2.6.31-rc4: Reported regressions from 2.6.30

Rafael J. Wysocki
2009-07-26T20:23:24Z

This message contains a list of some regressions from 2.6.30, for which there
are no fixes in the mainline I know of. If any of them have been fixed already,
please let me know.

If you know of any other unresolved regressions from 2.6.30, please let me know
either and I'll add them to the list. Also, please let me know if any of the
entries below are invalid.

Each entry from the list will be sent additionally in an automatic reply to
this message with CCs to the people involved in reporting and handling the
issue.

Listed regressions statistics:

Date Total Pending Unresolved
----------------------------------------
2009-07-27 70 51 43
2009-07-07 35 25 21
2009-06-29 22 22 15

Unresolved regressions
----------------------

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13848
Subject : iwlwifi (4965) regression since 2.6.30
Submitter : Lukas Hejtmanek <xhejtman@ics.muni.cz>
Date : 2009-07-26 7:57 (1 days old)
References : http://marc.info/?l=linux-kernel&m=124859658502866&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13847
Subject : X stopped accepting keystrokes
Submitter : Pavel Machek <pavel@ucw.cz>
Date : 2009-07-14 9:24 (13 days old)
References : http://marc.info/?l=linux-kernel&m=124756352426737&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13846
Subject : Possible regression in rt61pci driver
Submitter : Chris Clayton <chris2553@googlemail.com>
Date : 2009-07-13 8:27 (14 days old)
References : http://marc.info/?l=linux-kernel&m=124747418828398&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13845
Subject : inotify regression, missing events
Submitter : Scott James Remnant <scott@ubuntu.com>
Date : 2009-07-11 16:02 (16 days old)
References : http://marc.info/?l=linux-kernel&m=124732816314881&w=4
Handled-By : Eric Paris <eparis@redhat.com>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13844
Subject : i915 errors
Submitter : Fabio Comolli <fabio.comolli@gmail.com>
Date : 2009-07-25 9:30 (2 days old)
References : http://marc.info/?l=linux-kernel&m=124851427612720&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13843
Subject : Linux-2.6.31-rc4 fails to open a USB serial port
Submitter : e9hack <e9hack@googlemail.com>
Date : 2009-07-25 9:16 (2 days old)
References : http://marc.info/?l=linux-kernel&m=124851343512022&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13842
Subject : Oops when writing to /sys/block/ram0/queue/max_sectors_kb
Submitter : Jens Rosenboom <jens@mcbone.net>
Date : 2009-07-23 15:30 (4 days old)
References : http://marc.info/?l=linux-kernel&m=124836574403032&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13841
Subject : 2.6.31-rc4 boot failure
Submitter : Gene Heskett <gene.heskett@verizon.net>
Date : 2009-07-23 14:12 (4 days old)
References : http://marc.info/?l=linux-kernel&m=124835839019906&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13839
Subject : xc5000 no longer works with Myth-0.21-fixes branch
Submitter : Mark Lord <lkml@rtr.ca>
Date : 2009-07-19 15:15 (8 days old)
References : http://marc.info/?l=linux-kernel&m=124814394016848&w=4
Handled-By : Devin Heitmueller <dheitmueller@kernellabs.com>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13838
Subject : kernel BUG at include/net/netns/generic.h:41!
Submitter : Luca Tettamanti <kronos.it@gmail.com>
Date : 2009-07-20 15:27 (7 days old)
References : http://lkml.org/lkml/2009/7/20/105

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13837
Subject : Input : regression - touchpad not detected
Submitter : Dave Young <hidave.darkstar@gmail.com>
Date : 2009-07-17 07:13 (10 days old)
References : http://marc.info/?l=linux-kernel&m=124780763701571&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13836
Subject : suspend script fails, related to stdout?
Submitter : Tomas M. <tmezzadra@gmail.com>
Date : 2009-07-17 21:24 (10 days old)
References : http://marc.info/?l=linux-kernel&m=124785853811667&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13835
Subject : e1000e massive packet loss
Submitter : Caleb Cushing <xenoterracide@gmail.com>
Date : 2009-07-16 09:49 (11 days old)
References : http://marc.info/?l=linux-kernel&m=124773057917887&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13833
Subject : Kernel Oops when trying to suspend with ubifs mounted on block2mtd mtd device
Submitter : Tobias Diedrich <ranma@tdiedrich.de>
Date : 2009-07-15 14:20 (12 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=15bce40cb3133bcc07d548013df97e4653d363c1
References : http://marc.info/?l=linux-kernel&m=124766049207807&w=4
http://marc.info/?l=linux-kernel&m=124704927819769&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13826
Subject : thinkpad boots with backlight low
Submitter : Pavel Machek <pavel@ucw.cz>
Date : 2009-07-15 15:13 (12 days old)
References : http://marc.info/?l=linux-kernel&m=124756359126830&w=4
Handled-By : Henrique de Moraes Holschuh <hmh@hmh.eng.br>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13821
Subject : Replugging USB serial converter uses new device node
Submitter : Ferenc Wagner <wferi@niif.hu>
Date : 2009-07-18 20:04 (9 days old)
References : http://marc.info/?l=linux-kernel&m=124794754015776&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13819
Subject : system freeze when switching to console
Submitter : Reinette Chatre <reinette.chatre@intel.com>
Date : 2009-07-23 17:57 (4 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13815
Subject : emacs -nw compilation doesn't show the error message
Submitter : Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Date : 2009-07-23 06:22 (4 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d945cb9cce20ac7143c2de8d88b187f62db99bdc

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13813
Subject : Hangups in n_tty_read()
Submitter : Johannes Weiner <hannes@cmpxchg.org>
Date : 2009-07-16 18:48 (11 days old)
References : http://marc.info/?l=linux-kernel&m=124777019920579&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13812
Subject : Ooops on uplug
Submitter : Daniel Mack <daniel@caiaq.de>
Date : 2009-07-20 17:51 (7 days old)
References : http://marc.info/?l=linux-kernel&m=124811234302786&w=4
Handled-By : Alan Stern <stern@rowland.harvard.edu>
Alan Cox <alan@linux.intel.com>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13809
Subject : oprofile: possible circular locking dependency detected
Submitter : Jerome Marchand <jmarchan@redhat.com>
Date : 2009-07-22 13:35 (5 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13806
Subject : system does not boot due to device-mapper error
Submitter : Roman Shtylman <shtylman@gmail.com>
Date : 2009-07-21 00:03 (6 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13781
Subject : System freeze at resume after suspend to RAM
Submitter : Christian Casteyde <casteyde.christian@free.fr>
Date : 2009-07-15 18:42 (12 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13770
Subject : System freeze on XFS filesystem recovery on an external disk
Submitter : Jean-Luc Coulon <jean.luc.coulon@gmail.com>
Date : 2009-07-14 10:31 (13 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13762
Subject : AHCI on HP Compaq 6715s broken, did not detect slots/ports -> unable to boot
Submitter : Matthias Tingelhoff <mindo83@t-online.de>
Date : 2009-07-11 20:48 (16 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13750
Subject : Load average flatlines after returning from hibernate
Submitter : Duncan <1i5t5.duncan@cox.net>
Date : 2009-07-09 15:14 (18 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13740
Subject : X server crashes with 2.6.31-rc2 when options are changed
Submitter : Michael S. Tsirkin <m.s.tsirkin@gmail.com>
Date : 2009-07-07 15:19 (20 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13733
Subject : 2.6.31-rc2: irq 16: nobody cared
Submitter : Niel Lambrechts <niel.lambrechts@gmail.com>
Date : 2009-07-06 18:32 (21 days old)
References : http://marc.info/?l=linux-kernel&m=124690524027166&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13732
Subject : tty layer instabilities
Submitter : Mikael Pettersson <mikpe@it.uu.se>
Date : 2009-07-06 13:43 (21 days old)
References : http://marc.info/?l=linux-kernel&m=124688781732419&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13731
Subject : Inconsistent {IN-RECLAIM_FS-W} -> {RECLAIM_FS-ON-W} usage.
Submitter : Miles Lane <miles.lane@gmail.com>
Date : 2009-07-06 4:22 (21 days old)
References : http://marc.info/?l=linux-kernel&m=124685417325348&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13730
Subject : hitting lockdep limits...
Submitter : Daniel J Blueman <daniel.blueman@gmail.com>
Date : 2009-07-05 18:19 (22 days old)
References : http://marc.info/?l=linux-kernel&m=124681799023782&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13729
Subject : kernel BUG at fs/notify/notification.c:93!
Submitter : Mikko C. <mikko.cal@gmail.com>
Date : 2009-06-04 10:16 (53 days old)
References : http://lkml.org/lkml/2009/7/4/12
Handled-By : Eric Paris <eparis@redhat.com>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13728
Subject : 2.6.31-rc2 soft lockups, RPC-related
Submitter : Paul Collins <paul@burly.ondioline.org>
Date : 2009-07-05 7:17 (22 days old)
References : http://marc.info/?l=linux-kernel&m=124677884816794&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13726
Subject : fio sync read 4k block size 35% regression
Submitter : Zhang, Yanmin <yanmin_zhang@linux.intel.com>
Date : 2009-07-01 11:25 (26 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=51daa88ebd8e0d437289f589af29d4b39379ea76
References : http://lkml.org/lkml/2009/6/30/679
Handled-By : Wu Fengguang <fengguang.wu@intel.com>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13716
Subject : The AIC-7892P controller does not work any more
Submitter : Andrej Podzimek <andrej@podzimek.org>
Date : 2009-07-05 19:23 (22 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13713
Subject : [drm/i915] Possible regression due to commit "Change GEM throttling to be 20ms (...)"
Submitter : <kazikcz@gmail.com>
Date : 2009-07-05 10:49 (22 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b962442e46a9340bdbc6711982c59ff0cc2b5afb

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13709
Subject : b2c2-flexcop: no frontend driver found for this B2C2/FlexCop adapter w/ kernel-2.6.31-rc2
Submitter : boris64 <bugzilla.kernel.org@boris64.net>
Date : 2009-07-05 01:36 (22 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13700
Subject : usb error flood in dmesg, makes kde use plenty of cpu - bisected
Submitter : jouni susiluoto <jouni.susiluoto@helsinki.fi>
Date : 2009-07-03 21:13 (24 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13667
Subject : drm: display arifacts when X.Org is stopped
Submitter : Frans Pop <elendil@planet.nl>
Date : 2009-06-27 18:52 (30 days old)
References : http://lkml.org/lkml/2009/6/27/105
http://lkml.org/lkml/2009/7/8/30

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13666
Subject : WARNING: at mm/page_alloc.c:1743 __alloc_pages_nodemask
Submitter : Thomas Meyer <thomas@m3y3r.de>
Date : 2009-06-27 16:15 (30 days old)
References : http://lkml.org/lkml/2009/6/27/75
http://lkml.org/lkml/2009/7/7/6

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13657
Subject : Linux-2.6.31-rc1 Fails To Recognize Some USB Disks
Submitter : Tarkan Erimer <tarkan.erimer@turknet.net.tr>
Date : 2009-06-26 10:03 (31 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3821d768912a47ddbd6cab52943a8284df88003c
References : http://lkml.org/lkml/2009/6/26/34
Handled-By : Martin K. Petersen <martin.petersen@oracle.com>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13656
Subject : 2.6.31-rc1 crashes randomly on my Machine.
Submitter : Zeno Davatz <zdavatz@gmail.com>
Date : 2009-06-26 08:56 (31 days old)
References : http://lkml.org/lkml/2009/6/26/27

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13645
Subject : NULL pointer dereference at (null) (level2_spare_pgt)
Submitter : poornima nayak <mpnayak@linux.vnet.ibm.com>
Date : 2009-06-17 17:56 (40 days old)
References : http://lkml.org/lkml/2009/6/17/194

Regressions with patches
------------------------

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13840
Subject : KMS oops on 945G system
Submitter : Diego Calleja <diegocg@gmail.com>
Date : 2009-07-21 20:50 (6 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7662c8bd6545c12ac7b2b39e4554c3ba34789c50
References : http://marc.info/?l=linux-kernel&m=124820945815030&w=4
Handled-By : Jesse Barnes <jbarnes@virtuousgeek.org>
Patch : http://git.kernel.org/?p=linux/kernel/git/anholt/drm-intel.git;a=commit;h=dff33cfcefa31c30b72c57f44586754ea9e8f3e2

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13834
Subject : device mapper fails on some logical volumes
Submitter : Christian Borntr√§ger <borntraeger@de.ibm.com>
Date : 2009-07-15 18:52 (12 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=754c5fc7ebb417b23601a6222a6005cc2e7f2913
References : http://marc.info/?l=linux-kernel&m=124767677206470&w=4
Handled-By : Mike Snitzer <snitzer@redhat.com>
Patch : http://patchwork.kernel.org/patch/33534/

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13827
Subject : PM/hibernate swapfile regression
Submitter : Heiko Carstens <heiko.carstens@de.ibm.com>
Date : 2009-07-14 15:54 (13 days old)
References : http://marc.info/?l=linux-kernel&m=124757972118196&w=4
Handled-By : Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Patch : http://patchwork.kernel.org/patch/36510/

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13825
Subject : eeepc-laptop: fix hot-unplug on resume
Submitter : Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Date : 2009-06-29 13:12 (28 days old)
References : http://lkml.org/lkml/2009/6/29/150
Handled-By : Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Patch : http://patchwork.kernel.org/patch/32926/

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13742
Subject : iwlagn (4965): regression when hardware rf switch is used
Submitter : Frans Pop <elendil@planet.nl>
Date : 2009-06-29 11:28 (28 days old)
References : http://lkml.org/lkml/2009/6/29/88
Handled-By : Reinette Chatre <reinette.chatre@intel.com>
Patch : http://lkml.org/lkml/2009/6/30/224

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13665
Subject : commit 69c854817566 causes OOMs
Submitter : David Howells <dhowells@redhat.com>
Date : 2009-06-27 08:12 (30 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=69c854817566db82c362797b4a6521d0b00fe1d8
References : http://lkml.org/lkml/2009/6/27/28
Handled-By : Wu Fengguang <fengguang.wu@intel.com>
Patch : http://patchwork.kernel.org/patch/32740/

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13659
Subject : iwlagn (4965): no wireless due to RFKILL problem
Submitter : Frans Pop <elendil@planet.nl>
Date : 2009-06-26 13:36 (31 days old)
References : http://lkml.org/lkml/2009/6/26/127
Handled-By : Johannes Berg <johannes@sipsolutions.net>
Patch : http://lkml.org/lkml/2009/6/27/35

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13643
Subject : Touchpad lost synchronization after resume from suspend to RAM
Submitter : Cijoml Cijomlovic Cijomlov <cijoml@volny.cz>
Date : 2009-06-28 10:42 (29 days old)
References : http://lkml.org/lkml/2009/6/23/365
2.6.30-rc1: touchpad disabled
http://lkml.org/lkml/2009/6/25/256
Handled-By : Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Patch : http://patchwork.kernel.org/patch/34075/

For details, please visit the bug entries and follow the links given in
references.

As you can see, there is a Bugzilla entry for each of the listed regressions.
There also is a Bugzilla entry used for tracking the regressions from 2.6.30,
unresolved as well as resolved, at:

http://bugzilla.kernel.org/show_bug.cgi?id=13615

Please let me know if there are any Bugzilla entries that should be added to
the list in there.

Thanks,
Rafael

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