:05                     ` Paul E. McKenney
2005-11-28  5:15                       ` Andi Kleen
2005-11-28  8:31                     ` Keith Owens [this message]
2005-11-28 12:07                       ` Andi Kleen
2005-11-28 19:55                         ` Paul E. McKenney
2005-12-04 16:19                       ` Alan Cox
2005-12-06 23:38                         ` Keith Owens
2005-12-07  2:43                           ` Keith Owens
2005-11-28  1:19             ` Keith Owens
2005-11-28 18:58   ` Chandra Seetharaman

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