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From: Patrick McHardy <kaber@trash•net>
To: Jarek Poplawski <jarkao2@gmail•com>
Cc: Badalian Vyacheslav <slavon@bigtelecom•ru>,
	netdev@vger•kernel.org, Denys <denys@visp•net.lb>
Subject: Re: deadlocks if use htb
Date: Fri, 10 Oct 2008 14:32:50 +0200	[thread overview]
Message-ID: <48EF4B72.8080305@trash.net> (raw)
In-Reply-To: <20081010075640.GA5204@ff.dom.local>

Jarek Poplawski wrote:
> On 10-10-2008 07:44, Badalian Vyacheslav wrote:
>> Hello all!
> 
> Hello Slavon,
> 
>> Please look to if you have time:
>> http://bugzilla.kernel.org/show_bug.cgi?id=11718
>>
>> We have deadlocks at few PC one times in week.
>> I can test any patches to detect and fix problem.
>> Now i test 2.6.27-rc kernel at one PC.
> 
> A similar bug was reported by Denys Fedoryshchenko but it wasn't fully
> diagnosed. Anyway it looks like hardware dependent. The patch below
> can sometimes help. 2.6.27 may have this fixed too (some other way).

I doubt its hardware related, whats happening is that the hrtimer
insertion gets into an endless loop because the rb tree (or node)
apparently has a loop. I went through the qdiscs' use of hrtimers
again, but can't spot any error there.

Denys, did your systems also have CONFIG_HIGH_RES_TIMERS=n?

  parent reply	other threads:[~2008-10-10 12:32 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-10  5:44 deadlocks if use htb Badalian Vyacheslav
2008-10-10  7:56 ` Jarek Poplawski
2008-10-10  8:46   ` Badalian Vyacheslav
2008-10-10  8:52   ` Badalian Vyacheslav
2008-10-10  9:04     ` Jarek Poplawski
2008-10-10  9:51       ` Jarek Poplawski
2008-10-16  8:28         ` Badalian Vyacheslav
2008-10-16  8:40           ` Jarek Poplawski
2008-10-22  6:06             ` Badalian Vyacheslav
2008-10-22  7:02               ` Jarek Poplawski
2008-12-10 15:14                 ` Badalian Vyacheslav
2008-12-11  8:46                   ` Jarek Poplawski
2008-12-15 11:13                     ` Jarek Poplawski
2008-12-16  7:37                       ` Badalian Vyacheslav
2008-12-18  6:43                       ` Badalian Vyacheslav
2008-12-18  8:17                         ` Jarek Poplawski
2008-12-18 11:23                           ` Badalian Vyacheslav
2008-12-18 11:37                             ` Jarek Poplawski
2009-01-14  2:43                           ` Chris Caputo
2009-01-14  6:39                             ` Jarek Poplawski
2009-01-14 12:17                               ` Denys Fedoryschenko
2009-01-14 12:36                                 ` Jarek Poplawski
2009-01-14 12:41                                   ` Denys Fedoryschenko
2009-01-14 12:50                                 ` Peter Zijlstra
2009-01-14 13:04                                   ` Jarek Poplawski
2009-01-14 13:05                                   ` Denys Fedoryschenko
2009-01-14 13:12                                     ` Jarek Poplawski
2009-01-14 13:15                                       ` Peter Zijlstra
2009-01-14 13:19                                         ` Denys Fedoryschenko
2009-01-14 13:26                                         ` Jarek Poplawski
2009-01-14 13:32                                           ` Peter Zijlstra
2009-01-14 13:57                                             ` Jarek Poplawski
2009-01-14 14:13                                             ` Jarek Poplawski
2009-01-14 14:28                                               ` Peter Zijlstra
2009-01-14 14:39                                                 ` Jarek Poplawski
2009-01-15  9:01                                                 ` Jarek Poplawski
2009-01-15 10:46                                                   ` Peter Zijlstra
2009-01-15 10:54                                                     ` Jarek Poplawski
2009-01-14 18:02                                   ` Chris Caputo
2009-01-15  6:53                                     ` Jarek Poplawski
2009-01-15  7:12                                       ` Badalian Vyacheslav
2009-01-15  8:09                                         ` Jarek Poplawski
2009-01-15  9:01                                           ` Denys Fedoryschenko
2009-01-15  9:06                                             ` Jarek Poplawski
2009-01-15  9:40                                               ` Badalian Vyacheslav
2009-01-15  9:54                                                 ` Jarek Poplawski
2009-01-15  9:57                                                   ` Denys Fedoryschenko
2009-01-15 10:06                                                     ` Jarek Poplawski
2009-01-15 10:10                                                     ` Jarek Poplawski
2009-01-15 10:40                                                       ` Denys Fedoryschenko
2009-01-15  7:26                                       ` Chris Caputo
2009-01-15  7:54                                         ` Jarek Poplawski
2009-01-15  9:45                                           ` Jarek Poplawski
2009-01-15 12:00                                             ` Chris Caputo
2009-01-15 12:18                                               ` Jarek Poplawski
2009-01-15 13:53                                                 ` Chris Caputo
2009-01-16  6:51                                                   ` Badalian Vyacheslav
2009-01-19  5:46                                       ` David Miller
2009-01-19  6:57                                         ` [PATCH] " Jarek Poplawski
2009-01-19  7:42                                           ` Badalian Vyacheslav
2009-01-19  7:57                                             ` Jarek Poplawski
2009-01-20  1:29                                               ` David Miller
2008-10-10 12:32   ` Patrick McHardy [this message]
2008-10-10 12:34     ` Patrick McHardy
2008-10-10 12:54       ` Badalian Vyacheslav

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