From: William Lee Irwin III <wli@holomorphy.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Linus Torvalds <torvalds@transmeta.com>,
Zwane Mwaikambo <zwane@holomorphy.com>,
Chris Wedgwood <cw@f00f.org>,
Kernel Mailing List <linux-kernel@vger.kernel.org>,
"Martin J. Bligh" <mbligh@aracnet.com>
Subject: Re: doublefault debugging (was Re: Linux v2.5.62 --- spontaneous reboots)
Date: Thu, 20 Feb 2003 04:12:16 -0800 [thread overview]
Message-ID: <20030220121216.GK22687@holomorphy.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0302201245100.10184-100000@localhost.localdomain>
On Thu, Feb 20, 2003 at 12:46:51PM +0100, Ingo Molnar wrote:
> i think i managed to trigger a potentially useful oops, with BK-curr:
> Stack: c02dd6ac 0000002b 6b6b6b6b 6b6b6b6b 6b6b6b6b 6b6b6b8b 6b6b6b6b 6b6b6b6b
> 6b6b6b6b 00030001 6b6b6b6b 6b6b6b6b 6b6b6b6b 6b6b6b6b 6b6b6b6b 6b6b6b6b
> 6b6b6b6b 6b6b6b6b 6b6b6b6b 6b6b6b6b 6b6b6b6b 6b6b6b6b 6b6b6b6b 6b6b6b6b
Looks like some kind of serious use-after-free slab issue. IF is clear,
so we aren't under spin_lock_irq(&rq->lock) on the initial fault. It
might be interesting to find a way to trap it earlier. Reproducible?
If so, how?
-- wli
next prev parent reply other threads:[~2003-02-20 12:06 UTC|newest]
Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-17 23:18 Linux v2.5.62 Linus Torvalds
2003-02-18 0:03 ` Linux v2.5.62 --- spontaneous reboots Chris Wedgwood
2003-02-18 0:44 ` Jeff Garzik
2003-02-18 0:46 ` Chris Wedgwood
2003-02-18 1:42 ` Linus Torvalds
2003-02-18 1:53 ` Chris Wedgwood
2003-02-18 2:02 ` Linus Torvalds
2003-02-18 2:16 ` Chris Wedgwood
2003-02-18 2:33 ` Linus Torvalds
2003-02-18 3:21 ` Martin J. Bligh
2003-02-19 11:02 ` David Ford
2003-02-18 21:44 ` Chris Wedgwood
2003-02-18 21:59 ` Chris Wedgwood
2003-02-18 22:13 ` Linus Torvalds
2003-02-18 22:34 ` Linus Torvalds
2003-02-18 23:01 ` Chris Wedgwood
2003-02-19 23:35 ` doublefault debugging (was Re: Linux v2.5.62 --- spontaneous reboots) Linus Torvalds
2003-02-20 2:22 ` Zwane Mwaikambo
2003-02-20 2:26 ` William Lee Irwin III
2003-02-20 2:55 ` Zwane Mwaikambo
2003-02-20 3:15 ` William Lee Irwin III
2003-02-20 4:52 ` Linus Torvalds
2003-02-20 5:07 ` William Lee Irwin III
2003-02-20 6:05 ` Zwane Mwaikambo
2003-02-20 11:46 ` Ingo Molnar
2003-02-20 12:12 ` William Lee Irwin III [this message]
2003-02-20 12:33 ` Ingo Molnar
2003-02-20 14:03 ` Zwane Mwaikambo
2003-02-20 14:00 ` Zwane Mwaikambo
2003-02-20 15:43 ` Linus Torvalds
2003-02-20 15:52 ` Ingo Molnar
2003-02-20 16:11 ` Martin J. Bligh
2003-02-20 16:54 ` Linus Torvalds
2003-02-20 17:24 ` Jeff Garzik
2003-02-20 21:21 ` Alan Cox
2003-02-20 20:20 ` Linus Torvalds
2003-02-20 20:23 ` Martin J. Bligh
2003-02-20 20:42 ` William Lee Irwin III
2003-02-20 20:51 ` Linus Torvalds
2003-02-21 7:39 ` [PATCH] snd_pcm_oss_change_params is a stack offender Muli Ben-Yehuda
2003-02-21 7:58 ` Andreas Dilger
2003-02-21 8:20 ` Muli Ben-Yehuda
2003-02-27 18:50 ` doublefault debugging (was Re: Linux v2.5.62 --- spontaneous reboots) Randy.Dunlap
2003-02-27 19:39 ` Muli Ben-Yehuda
2003-02-27 19:47 ` Randy.Dunlap
2003-03-02 6:12 ` Keith Owens
2003-02-27 23:32 ` Randy.Dunlap
2003-02-20 23:09 ` Chris Wedgwood
2003-02-20 16:44 ` Ingo Molnar
2003-02-20 20:13 ` Chris Wedgwood
2003-02-18 12:13 ` Linux v2.5.62 --- spontaneous reboots Pavel Machek
2003-02-19 10:53 ` Linux v2.5.62 David Ford
2003-02-19 6:49 ` Thomas Molina
2003-02-19 11:04 ` Duncan Sands
2003-02-19 11:07 ` William Lee Irwin III
2003-02-19 11:58 ` Duncan Sands
2003-02-19 12:04 ` William Lee Irwin III
2003-02-19 11:17 ` Hirling Endre
2003-02-19 11:24 ` Duncan Sands
2003-02-19 11:52 ` Hirling Endre
2003-02-19 18:50 ` Zilvinas Valinskas
2003-02-19 21:46 ` Remco Post
2003-02-19 22:23 ` Remco Post
2003-02-20 1:13 ` Tom Rini
2003-02-20 19:42 ` Remco Post
2003-02-20 19:46 ` Tom Rini
2003-02-20 20:05 ` Remco Post
2003-02-20 13:31 ` Dave Jones
2003-02-20 13:57 ` Zilvinas Valinskas
2003-02-20 14:31 ` Dave Jones
2003-02-21 3:58 ` Alexander Hoogerhuis
2003-02-22 5:34 ` Alexander Hoogerhuis
[not found] <Pine.LNX.4.44.0302201830580.474-100000@localhost.localdomain>
2003-02-20 18:01 ` doublefault debugging (was Re: Linux v2.5.62 --- spontaneous reboots) Linus Torvalds
2003-02-20 18:23 ` Linus Torvalds
2003-02-20 19:36 ` Ingo Molnar
2003-02-20 19:53 ` Ingo Molnar
2003-02-20 19:57 ` Ingo Molnar
2003-02-20 20:14 ` Ingo Molnar
2003-02-20 20:17 ` Linus Torvalds
2003-02-20 20:50 ` Andrew Morton
2003-02-20 22:04 ` Ingo Molnar
2003-02-20 22:42 ` William Lee Irwin III
2003-02-21 7:05 ` Ingo Molnar
2003-02-20 22:00 ` Ingo Molnar
2003-02-20 22:32 ` Linus Torvalds
2003-02-20 22:40 ` Linus Torvalds
2003-02-20 22:45 ` Linus Torvalds
2003-02-20 22:57 ` John Levon
2003-02-20 23:21 ` Ingo Molnar
2003-02-20 23:36 ` Linus Torvalds
2003-02-21 7:00 ` Ingo Molnar
2003-02-21 15:05 ` Linus Torvalds
2003-02-20 19:00 ` Ingo Molnar
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