2.6.29-rc6-git7: Reported regressions from 2.6.28

Rafael J. Wysocki
2009-03-03T21:56:35Z

This message contains a list of some regressions from 2.6.28, 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 2.6.28, 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
----------------------------------------
2009-03-03 108 33 28
2009-02-24 95 32 24
2009-02-14 85 33 27
2009-02-08 82 45 36
2009-02-04 66 51 39
2009-01-20 38 35 27
2009-01-11 13 13 10

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

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12809
Subject : iozone regression with 2.6.29-rc6
Submitter : Lin Ming <ming.m.lin@intel.com>
Date : 2009-02-27 9:13 (5 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1cf6e7d83bf334cc5916137862c920a97aabc018
References : http://marc.info/?l=linux-kernel&m=123572630504360&w=4
Handled-By : Wu Fengguang <fengguang.wu@intel.com>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12808
Subject : Suspend regression with 2.6.29-rc
Submitter : Tino Keitel <tino.keitel@gmx.de>
Date : 2009-02-24 19:08 (8 days old)
References : http://marc.info/?l=linux-kernel&m=123550257312112&w=4
Handled-By : Rafael J. Wysocki <rjw@sisk.pl>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12806
Subject : i915 broken STR
Submitter : Harvey Harrison <harvey.harrison@gmail.com>
Date : 2009-02-28 4:20 (4 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5669fcacc58bf3a7386057addffd280d75380858
References : http://marc.info/?l=linux-kernel&m=123579487801064&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12805
Subject : QinQ vlan trunking regression
Submitter : Bart Trojanowski <bart@jukie.net>
Date : 2009-02-28 18:05 (4 days old)
References : http://marc.info/?l=linux-kernel&m=123584439115868&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12804
Subject : some tc commands fail
Submitter : Joao Correia <joaomiguelcorreia@gmail.com>
Date : 2009-03-02 0:36 (2 days old)
References : http://marc.info/?l=linux-kernel&m=123595420013357&w=4
Handled-By : Jarek Poplawski <jarkao2@gmail.com>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12800
Subject : x86 PAT invalid vm_insert_pfn assumptions
Submitter : Thomas Hellstrom <thellstrom@vmware.com>
Date : 2009-03-02 01:40 (2 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12792
Subject : 2.6.29-rc6-git4 boot failure
Submitter : Sachin P. Sant <sachinp@in.ibm.com>
Date : 2009-02-27 23:19 (5 days old)
References : http://ozlabs.org/pipermail/linuxppc-dev/2009-February/068771.html

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12778
Subject : regression from 29rc5 to 29rc6
Submitter : yury <urykhy@gmail.com>
Date : 2009-02-25 09:25 (7 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12771
Subject : Oops in i915_gem_flush
Submitter : Kalev Lember <kalev@colleduc.ee>
Date : 2009-02-24 08:35 (8 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12769
Subject : 3D performance gets very choppy after suspend/resume cycle (intel video)
Submitter : Michael <auslands-kv@gmx.de>
Date : 2009-02-23 23:36 (9 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12765
Subject : i915 VT switch with AIGLX causes X lock up
Submitter : Sitsofe Wheeler <sitsofe@yahoo.com>
Date : 2009-02-21 15:38 (11 days old)
References : http://marc.info/?l=linux-kernel&m=123523074304955&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12764
Subject : Can not ioremap virtual address for G33 hw status page
Submitter : Maciej Rutecki <maciej.rutecki@gmail.com>
Date : 2009-02-23 14:46 (9 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6fb88588555a18792a27f483887fe1f2af5f9c9b
References : http://marc.info/?l=linux-kernel&m=123540053219505&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12763
Subject : Different cpu MHz values for processor0 and processor1
Submitter : Matthew A. Bockol <mbockol@carleton.edu>
Date : 2009-02-21 5:42 (11 days old)
References : http://marc.info/?l=linux-kernel&m=123519687807246&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12758
Subject : ACPI exception with 2.6.29-rc6
Submitter : Heinz Diehl <htd@fancy-poultry.org>
Date : 2009-02-23 16:46 (9 days old)
References : http://marc.info/?l=linux-kernel&m=123540758700861&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12705
Subject : X200: Brightness broken since 2.6.29-rc4-58-g4c098bc
Submitter : Nico Schottelius <nico-linux-20090213@schottelius.org>
Date : 2009-02-13 9:33 (19 days old)
References : http://marc.info/?l=linux-kernel&m=123451768406825&w=4
Handled-By : Len Brown <lenb@kernel.org>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12681
Subject : s2ram: fails to wake up on Acer Extensa 4220 (SMP disabled)
Submitter : Orivej Desh <smpuj@bk.ru>
Date : 2009-02-09 13:01 (23 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1cfe62c8010ac56e1bd3827e30386a87cc2f3594

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12680
Subject : Entropy pool problem
Submitter : Valentin QUEQUET <v.quequet-techniques@orange.fr>
Date : 2009-02-09 09:12 (23 days old)

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12670
Subject : BUG: unable to handle kernel paging request at pin_to_kill+0x21
Submitter : Alessandro Bono <alessandro.bono@gmail.com>
Date : 2009-02-08 11:04 (24 days old)
References : http://marc.info/?l=linux-kernel&m=123409113223833&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12668
Subject : USB flash disk surprise disconnect
Submitter : Vegard Nossum <vegard.nossum@gmail.com>
Date : 2009-02-08 10:21 (24 days old)
References : http://marc.info/?l=linux-kernel&m=123408851821292&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12574
Subject : possible circular locking dependency detected
Submitter : Michael S. Tsirkin <m.s.tsirkin@gmail.com>
Date : 2009-01-29 11:35 (34 days old)
References : http://lkml.org/lkml/2009/2/9/205

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12501
Subject : build bug in eeepc-laptop.c
Submitter : Ingo Molnar <mingo@elte.hu>
Date : 2009-01-14 17:25 (49 days old)
References : http://lkml.org/lkml/2009/1/14/315

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12499
Subject : Problem with using bluetooth adaper connected to usb port
Submitter : Maciej Rutecki <maciej.rutecki@gmail.com>
Date : 2009-01-13 18:34 (50 days old)
References : http://marc.info/?l=linux-kernel&m=123187185426236&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12497
Subject : new barrier warnings in 2.6.29-rc1
Submitter : Christoph Hellwig <hch@lst.de>
Date : 2009-01-12 15:46 (51 days old)
References : http://marc.info/?l=linux-kernel&m=123177528217154&w=4
Handled-By : Jens Axboe <jens.axboe@oracle.com>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12490
Subject : ath5k related kernel panic in 2.6.29-rc1
Submitter : Sergey S. Kostyliov <rathamahata@gmail.com>
Date : 2009-01-12 7:38 (51 days old)
References : http://marc.info/?l=linux-kernel&m=123174591509586&w=4
Handled-By : Bob Copeland <me@bobcopeland.com>

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12444
Subject : X hangs following switch from radeonfb console - Bisected
Submitter : Graham Murray <graham@gmurray.org.uk>
Date : 2009-01-13 14:03 (50 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7c1c2871a6a3a114853ec6836e9035ac1c0c7f7a

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12419
Subject : possible circular locking dependency on i915 dma
Submitter : Wang Chen <wangchen@cn.fujitsu.com>
Date : 2009-01-08 14:11 (55 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=546b0974c39657017407c86fe79811100b60700d
References : http://marc.info/?l=linux-kernel&m=123142399720125&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12418
Subject : Repeated ioctl(4, 0x40046445, ..) loop in glxgears
Submitter : Pallipadi, Venkatesh <venkatesh.pallipadi@intel.com>
Date : 2009-01-07 22:43 (56 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7c1c2871a6a3a114853ec6836e9035ac1c0c7f7a
References : http://marc.info/?l=linux-kernel&m=123136836213319&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12414
Subject : iwl4965 cannot use "ap auto" on latest 2.6.28/29?
Submitter : Jeff Chua <jeff.chua.linux@gmail.com>
Date : 2009-01-05 4:13 (58 days old)
References : http://marc.info/?l=linux-kernel&m=123112882127823&w=4

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

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12811
Subject : undefined reference to `physmap_set_partitions' on powerpc
Submitter : Rogério Brito <rbrito@ime.usp.br>
Date : 2009-03-02 9:43 (2 days old)
References : http://marc.info/?l=linux-kernel&m=123598702511826&w=4
Handled-By : Rogério Brito <rbrito@ime.usp.br>
Patch : http://marc.info/?l=linux-kernel&m=123606933628020&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12762
Subject : Disk errors loop forever in 2.6.29
Submitter : Sitsofe Wheeler <sitsofe@yahoo.com>
Date : 2009-02-19 13:53 (13 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b60af5b0adf0da24c673598c8d3fb4d4189a15ce
References : http://marc.info/?l=linux-kernel&m=123505185407604&w=4
Handled-By : James Bottomley <James.Bottomley@hansenpartnership.com>
Patch : http://marc.info/?l=linux-kernel&m=123508030726900&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12761
Subject : Bonding tied to IPV6 in 29-rc5
Submitter : J.A. Magallón <jamagallon@ono.com>
Date : 2009-02-17 8:52 (15 days old)
References : http://marc.info/?l=linux-kernel&m=123486078219980&w=4
Handled-By : Brian Haley <brian.haley@hp.com>
Patch : http://marc.info/?l=linux-kernel&m=123517631120945&w=4

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12671
Subject : uvc_status_cleanup(): undefined reference to `input_unregister_device'
Submitter : Ingo Molnar <mingo@elte.hu>
Date : 2009-02-08 14:58 (24 days old)
References : http://marc.info/?l=linux-kernel&m=123410529909318&w=4
Handled-By : Randy Dunlap <randy.dunlap@oracle.com>
Patch : http://lkml.org/lkml/2009/2/15/172

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12667
Subject : Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)
Submitter : Paul Collins <paul@burly.ondioline.org>
Date : 2009-01-21 7:15 (42 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1c5745aa380efb6417b5681104b007c8612fb496
References : http://marc.info/?l=linux-kernel&m=123252215315106&w=4
Handled-By : Benjamin Herrenschmidt <benh@kernel.crashing.org>
Patch : http://lkml.org/lkml/2009/2/16/78

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 2.6.28,
unresolved as well as resolved, at:

http://bugzilla.kernel.org/show_bug.cgi?id=12398

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

Thanks,
Rafael