2.6.29-rc8-git5: Reported regressions from 2.6.28

2.6.29-rc8-git5: Reported regressions from 2.6.28

[Rafael J. Wysocki]

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
  ----------------------------------------
  2009-03-21      128       29          26
  2009-03-14      124       36          32
  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=12910
Subject		: Wierd iteractions with CPUFREQ
Submitter	: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date		: 2009-03-19 5:57 (3 days old)
References	: http://marc.info/?l=linux-kernel&m=123744265002098&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12909
Subject		: boot/kernel init duration regression from 2.6.28
Submitter	: CaT <cat@zip.com.au>
Date		: 2009-03-16 10:25 (6 days old)
References	: http://marc.info/?l=linux-kernel&m=123720083515950&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12908
Subject		: acpi_ex_extract_from_field -- div by zero
Submitter	: Jiri Slaby <jirislaby@gmail.com>
Date		: 2009-03-15 10:47 (7 days old)
References	: http://marc.info/?l=linux-kernel&m=123711408225013&w=4
Handled-By	: Lin Ming <ming.m.lin@intel.com>


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12872
Subject		: pwc mmap always fails with EAGAIN
Submitter	: Markus <M4rkusXXL@web.de>
Date		: 2009-03-14 16:42 (8 days old)
References	: http://marc.info/?l=linux-kernel&m=123704902201378&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12871
Subject		: usb bluetooth crashes system
Submitter	: Pavel Machek <pavel@ucw.cz>
Date		: 2009-03-10 11:23 (12 days old)
References	: http://marc.info/?l=linux-kernel&m=123668450400940&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12867
Subject		: 2.6.29-rc7 broke r8169 MAC on Thecus n2100 ARM board
Submitter	: Mikael Pettersson <mikpe@it.uu.se>
Date		: 2009-03-09 20:29 (13 days old)
References	: http://marc.info/?l=linux-kernel&m=123663065403760&w=4
Handled-By	: Francois Romieu <romieu@fr.zoreil.com>


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12861
Subject		: Xorg fails to start "Failed to allocate space for kernel memory manager"
Submitter	: Emil Karlson <jkarlson@cc.hut.fi>
Date		: 2009-03-12 12:06 (10 days old)


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12856
Subject		: Thinkpad freezes with X.org and acpi=rsdt
Submitter	: Maciej Piechotka <uzytkownik2@gmail.com>
Date		: 2009-03-11 16:46 (11 days old)


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12846
Subject		: Regression issue with kernel 2.6.29-rc6-git1: high power consumption during sleep
Submitter	: Raymond Wooninck <tittiatcoke@gmail.com>
Date		: 2009-03-09 08:18 (13 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1fb25cb8b83e85f5bf1a4adb3c9a254c4ce92405


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12836
Subject		: 2.6.29-rc breaks STD using Intel 945
Submitter	: Rolf Eike Beer <eike-kernel@sf-tec.de>
Date		: 2009-03-04 19:20 (18 days old)
References	: http://marc.info/?l=linux-kernel&m=123619451406192&w=4


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 (23 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
		  http://lkml.org/lkml/2009/3/14/265
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 (26 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=12800
Subject		: x86 PAT invalid vm_insert_pfn assumptions
Submitter	: Thomas Hellstrom <thellstrom@vmware.com>
Date		: 2009-03-02 01:40 (20 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 (23 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		: suspend regression from 29rc5 to 29rc6
Submitter	: yury <urykhy@gmail.com>
Date		: 2009-02-25 09:25 (25 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 (26 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 (29 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=14d200c5e5bd19219d930bbb9a5a22758c8f5bec
References	: http://marc.info/?l=linux-kernel&m=123523074304955&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 (29 days old)
References	: http://marc.info/?l=linux-kernel&m=123519687807246&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 (37 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e806b4957412bf472d826bd8cc571da041248799
References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
		  http://marc.info/?l=linux-kernel&m=123479975503827&w=2
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 (41 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=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 (42 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 (42 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 (52 days old)
References	: http://lkml.org/lkml/2009/2/9/205


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 (68 days old)
References	: http://marc.info/?l=linux-kernel&m=123187185426236&w=4


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 (69 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=12419
Subject		: possible circular locking dependency on i915 dma
Submitter	: Wang Chen <wangchen@cn.fujitsu.com>
Date		: 2009-01-08 14:11 (73 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


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

Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12870
Subject		: 2.6.29-rc "TKIP: replay detected" regression
Submitter	: Hugh Dickins <hugh@veritas.com>
Date		: 2009-03-11 12:07 (11 days old)
References	: http://marc.info/?l=linux-kernel&m=123677337219148&w=4
Handled-By	: John W. Linville <linville@tuxdriver.com>
Patch		: http://marc.info/?l=linux-wireless&m=123678463704691&w=2


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 (42 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 (60 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

[Bug #12419] possible circular locking dependency on i915 dma

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (73 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 #12574] possible circular locking dependency detected

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (52 days old)
References	: http://lkml.org/lkml/2009/2/9/205

[Bug #12667] Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended)

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (60 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

[Bug #12499] Problem with using bluetooth adaper connected to usb port

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (68 days old)
References	: http://marc.info/?l=linux-kernel&m=123187185426236&w=4

[Bug #12668] USB flash disk surprise disconnect

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (42 days old)
References	: http://marc.info/?l=linux-kernel&m=123408851821292&w=4

[Bug #12490] ath5k related kernel panic in 2.6.29-rc1

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (69 days old)
References	: http://marc.info/?l=linux-kernel&m=123174591509586&w=4
Handled-By	: Bob Copeland <me@bobcopeland.com>

[Bug #12670] BUG: unable to handle kernel paging request at pin_to_kill+0x21

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (42 days old)
References	: http://marc.info/?l=linux-kernel&m=123409113223833&w=4

[Bug #12671] uvc_status_cleanup(): undefined reference to `input_unregister_device'

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (42 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 #12763] Different cpu MHz values for processor0 and processor1

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (29 days old)
References	: http://marc.info/?l=linux-kernel&m=123519687807246&w=4

[Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (37 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e806b4957412bf472d826bd8cc571da041248799
References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
		  http://marc.info/?l=linux-kernel&m=123479975503827&w=2
Handled-By	: Len Brown <lenb@kernel.org>

[Bug #12681] s2ram: fails to wake up on Acer Extensa 4220 (SMP disabled)

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (41 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1cfe62c8010ac56e1bd3827e30386a87cc2f3594

[Bug #12778] suspend regression from 29rc5 to 29rc6

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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

[Bug #12771] Oops in i915_gem_flush

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (26 days old)

[Bug #12765] i915 VT switch with AIGLX causes X lock up

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (29 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=14d200c5e5bd19219d930bbb9a5a22758c8f5bec
References	: http://marc.info/?l=linux-kernel&m=123523074304955&w=4

[Bug #12792] 2.6.29-rc6-git4 boot failure

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (23 days old)
References	: http://ozlabs.org/pipermail/linuxppc-dev/2009-February/068771.html

[Bug #12800] x86 PAT invalid vm_insert_pfn assumptions

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (20 days old)

[Bug #12808] Suspend regression with 2.6.29-rc

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (26 days old)
References	: http://marc.info/?l=linux-kernel&m=123550257312112&w=4
Handled-By	: Rafael J. Wysocki <rjw@sisk.pl>

[Bug #12809] iozone regression with 2.6.29-rc6

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (23 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
		  http://lkml.org/lkml/2009/3/14/265
Handled-By	: Wu Fengguang <fengguang.wu@intel.com>

[Bug #12836] 2.6.29-rc breaks STD using Intel 945

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12836
Subject		: 2.6.29-rc breaks STD using Intel 945
Submitter	: Rolf Eike Beer <eike-kernel@sf-tec.de>
Date		: 2009-03-04 19:20 (18 days old)
References	: http://marc.info/?l=linux-kernel&m=123619451406192&w=4

[Bug #12856] Thinkpad freezes with X.org and acpi=rsdt

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12856
Subject		: Thinkpad freezes with X.org and acpi=rsdt
Submitter	: Maciej Piechotka <uzytkownik2@gmail.com>
Date		: 2009-03-11 16:46 (11 days old)

[Bug #12846] Regression issue with kernel 2.6.29-rc6-git1: high power consumption during sleep

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12846
Subject		: Regression issue with kernel 2.6.29-rc6-git1: high power consumption during sleep
Submitter	: Raymond Wooninck <tittiatcoke@gmail.com>
Date		: 2009-03-09 08:18 (13 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1fb25cb8b83e85f5bf1a4adb3c9a254c4ce92405

[Bug #12861] Xorg fails to start "Failed to allocate space for kernel memory manager"

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12861
Subject		: Xorg fails to start "Failed to allocate space for kernel memory manager"
Submitter	: Emil Karlson <jkarlson@cc.hut.fi>
Date		: 2009-03-12 12:06 (10 days old)

[Bug #12870] 2.6.29-rc "TKIP: replay detected" regression

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12870
Subject		: 2.6.29-rc "TKIP: replay detected" regression
Submitter	: Hugh Dickins <hugh@veritas.com>
Date		: 2009-03-11 12:07 (11 days old)
References	: http://marc.info/?l=linux-kernel&m=123677337219148&w=4
Handled-By	: John W. Linville <linville@tuxdriver.com>
Patch		: http://marc.info/?l=linux-wireless&m=123678463704691&w=2

[Bug #12867] 2.6.29-rc7 broke r8169 MAC on Thecus n2100 ARM board

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12867
Subject		: 2.6.29-rc7 broke r8169 MAC on Thecus n2100 ARM board
Submitter	: Mikael Pettersson <mikpe@it.uu.se>
Date		: 2009-03-09 20:29 (13 days old)
References	: http://marc.info/?l=linux-kernel&m=123663065403760&w=4
Handled-By	: Francois Romieu <romieu@fr.zoreil.com>

[Bug #12871] usb bluetooth crashes system

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12871
Subject		: usb bluetooth crashes system
Submitter	: Pavel Machek <pavel@ucw.cz>
Date		: 2009-03-10 11:23 (12 days old)
References	: http://marc.info/?l=linux-kernel&m=123668450400940&w=4

[Bug #12872] pwc mmap always fails with EAGAIN

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12872
Subject		: pwc mmap always fails with EAGAIN
Submitter	: Markus <M4rkusXXL@web.de>
Date		: 2009-03-14 16:42 (8 days old)
References	: http://marc.info/?l=linux-kernel&m=123704902201378&w=4

[Bug #12908] acpi_ex_extract_from_field -- div by zero

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12908
Subject		: acpi_ex_extract_from_field -- div by zero
Submitter	: Jiri Slaby <jirislaby@gmail.com>
Date		: 2009-03-15 10:47 (7 days old)
References	: http://marc.info/?l=linux-kernel&m=123711408225013&w=4
Handled-By	: Lin Ming <ming.m.lin@intel.com>

[Bug #12909] boot/kernel init duration regression from 2.6.28

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12909
Subject		: boot/kernel init duration regression from 2.6.28
Submitter	: CaT <cat@zip.com.au>
Date		: 2009-03-16 10:25 (6 days old)
References	: http://marc.info/?l=linux-kernel&m=123720083515950&w=4

[Bug #12910] Wierd iteractions with CPUFREQ

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12910
Subject		: Wierd iteractions with CPUFREQ
Submitter	: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date		: 2009-03-19 5:57 (3 days old)
References	: http://marc.info/?l=linux-kernel&m=123744265002098&w=4

Re: [Bug #12870] 2.6.29-rc "TKIP: replay detected" regression

[Hugh Dickins]

On Sat, 21 Mar 2009, Rafael J. Wysocki wrote:
> 
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12870
> Subject		: 2.6.29-rc "TKIP: replay detected" regression
> Submitter	: Hugh Dickins <hugh@veritas.com>
> Date		: 2009-03-11 12:07 (11 days old)
> References	: http://marc.info/?l=linux-kernel&m=123677337219148&w=4
> Handled-By	: John W. Linville <linville@tuxdriver.com>
> Patch		: http://marc.info/?l=linux-wireless&m=123678463704691&w=2

Yes, it still needs to be listed: I don't know why,
but John's patch has not yet appeared in Linus's tree.

Hugh

Re: 2.6.29-rc8-git5: Reported regressions from 2.6.28

[Ingo Molnar]

* Rafael J. Wysocki <rjw@sisk.pl> wrote:

> 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 (23 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
> 		  http://lkml.org/lkml/2009/3/14/265
> Handled-By	: Wu Fengguang <fengguang.wu@intel.com>

I think this was tracked back to the effective halving of 
dirty_ratio by 1cf6e7d83 ("mm: task dirty accounting fix") and 
doubling the ratio fixed the iozone regression.

> 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 (20 days old)

fix queued up for .30:

 895791d: VM, x86, PAT: add a new vm flag to track full pfnmap at mmap
 4bb9c5c: VM, x86, PAT: Change is_linear_pfn_mapping to not use vm_pgoff

> 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 (29 days old)
> References	: http://marc.info/?l=linux-kernel&m=123519687807246&w=4

first-bad-commit:

d96f94c: ACPI: Enable bit 11 in _PDC to advertise hw coord

	Ingo

Re: [Bug #12871] usb bluetooth crashes system

[Pavel Machek]

On Sat 2009-03-21 17:39:07, Rafael J. Wysocki wrote:
> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).
> 

In the meantime I verified that btusb.c from 2.6.28 does not have the
problem, and started to do kind of manual-bisect.


-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Re: [Bug #12872] pwc mmap always fails with EAGAIN

[Markus]

> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me 
know
> (either way).
> 
> 
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12872
> Subject		: pwc mmap always fails with EAGAIN
> Submitter	: Markus <M4rkusXXL@web.de>
> Date		: 2009-03-14 16:42 (8 days old)
> References	: http://marc.info/?l=linux-kernel&m=123704902201378&w=4

Still valid for 2.6.29-rc8-git5.

Markus

Re: [Bug #12867] 2.6.29-rc7 broke r8169 MAC on Thecus n2100 ARM board

[Mikael Pettersson]

Rafael J. Wysocki wrote:
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).
> 
> 
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=3D12867
> Subject		: 2.6.29-rc7 broke r8169 MAC on Thecus n2100 ARM board
> Submitter	: Mikael Pettersson <mikpe@it.uu.se>
> Date		: 2009-03-09 20:29 (13 days old)
> References	: http://marc.info/?l=3Dlinux-kernel&m=3D123663065403760&w=3D4
> Handled-By	: Francois Romieu <romieu@fr.zoreil.com>

Fixed in Linus' tree by ea8dbdd17099a9a5864ebd4c87e01e657b19c7ab.

Re: [Bug #12872] pwc mmap always fails with EAGAIN

[Alan Cox]

On Sun, 22 Mar 2009 13:37:35 +0100
Markus <M4rkusXXL@web.de> wrote:

> > This message has been generated automatically as a part of a report
> > of recent regressions.
> > 
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me 
> know
> > (either way).
> > 
> > 
> > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12872
> > Subject		: pwc mmap always fails with EAGAIN
> > Submitter	: Markus <M4rkusXXL@web.de>
> > Date		: 2009-03-14 16:42 (8 days old)
> > References	: http://marc.info/?l=linux-kernel&m=123704902201378&w=4
> 
> Still valid for 2.6.29-rc8-git5.

And not really likely to change until someone with a pwc camera adds lots
of printks to the code to work out why this happens.

Re: [Bug #12872] pwc mmap always fails with EAGAIN

[Ingo Molnar]

* Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:

> On Sun, 22 Mar 2009 13:37:35 +0100
> Markus <M4rkusXXL@web.de> wrote:
> 
> > > This message has been generated automatically as a part of a report
> > > of recent regressions.
> > > 
> > > The following bug entry is on the current list of known regressions
> > > from 2.6.28.  Please verify if it still should be listed and let me 
> > know
> > > (either way).
> > > 
> > > 
> > > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12872
> > > Subject		: pwc mmap always fails with EAGAIN
> > > Submitter	: Markus <M4rkusXXL@web.de>
> > > Date		: 2009-03-14 16:42 (8 days old)
> > > References	: http://marc.info/?l=linux-kernel&m=123704902201378&w=4
> > 
> > Still valid for 2.6.29-rc8-git5.
> 
> And not really likely to change until someone with a pwc camera adds lots
> of printks to the code to work out why this happens.

Or does a bisection to figure out the bad commit, because the report 
says that 2.6.28 worked.

The 'howto bisect' portion of:

  http://www.kernel.org/doc/local/git-quick.html

	Ingo

Re: [Bug #12872] pwc mmap always fails with EAGAIN

[Markus]

> > > Still valid for 2.6.29-rc8-git5.
> > 
> > And not really likely to change until someone with a pwc camera adds 
lots
> > of printks to the code to work out why this happens.
> 
> Or does a bisection to figure out the bad commit, because the report 
> says that 2.6.28 worked.
> 
> The 'howto bisect' portion of:
> 
>   http://www.kernel.org/doc/local/git-quick.html


Well I did a bisect:
be03d9e8022030c16abf534e33e185bfc3d40eef is first bad commit
commit be03d9e8022030c16abf534e33e185bfc3d40eef
Author: Suresh Siddha <suresh.b.siddha@intel.com>
Date:   Wed Feb 11 11:20:23 2009 -0800

    x86, pat: fix warn_on_once() while mapping 0-1MB range with /dev/mem

    Jeff Mahoney reported:

    > With Suse's hwinfo tool, on -tip:
    > WARNING: at arch/x86/mm/pat.c:637 reserve_pfn_range+0x5b/0x26d()

    reserve_pfn_range() is not tracking the memory range below 1MB
    as non-RAM and as such is inconsistent with similar checks in
    reserve_memtype() and free_memtype()

    Rename the pagerange_is_ram() to pat_pagerange_is_ram() and add the
    "track legacy 1MB region as non RAM" condition.

    And also, fix reserve_pfn_range() to return -EINVAL, when the pfn
    range is RAM. This is to be consistent with this API design.

    Reported-and-tested-by: Jeff Mahoney <jeffm@suse.com>
    Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
    Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
    Signed-off-by: Ingo Molnar <mingo@elte.hu>

:040000 040000 feb3bf21d762e885284cb1bedb5d2c6c0d16811b 
b4c2143775386ce15dd49b6749c1f7913d8beb00 M      arch

So I ran "git bisect reset ; git revert 
be03d9e8022030c16abf534e33e185bfc3d40eef" and rebuild. That worked!

I dont know if this is valid to do, but its working fine.
Its an amd64 system with CONFIG_X86_PAT=y.

Need some feedback ;)

Markus

Re: [Bug #12872] pwc mmap always fails with EAGAIN

[Ingo Molnar]

* Markus <M4rkusXXL@web.de> wrote:

> > > > Still valid for 2.6.29-rc8-git5.
> > > 
> > > And not really likely to change until someone with a pwc camera adds 
> lots
> > > of printks to the code to work out why this happens.
> > 
> > Or does a bisection to figure out the bad commit, because the report 
> > says that 2.6.28 worked.
> > 
> > The 'howto bisect' portion of:
> > 
> >   http://www.kernel.org/doc/local/git-quick.html
> 
> 
> Well I did a bisect:
> be03d9e8022030c16abf534e33e185bfc3d40eef is first bad commit
> commit be03d9e8022030c16abf534e33e185bfc3d40eef
> Author: Suresh Siddha <suresh.b.siddha@intel.com>
> Date:   Wed Feb 11 11:20:23 2009 -0800
> 
>     x86, pat: fix warn_on_once() while mapping 0-1MB range with /dev/mem
> 
>     Jeff Mahoney reported:
> 
>     > With Suse's hwinfo tool, on -tip:
>     > WARNING: at arch/x86/mm/pat.c:637 reserve_pfn_range+0x5b/0x26d()
> 
>     reserve_pfn_range() is not tracking the memory range below 1MB
>     as non-RAM and as such is inconsistent with similar checks in
>     reserve_memtype() and free_memtype()
> 
>     Rename the pagerange_is_ram() to pat_pagerange_is_ram() and add the
>     "track legacy 1MB region as non RAM" condition.
> 
>     And also, fix reserve_pfn_range() to return -EINVAL, when the pfn
>     range is RAM. This is to be consistent with this API design.
> 
>     Reported-and-tested-by: Jeff Mahoney <jeffm@suse.com>
>     Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
>     Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
>     Signed-off-by: Ingo Molnar <mingo@elte.hu>
> 
> :040000 040000 feb3bf21d762e885284cb1bedb5d2c6c0d16811b 
> b4c2143775386ce15dd49b6749c1f7913d8beb00 M      arch
> 
> So I ran "git bisect reset ; git revert 
> be03d9e8022030c16abf534e33e185bfc3d40eef" and rebuild. That worked!
> 
> I dont know if this is valid to do, but its working fine.
> Its an amd64 system with CONFIG_X86_PAT=y.
> 
> Need some feedback ;)

First thing to check would be whether the latest round of PAT fixes 
(not yet upstream) fix the problem:

   http://people.redhat.com/mingo/tip.git/README

Suresh, any ideas?

	Ingo

Re: [Bug #12792] 2.6.29-rc6-git4 boot failure

[Benjamin Herrenschmidt]

On Sat, 2009-03-21 at 17:39 +0100, Rafael J. Wysocki wrote:
> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).

Sachin, did you find anything about this one ?

Cheers,
Ben. 
> 
> 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 (23 days old)
> References	: http://ozlabs.org/pipermail/linuxppc-dev/2009-February/068771.html
> 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/

Re: 2.6.29-rc8-git5: Reported regressions from 2.6.28

[Wu Fengguang]

On Sun, Mar 22, 2009 at 04:05:34AM +0800, Ingo Molnar wrote:
> 
> * Rafael J. Wysocki <rjw@sisk.pl> wrote:
> 
> > 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 (23 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
> > 		  http://lkml.org/lkml/2009/3/14/265
> > Handled-By	: Wu Fengguang <fengguang.wu@intel.com>
> 
> I think this was tracked back to the effective halving of 
> dirty_ratio by 1cf6e7d83 ("mm: task dirty accounting fix") and 
> doubling the ratio fixed the iozone regression.

Yes, exactly. The patch for fixing this regression is trivial.

However it may be better to revert 1cf6e7d83 for 2.6.29,
and merge 1cf6e7d83 together with this patch for 2.6.30-rc1.
This allows a larger window for testing out the possible impacts
on other workloads.
 
Thanks,
Fengguang
---
writeback: double the dirty thresholds

Enlarge default dirty ratios from 5/10 to 10/20.
This fixes [Bug #12809] iozone regression with 2.6.29-rc6.

The iozone benchmarks are performed on a 1200M file, with 8GB ram.

iozone -i 0 -i 1 -i 2 -i 3 -i 4 -r 4k -s 64k -s 512m -s 1200m -b tmp.xls
iozone -B -r 4k -s 64k -s 512m -s 1200m -b tmp.xls

The performance regression is triggered by commit 1cf6e7d83bf3(mm: task
dirty accounting fix), which makes more correct/thorough dirty accounting.

The default 5/10 dirty ratios were picked (a) with the old dirty
logic and (b) largely at random and (c) designed to be aggressive. In
particular, that (a) means that having fixed some of the dirty accounting,
maybe the real bug is now that it was always too aggressive, just hidden
by an accounting issue.

The enlarged 10/20 dirty ratios are just about enough to fix the regression.

Cc: Nick Piggin <npiggin@suse.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: "Lin, Ming M" <ming.m.lin@intel.com>
Tested-by: "Lin, Ming M" <ming.m.lin@intel.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
---
 mm/page-writeback.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- mm.orig/mm/page-writeback.c
+++ mm/mm/page-writeback.c
@@ -66,7 +66,7 @@ static inline long sync_writeback_pages(
 /*
  * Start background writeback (via pdflush) at this percentage
  */
-int dirty_background_ratio = 5;
+int dirty_background_ratio = 10;
 
 /*
  * dirty_background_bytes starts at 0 (disabled) so that it is a function of
@@ -83,7 +83,7 @@ int vm_highmem_is_dirtyable;
 /*
  * The generator of dirty data starts writeback at this percentage
  */
-int vm_dirty_ratio = 10;
+int vm_dirty_ratio = 20;
 
 /*
  * vm_dirty_bytes starts at 0 (disabled) so that it is a function of

Re: [Bug #12792] 2.6.29-rc6-git4 boot failure

[Sachin Sant]

Benjamin Herrenschmidt wrote:
> On Sat, 2009-03-21 at 17:39 +0100, Rafael J. Wysocki wrote:
>   
>> This message has been generated automatically as a part of a report
>> of recent regressions.
>>
>> The following bug entry is on the current list of known regressions
>> from 2.6.28.  Please verify if it still should be listed and let me know
>> (either way).
>>     
>
> Sachin, did you find anything about this one ?
>   
Hi Ben,

I narrowed it down to 2.6.28-git2(Boots) while 2.6.28-git4(fails to boot).
I could not boot test 2.6.28-git3 as i ran into kernel compilation issues.

Here is the error message i got when i tried compiling 2.6.28-git3.

  LD      vmlinux.o
ld: dynreloc miscount for kernel/built-in.o, section .opd
ld: can not edit opd Bad value

I think the above one was some tool chain related issue.

I don't know how to git bisect using these two releases (2.6.28-git2/2.6.28-git4).
I guess that is not possible since there are no commit tags for these releases.
But i could be wrong.

Is there anything else that i could try out to find a solution for this ?
The machine in question is a Power Mac G5 running Ubuntu Hardy with a
PPC970, altivec supported CPU(2).

For the record i can still recreate this issue with 2.6.29-rc8-git6.

Thanks
-Sachin

-- 

---------------------------------
Sachin Sant
IBM Linux Technology Center
India Systems and Technology Labs
Bangalore, India
---------------------------------

Re: [Bug #12792] 2.6.29-rc6-git4 boot failure

[Benjamin Herrenschmidt]

> I narrowed it down to 2.6.28-git2(Boots) while 2.6.28-git4(fails to boot).
> I could not boot test 2.6.28-git3 as i ran into kernel compilation issues.
> 
> Here is the error message i got when i tried compiling 2.6.28-git3.
> 
>   LD      vmlinux.o
> ld: dynreloc miscount for kernel/built-in.o, section .opd
> ld: can not edit opd Bad value
> 
> I think the above one was some tool chain related issue.
> 
> I don't know how to git bisect using these two releases (2.6.28-git2/2.6.28-git4).
> I guess that is not possible since there are no commit tags for these releases.
> But i could be wrong.
> 
> Is there anything else that i could try out to find a solution for this ?
> The machine in question is a Power Mac G5 running Ubuntu Hardy with a
> PPC970, altivec supported CPU(2).
> 
> For the record i can still recreate this issue with 2.6.29-rc8-git6.

Strange I have such a powermac here and haven't seen that problem... let
me dig a bit.

Cheers,
Ben.

Re: [Bug #12872] pwc mmap always fails with EAGAIN

[Alan Cox]

> >    Rename the pagerange_is_ram() to pat_pagerange_is_ram() and add the
> >    "track legacy 1MB region as non RAM" condition.

But the lowest 640K are most definitely RAM.

Re: [Bug #12872] pwc mmap always fails with EAGAIN

[Arjan van de Ven]

On Mon, 23 Mar 2009 10:49:45 +0000
Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:

> > >    Rename the pagerange_is_ram() to pat_pagerange_is_ram() and
> > > add the "track legacy 1MB region as non RAM" condition.
> 
> But the lowest 640K are most definitely RAM.

not all of it ;)

"ram" is defined as "the kernel memory allocator knows about it and
would hand it out" in this context; BIOS owned areas are not "ram" in
this context.
-- 
Arjan van de Ven 	Intel Open Source Technology Centre
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org

Re: 2.6.29-rc8-git5: Reported regressions from 2.6.28

[Linus Torvalds]

On Mon, 23 Mar 2009, Wu Fengguang wrote:
> > 
> > I think this was tracked back to the effective halving of 
> > dirty_ratio by 1cf6e7d83 ("mm: task dirty accounting fix") and 
> > doubling the ratio fixed the iozone regression.
> 
> Yes, exactly. The patch for fixing this regression is trivial.

I was planning on applying that patch only after 2.6.29 is out, and then 
if there are no surprising side effects and nobody complains, we'd then 
back-port it into stable.

		Linus

Re: [Bug #12872] pwc mmap always fails with EAGAIN

[Markus]

> First thing to check would be whether the latest round of PAT fixes 
> (not yet upstream) fix the problem:

I checked 2.6.29 (the vanilla release) it still has this regression.

I also checked your "tip"-version and it works! (Built the kernel on 
march the 25th. But got no time to test it... up to now...)

Markus

[Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.28 and 2.6.29.

The following bug entry is on the current list of known regressions
introduced between 2.6.28 and 2.6.29.  Please verify if it still should
be listed and let me know (either way).


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 (115 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e806b4957412bf472d826bd8cc571da041248799
References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
		  http://marc.info/?l=linux-kernel&m=123479975503827&w=2
Handled-By	: Eric Anholt <eric@anholt.net>

[Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.28 and 2.6.29.

The following bug entry is on the current list of known regressions
introduced between 2.6.28 and 2.6.29.  Please verify if it still should
be listed and let me know (either way).


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 (107 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e806b4957412bf472d826bd8cc571da041248799
References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
		  http://marc.info/?l=linux-kernel&m=123479975503827&w=2
Handled-By	: Eric Anholt <eric@anholt.net>

[Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.28 and 2.6.29.

The following bug entry is on the current list of known regressions
introduced between 2.6.28 and 2.6.29.  Please verify if it still should
be listed and let me know (either way).


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 (101 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e806b4957412bf472d826bd8cc571da041248799
References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
		  http://marc.info/?l=linux-kernel&m=123479975503827&w=2
Handled-By	: Eric Anholt <eric@anholt.net>

[Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.28 and 2.6.29.

The following bug entry is on the current list of known regressions
introduced between 2.6.28 and 2.6.29.  Please verify if it still should
be listed and let me know (either way).


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 (93 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e806b4957412bf472d826bd8cc571da041248799
References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
		  http://marc.info/?l=linux-kernel&m=123479975503827&w=2
Handled-By	: Eric Anholt <eric@anholt.net>

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Nico Schottelius]

[-- Attachment #1: Type: text/plain, Size: 268 bytes --]

Update:

  Brightness works on 2.6.30-rc3-next-20090428-04067-g72f1b63 (linux-next)

-- 
Think about Free and Open Source Software (FOSS).
http://nico.schottelius.org/documentations/foss/the-term-foss/

PGP: BFE4 C736 ABE5 406F 8F42  F7CF B8BE F92A 9885 188C

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 197 bytes --]

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Niel Lambrechts]

On 04/26/2009 10:20 PM, Nico Schottelius wrote:
> Rafael J. Wysocki [Sun, Apr 26, 2009 at 11:46:25AM +0200]:
>> This message has been generated automatically as a part of a report
>> of regressions introduced between 2.6.28 and 2.6.29.
> 
> Sure, still broken. For some version it works, for most newer not,
> as reported.
> 
> Can we stop that nag-service and spent time in fixing it better?

You should rather be quiet about the time people are investing in this
community, especially when others strongly differ from you the merit of
that service.

Without Rafael's reports some of the regressions I have posted probably
would have not been investigated at all.

Niel
--

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

On Sunday 26 April 2009, Nico Schottelius wrote:
> Rafael J. Wysocki [Sun, Apr 26, 2009 at 11:46:25AM +0200]:
> > This message has been generated automatically as a part of a report
> > of regressions introduced between 2.6.28 and 2.6.29.
> 
> Sure, still broken. For some version it works, for most newer not,
> as reported.
> 
> Can we stop that nag-service and spent time in fixing it better?

Well, I'm not familiar with the code that broke and this is a way of notifying
the right people of the problem.

Thanks,
Rafael

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Nico Schottelius]

[-- Attachment #1: Type: text/plain, Size: 528 bytes --]

Rafael J. Wysocki [Sun, Apr 26, 2009 at 11:46:25AM +0200]:
> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.28 and 2.6.29.

Sure, still broken. For some version it works, for most newer not,
as reported.

Can we stop that nag-service and spent time in fixing it better?

Nico

-- 
Think about Free and Open Source Software (FOSS).
http://nico.schottelius.org/documentations/foss/the-term-foss/

PGP: BFE4 C736 ABE5 406F 8F42  F7CF B8BE F92A 9885 188C

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 197 bytes --]

[Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.28 and 2.6.29.

The following bug entry is on the current list of known regressions
introduced between 2.6.28 and 2.6.29.  Please verify if it still should
be listed and let me know (either way).


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 (73 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e806b4957412bf472d826bd8cc571da041248799
References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
		  http://marc.info/?l=linux-kernel&m=123479975503827&w=2
Handled-By	: Eric Anholt <eric@anholt.net>

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Nico Schottelius]

[-- Attachment #1: Type: text/plain, Size: 945 bytes --]

Nico Schottelius [Fri, Apr 17, 2009 at 04:35:32PM +0200]:
> Brightness is *AGAIN* broken in 2.6.30-rc2-00195-g9f76208.

2.6.30-rc2-next-20090420:

My display *is* at full brightness, but I cannot adjust it,
because I'm missing some files:

[12:35] ikn:~# ls /sys/class/video_output 
[12:35] ikn:~# ls /sys/class/backlight   
[12:35] ikn:~# ls /proc/acpi           
ac_adapter  debug_layer  embedded_controller  fan   power_resource  thermal_zone
battery     debug_level  event          ibm   processor     wakeup
button      dsdt   fadt         info  sleep

So I cannot adjust brightness. I saw that
/proc/acpi/video/VID/LCD0/brightness was not existing on 2.6.30-rc2-00195-g9f76208
either.

Bug or am I missing some new file location?

Nico

-- 
Think about Free and Open Source Software (FOSS).
http://nico.schottelius.org/documentations/foss/the-term-foss/

PGP: BFE4 C736 ABE5 406F 8F42  F7CF B8BE F92A 9885 188C

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 197 bytes --]

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

On Tuesday 07 April 2009, Len Brown wrote:
> 
> On Mon, 6 Apr 2009, Rafael J. Wysocki wrote:
> 
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> > 
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me know
> > (either way).
> > 
> > 
> > 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 (53 days old)
> > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e806b4957412bf472d826bd8cc571da041248799
> > References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
> > 		  http://marc.info/?l=linux-kernel&m=123479975503827&w=2
> 
> > Handled-By	: Len Brown <lenb@kernel.org>
> 
> Handled-By	: Eric Anholt <eric@anholt.net>

Updated.

Thanks,
Rafael

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Len Brown]

On Mon, 6 Apr 2009, Rafael J. Wysocki wrote:

> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).
> 
> 
> 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 (53 days old)
> First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e806b4957412bf472d826bd8cc571da041248799
> References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
> 		  http://marc.info/?l=linux-kernel&m=123479975503827&w=2

> Handled-By	: Len Brown <lenb@kernel.org>

Handled-By	: Eric Anholt <eric@anholt.net>

thanks,
Len Brown, Intel Open Source Technology Center

[Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (53 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e806b4957412bf472d826bd8cc571da041248799
References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
		  http://marc.info/?l=linux-kernel&m=123479975503827&w=2
Handled-By	: Len Brown <lenb@kernel.org>

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Len Brown]

On Sat, 7 Mar 2009, Rafael J. Wysocki wrote:

> On Wednesday 04 March 2009, Nico Schottelius wrote:
> > Rafael J. Wysocki [Tue, Mar 03, 2009 at 08:25:55PM +0100]:
> > > This message has been generated automatically as a part of a report
> > > of recent regressions.
> > > 
> > > The following bug entry is on the current list of known regressions
> > > from 2.6.28.  Please verify if it still should be listed and let me know
> > > (either way).
> > 
> > Well, well... nobody really cares about this bug, so it's still
> > there. Seems this automatic reminder will be persistent until 2.6.30.
> 
> Well, thanks for the update.

It is a DRI bug, assigned to   	
Eric Anholt -- I'm not handling it.


thanks,
Len Brown, Intel Open Source Technology Center

[Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (30 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e806b4957412bf472d826bd8cc571da041248799
References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
		  http://marc.info/?l=linux-kernel&m=123479975503827&w=2
Handled-By	: Len Brown <lenb@kernel.org>

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

On Wednesday 04 March 2009, Nico Schottelius wrote:
> Rafael J. Wysocki [Tue, Mar 03, 2009 at 08:25:55PM +0100]:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> > 
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me know
> > (either way).
> 
> Well, well... nobody really cares about this bug, so it's still
> there. Seems this automatic reminder will be persistent until 2.6.30.

Well, thanks for the update.

Rafael

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Nico Schottelius]

[-- Attachment #1: Type: text/plain, Size: 652 bytes --]

Rafael J. Wysocki [Tue, Mar 03, 2009 at 08:25:55PM +0100]:
> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).

Well, well... nobody really cares about this bug, so it's still
there. Seems this automatic reminder will be persistent until 2.6.30.

Nico

-- 
Think about Free and Open Source Software (FOSS).
http://nico.schottelius.org/documentations/foss/the-term-foss/

PGP: BFE4 C736 ABE5 406F 8F42  F7CF B8BE F92A 9885 188C

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 197 bytes --]

[Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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>

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

On Tuesday 24 February 2009, Nico Schottelius wrote:
> Still existing.

Thanks for the update.

> Rafael J. Wysocki [Mon, Feb 23, 2009 at 10:48:13PM +0100]:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> > 
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me know
> > (either way).
> > 
> > 
> > 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 (11 days old)
> > References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
> > Handled-By	: Len Brown <lenb@kernel.org>

Rafael

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Nico Schottelius]

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Still existing.

Rafael J. Wysocki [Mon, Feb 23, 2009 at 10:48:13PM +0100]:
> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).
> 
> 
> 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 (11 days old)
> References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
> Handled-By	: Len Brown <lenb@kernel.org>
> 
> 

-- 
Think about Free and Open Source Software (FOSS).
http://nico.schottelius.org/documentations/foss/the-term-foss/

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[Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (11 days old)
References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
Handled-By	: Len Brown <lenb@kernel.org>

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Nico Schottelius]

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Jesse Barnes [Tue, Feb 17, 2009 at 03:23:57PM -0800]:
> On Tuesday, February 17, 2009 3:13 pm Matthew Garrett wrote:
> > This was drm failing to initialise because of incorrect mtrr setup and
> > opregion not working as a result.
> 
> I sent one out; it just made the ioremap in i915_initialize into an ioremap_wc 
> for consistency.

If you refer to <200902131104.04318.jbarnes@virtuousgeek.org>,
as stated in <20090216131351.GA4839@denkbrett.schottelius.org>, it does not
fix the problem here.

Sincerly,

Nico

-- 
Think about Free and Open Source Software (FOSS).
http://nico.schottelius.org/documentations/foss/the-term-foss/

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Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Jesse Barnes]

On Tuesday, February 17, 2009 3:13 pm Matthew Garrett wrote:
> On Tue, Feb 17, 2009 at 03:05:25PM -0800, Eric Anholt wrote:
> > On Sun, 2009-02-15 at 13:43 +0000, Matthew Garrett wrote:
> > > On Sat, Feb 14, 2009 at 09:38:23PM +0100, Rafael J. Wysocki wrote:
> > > > The following bug entry is on the current list of known regressions
> > > > from 2.6.28.  Please verify if it still should be listed and let me
> > > > know (either way).
> > >
> > > I think Eric sent a test patch for this. Did that get pushed?
> >
> > I haven't done anything in the area of brightness control.
>
> This was drm failing to initialise because of incorrect mtrr setup and
> opregion not working as a result.

I sent one out; it just made the ioremap in i915_initialize into an ioremap_wc 
for consistency.

-- 
Jesse Barnes, Intel Open Source Technology Center

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Matthew Garrett]

On Tue, Feb 17, 2009 at 03:05:25PM -0800, Eric Anholt wrote:
> On Sun, 2009-02-15 at 13:43 +0000, Matthew Garrett wrote:
> > On Sat, Feb 14, 2009 at 09:38:23PM +0100, Rafael J. Wysocki wrote:
> > 
> > > The following bug entry is on the current list of known regressions
> > > from 2.6.28.  Please verify if it still should be listed and let me know
> > > (either way).
> > 
> > I think Eric sent a test patch for this. Did that get pushed?
> 
> I haven't done anything in the area of brightness control.

This was drm failing to initialise because of incorrect mtrr setup and 
opregion not working as a result.

-- 
Matthew Garrett | mjg59@srcf.ucam.org

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Eric Anholt]

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On Sun, 2009-02-15 at 13:43 +0000, Matthew Garrett wrote:
> On Sat, Feb 14, 2009 at 09:38:23PM +0100, Rafael J. Wysocki wrote:
> 
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me know
> > (either way).
> 
> I think Eric sent a test patch for this. Did that get pushed?

I haven't done anything in the area of brightness control.

-- 
Eric Anholt
eric@anholt.net                         eric.anholt@intel.com



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Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

On Sunday 15 February 2009, Matthew Garrett wrote:
> On Sat, Feb 14, 2009 at 09:38:23PM +0100, Rafael J. Wysocki wrote:
> 
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me know
> > (either way).
> 
> I think Eric sent a test patch for this. Did that get pushed?

I haven't found it.

Rafael

Re: [Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Matthew Garrett]

On Sat, Feb 14, 2009 at 09:38:23PM +0100, Rafael J. Wysocki wrote:

> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).

I think Eric sent a test patch for this. Did that get pushed?

-- 
Matthew Garrett | mjg59@srcf.ucam.org

[Bug #12705] X200: Brightness broken since 2.6.29-rc4-58-g4c098bc

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


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 (2 days old)
References	: http://marc.info/?l=linux-kernel&m=123451768406825&w=4
Handled-By	: Len Brown <lenb@kernel.org>