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From: Theodore Tso <tytso@mit.edu>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Kernel Testers List <kernel-testers@vger.kernel.org>,
	Federico Cuello <fedux@lugmen.org.ar>,
	Ralf Hildebrandt <Ralf.Hildebrandt@charite.de>,
	bugme-daemon@bugzilla.kernel.org
Subject: Re: [Bug #12610] sync-Regression in 2.6.28.2?
Date: Sat, 21 Feb 2009 12:56:46 -0500	[thread overview]
Message-ID: <20090221175646.GB3750@mit.edu> (raw)
In-Reply-To: <rjPbZ5GRJPO.A.xTF.As0lJB@chimera>

On Sat, Feb 14, 2009 at 09:38:18PM +0100, Rafael J. Wysocki wrote:
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12610
> Subject		: sync-Regression in 2.6.28.2?
> Submitter	: Ralf Hildebrandt <Ralf.Hildebrandt@charite.de>
> Date		: 2009-01-27 9:35 (19 days old)
> References	: http://marc.info/?l=linux-kernel&m=123304977706620&w=4

This fix for this has landed in mainline post 2.6.29-rc5, as commit
2acf2c.  The deadlock is technically not a regression but it was made
*much* more likely to show up because of commit 31a1266: ("mm:
write_cache_pages cyclic fix, which show up in 2.6.28.1").  

Commit 3a4c68 in mainline backs up the change made in 31a1266, so you
probably won't see this much after 2.6.28.6 (when 3a4c68 was
backported to 2.6.28.y), but we should get commit 2acf2c pushed to
2.6.28.x and 2.6.27.y to completely solve the deadlock problem.

						- Ted

  reply	other threads:[~2009-02-21 23:25 UTC|newest]

Thread overview: 132+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-14 20:35 2.6.29-rc5: Reported regressions from 2.6.28 Rafael J. Wysocki
2009-02-14 20:35 ` [Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29? Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12444] X hangs following switch from radeonfb console - Bisected Rafael J. Wysocki
2009-02-16 17:52   ` Graham Murray
2009-02-16 21:52     ` Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12418] Repeated ioctl(4, 0x40046445, ..) loop in glxgears Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12490] ath5k related kernel panic in 2.6.29-rc1 Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12419] possible circular locking dependency on i915 dma Rafael J. Wysocki
2009-02-16  3:50   ` Wang Chen
2009-02-14 20:38 ` [Bug #12497] new barrier warnings in 2.6.29-rc1 Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12496] swsusp cannot find resume device (sometimes) Rafael J. Wysocki
2009-02-15  0:05   ` Arjan van de Ven
2009-02-15 14:23     ` Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12491] i915 lockdep warning Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12494] Sony backlight regression from 2.6.28 to 29-rc Rafael J. Wysocki
2009-02-17 10:51   ` Norbert Preining
2009-02-14 20:38 ` [Bug #12499] Problem with using bluetooth adaper connected to usb port Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12501] build bug in eeepc-laptop.c Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12502] pipe_read oops on sh Rafael J. Wysocki
2009-02-15  0:23   ` Adrian McMenamin
2009-02-15 14:27     ` Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12510] 2.6.29-rc2 dies on startup Rafael J. Wysocki
2009-02-16 21:02   ` Ferenc Wagner
2009-02-16 21:12     ` Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12551] end_request: I/O error, dev cciss/c0d0, sector 87435720 Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12610] sync-Regression in 2.6.28.2? Rafael J. Wysocki
2009-02-21 17:56   ` Theodore Tso [this message]
2009-02-22 10:02     ` Rafael J. Wysocki
2009-02-23  4:35       ` Greg KH
2009-02-23  5:37         ` Theodore Tso
2009-02-23 16:54           ` [stable] " Greg KH
2009-02-14 20:38 ` [Bug #12609] v2.6.29-rc2 libata sff 32bit PIO regression Rafael J. Wysocki
2009-02-15  4:20   ` Larry Finger
2009-02-15  8:10     ` Jeff Garzik
2009-02-15 12:05       ` Sergei Shtylyov
2009-02-15 16:48       ` Hugh Dickins
2009-02-14 20:38 ` [Bug #12574] possible circular locking dependency detected Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12571] Suspend-resume on Dell Latitude D410 newly broken in 2.6.29-rc* Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12615] boot hangs while bringing up gianfar ethernet Rafael J. Wysocki
2009-02-15 14:42   ` Peter Korsgaard
2009-02-15 21:08     ` Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12613] [Suspend regression][DRM, RADEON] Rafael J. Wysocki
     [not found]   ` <4997E7D7.60205@numericable.fr>
2009-02-15 10:20     ` etienne
2009-02-14 20:38 ` [Bug #12659] Failure to resume two Sandisk USB flash drives attached to a Belkin USB Busport Mobile (F5U022) Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12617] unable to compile e100 firmware into kernel Rafael J. Wysocki
2009-02-15 17:38   ` David Woodhouse
2009-02-15 19:58     ` Andrey Borzenkov
2009-02-15 21:09       ` Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12618] hackbench [pthread mode] regression with 2.6.29-rc3 Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12650] Strange load average and ksoftirqd behavior with 2.6.29-rc2-git1 Rafael J. Wysocki
2009-02-15  8:09   ` Damien Wyart
2009-02-15  9:00     ` Ingo Molnar
2009-02-15  9:51       ` Damien Wyart
2009-02-15 10:13         ` Ingo Molnar
2009-02-15 10:34           ` Damien Wyart
2009-02-15 10:41             ` Damien Wyart
2009-02-15 10:42             ` Damien Wyart
2009-02-15 10:43               ` Damien Wyart
2009-02-15 11:01             ` Ingo Molnar
2009-02-15 14:06               ` Frederic Weisbecker
2009-02-15 18:03               ` Damien Wyart
2009-02-15 19:18                 ` Damien Wyart
2009-02-15 19:31                 ` Ingo Molnar
2009-02-16  8:42                   ` Damien Wyart
2009-02-16  9:21                     ` Ingo Molnar
2009-02-16 10:49                       ` Damien Wyart
2009-02-16  9:25                     ` Ingo Molnar
2009-02-16  9:27                     ` Ingo Molnar
2009-02-16  9:32                     ` Ingo Molnar
2009-02-16  9:50                     ` Ingo Molnar
2009-02-16 11:56                       ` Damien Wyart
2009-02-16 12:26                         ` Ingo Molnar
2009-02-16 13:02                           ` Damien Wyart
2009-02-16 13:21                             ` Ingo Molnar
2009-02-16 16:06                               ` Paul E. McKenney
2009-02-16 18:56                                 ` Paul E. McKenney
2009-02-16 19:08                                   ` Frederic Weisbecker
2009-02-16 20:02                                   ` Frederic Weisbecker
2009-02-16 21:31                                     ` Paul E. McKenney
2009-02-16 20:09                                   ` Ingo Molnar
2009-02-16 22:39                                     ` Paul E. McKenney
2009-02-16 22:51                                       ` Paul E. McKenney
2009-02-17  9:46                                         ` Ingo Molnar
2009-02-17 14:01                                           ` Paul E. McKenney
2009-02-17 15:39                                             ` Damien Wyart
2009-02-17 16:05                                               ` Paul E. McKenney
2009-02-17 21:48                                               ` Ingo Molnar
2009-02-17  4:34                                       ` Frederic Weisbecker
2009-02-17 15:10                                         ` Paul E. McKenney
2009-02-17 16:00                                           ` Frederic Weisbecker
2009-02-17 22:37                                           ` Frederic Weisbecker
2009-02-17 22:48                                             ` Paul E. McKenney
2009-02-18  0:38                                               ` Ingo Molnar
2009-02-18  1:02                                                 ` Paul E. McKenney
2009-02-17  6:11                                       ` Damien Wyart
2009-02-17 15:11                                         ` Paul E. McKenney
2009-02-16 20:44                                   ` Damien Wyart
2009-02-15 10:12       ` Christian Kujau
2009-02-15 10:54         ` Ingo Molnar
2009-02-14 20:38 ` [Bug #12668] USB flash disk surprise disconnect Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12663] Commit 8c7e58e690ae60ab4215b025f433ed4af261e103 breaks resume Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12660] Linux 2.6.28.3 freezing on a 32-bits x86 Thinkpad T43p Rafael J. Wysocki
2009-02-14 23:29   ` Mathieu Desnoyers
2009-02-14 20:38 ` [Bug #12680] Not having a VIA PadLock hardware incurs a long delay in probing on modules insertion attempt Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12681] s2ram: fails to wake up on Acer Extensa 4220 (SMP disabled) Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12670] BUG: unable to handle kernel paging request at pin_to_kill+0x21 Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12671] uvc_status_cleanup(): undefined reference to `input_unregister_device' Rafael J. Wysocki
2009-02-14 20:38 ` [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc Rafael J. Wysocki
2009-02-15 13:43   ` Matthew Garrett
2009-02-15 14:37     ` Rafael J. Wysocki
2009-02-17 23:05     ` Eric Anholt
2009-02-17 23:13       ` Matthew Garrett
2009-02-17 23:23         ` Jesse Barnes
2009-02-18  9:36           ` Nico Schottelius
2009-02-13  9:33             ` Nico Schottelius
2009-02-13  9:40               ` Nico Schottelius
2009-02-13 13:43                 ` Matthew Garrett
2009-03-10  2:28                 ` Eric Anholt
2009-03-10  5:38                   ` Nico Schottelius
2009-02-13  9:42               ` Ingo Molnar
2009-02-13 18:05                 ` Len Brown
2009-02-16  9:06                   ` ZhangRui
2009-02-16 10:58                     ` Nico Schottelius
2009-02-16 13:13                       ` Nico Schottelius
2009-02-16 21:40                         ` Norbert Preining
2009-02-16 15:54                   ` Nico Schottelius
2009-02-19  9:01                     ` Nico Schottelius
2009-02-14 20:38 ` [Bug #12706] Oopses and ACPI problems (Linus 2.6.29-rc4) Rafael J. Wysocki
2009-02-16  7:29 ` 2.6.29-rc5: Reported regressions from 2.6.28 Jarek Poplawski
2009-02-16 21:11   ` Rafael J. Wysocki
  -- strict thread matches above, loose matches on Subject: below --
2009-02-08 19:05 2.6.29-rc4: " Rafael J. Wysocki
2009-02-08 19:21 ` [Bug #12610] sync-Regression in 2.6.28.2? Rafael J. Wysocki
2009-02-04 10:21 2.6.29-rc3-git6: Reported regressions from 2.6.28 Rafael J. Wysocki
2009-02-04 10:24 ` [Bug #12610] sync-Regression in 2.6.28.2? Rafael J. Wysocki

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