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From: Ingo Molnar <mingo@elte.hu>
To: Doug Chapman <doug.chapman@hp.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Frank Mayhar <fmayhar@google.com>,
	roland@redhat.com, adobriyan@gmail.com,
	akpm@linux-foundation.org,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Christoph Lameter <cl@linux-foundation.org>
Subject: Re: [PATCH] revert: timers: fix itimer/many thread hang
Date: Thu, 13 Nov 2008 17:08:08 +0100	[thread overview]
Message-ID: <20081113160808.GA13726@elte.hu> (raw)
In-Reply-To: <1226592021.21297.25.camel@oberon>


* Doug Chapman <doug.chapman@hp.com> wrote:

> Peter didn't mention here that the itimer/many thread patches cause 
> a race-condition panic which is easily reproduced (in fact 
> unavoidable with SLUB debugging on) on hyperthreaded ia64 systems 
> (but certainly possible on all systems).  Can we get this revert 
> patch pulled in?  The other attempts to fix this so far have been 
> unsuccessful.  I have tested with this revert patch and it does 
> indeed fix that issue.

Could you please try with the very latest upstream kernel? It should 
be fixed by Oleg's fix patch via:

ad474ca: fix for account_group_exec_runtime(), make sure ->signal can't be fre

which is already upstream.

	Ingo

  reply	other threads:[~2008-11-13 16:08 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1224694989.8431.23.camel@oberon>
     [not found] ` <1225132746.14792.13.camel@bobble.smo.corp.google.com>
     [not found]   ` <1225219114.24204.37.camel@oberon>
2008-11-06  1:58     ` regression introduced by - timers: fix itimer/many thread hang Frank Mayhar
2008-11-06 11:03       ` Peter Zijlstra
2008-11-06 15:03         ` Christoph Lameter
2008-11-06 15:08           ` Peter Zijlstra
2008-11-06 16:08             ` Christoph Lameter
2008-11-06 23:52             ` Frank Mayhar
2008-11-07  8:35               ` Ingo Molnar
2008-11-07 10:29               ` Peter Zijlstra
2008-11-07 18:10                 ` Frank Mayhar
2008-11-07 20:26                   ` Peter Zijlstra
2008-11-10 14:38                     ` Christoph Lameter
2008-11-10 14:42                       ` Peter Zijlstra
2008-11-10 15:41                         ` Christoph Lameter
2008-11-10 18:00                         ` Frank Mayhar
2008-11-14  2:42                           ` Roland McGrath
2008-11-14 16:41                             ` Oleg Nesterov
2008-11-17 14:36                               ` Oleg Nesterov
2008-11-17 18:16                                 ` Roland McGrath
2008-11-17 22:18                                   ` Oleg Nesterov
2008-11-17 21:49                                     ` Roland McGrath
2008-11-11  0:20                         ` Ingo Oeser
2008-11-11 13:58                           ` Christoph Lameter
2008-11-21 18:42                 ` Petr Tesarik
2008-11-21 19:26                   ` Frank Mayhar
2008-11-23 14:24                   ` Peter Zijlstra
2008-11-24  8:46                     ` Petr Tesarik
2008-11-24  9:33                       ` Peter Zijlstra
2008-11-24 12:32                         ` Petr Tesarik
2008-11-24 12:59                           ` Peter Zijlstra
2008-11-24 16:06                             ` Peter Zijlstra
2008-11-06 16:31         ` [PATCH] revert: " Peter Zijlstra
2008-11-06 21:44           ` Ingo Molnar
2008-11-06 21:53             ` Christoph Lameter
2008-11-07 10:19               ` Peter Zijlstra
2008-11-13 16:00           ` Doug Chapman
2008-11-13 16:08             ` Ingo Molnar [this message]
2008-11-14 14:10               ` Doug Chapman

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