[Bug #11380] lockdep warning: cpu_add_remove_lock at:cpu_maps_update_begin+0x14/0x16

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From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:40 pm

This message contains a list of some regressions introduced between 2.6.26 and
2.6.27, 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 introduced between 2.6.26
and 2.6.27, 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
  ----------------------------------------
  2008-11-09      196       28          23
  2008-11-02      195       34          28
  2008-10-26      190       34          29
  2008-10-04      181       41          33
  2008-09-27      173       35          28
  2008-09-21      169       45          36
  2008-09-15      163       46          32
  2008-09-12      163       51          38
  2008-09-07      150       43          33
  2008-08-30      135       48          36
  2008-08-23      122       48          40
  2008-08-16      103       47          37
  2008-08-10       80       52          31
  2008-08-02       47       31          20


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

Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11983
Subject		: iwlagn: wrong command queue 31, command id 0x0
Submitter	: Matt Mackall <mpm@selenic.com>
Date		: 2008-11-06 4:16 (4 days old)
References	: http://marc.info/?l=linux-kernel&m=122598672815803&w=4
		  http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1703
Handled-By	: reinette chatre <reinette.chatre@intel.com>


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11892
Subject		: Battery information and status disappearing and wrong thermal status.
Submitter	: Mark <makalsky@gmail.com>
Date		: 2008-10-29 15:33 (12 days old)
Handled-By	: Alexey Starikovskiy ...
From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:40 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11207
Subject		: VolanoMark regression with 2.6.27-rc1
Submitter	: Zhang, Yanmin <yanmin_zhang@linux.intel.com>
Date		: 2008-07-31 3:20 (102 days old)
References	: http://marc.info/?l=linux-kernel&m=121747464114335&w=4
Handled-By	: Zhang, Yanmin <yanmin_zhang@linux.intel.com>
		  Peter Zijlstra <a.p.zijlstra@chello.nl>
		  Dhaval Giani <dhaval@linux.vnet.ibm.com>
		  Miao Xie <miaox@cn.fujitsu.com>


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11215
Subject		: INFO: possible recursive locking detected ps2_command
Submitter	: Zdenek Kabelac <zdenek.kabelac@gmail.com>
Date		: 2008-07-31 9:41 (102 days old)
References	: http://marc.info/?l=linux-kernel&m=121749737011637&w=4


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11308
Subject		: tbench regression on each kernel release from  2.6.22 -> 2.6.28
Submitter	: Christoph Lameter <cl@linux-foundation.org>
Date		: 2008-08-11 18:36 (91 days old)
References	: http://marc.info/?l=linux-kernel&m=121847986119495&w=4
		  http://marc.info/?l=linux-kernel&m=122125737421332&w=4


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11264
Subject		: Invalid op opcode in kernel/workqueue
Submitter	: Jean-Luc Coulon <jean.luc.coulon@gmail.com>
Date		: 2008-08-07 04:18 (95 days old)


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11209
Subject		: 2.6.27-rc1 process time accounting
Submitter	: Lukas Hejtmanek <xhejtman@ics.muni.cz>
Date		: 2008-07-31 10:43 (102 days old)
References	: http://marc.info/?l=linux-kernel&m=121750102917490&w=4
		  http://lkml.org/lkml/2008/9/30/199
		  http://marc.info/?l=linux-kernel&m=122470441624295&w=4
Handled-By	: Peter Zijlstra <a.p.zijlstra@chello.nl>


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11340
Subject		: LTP overnight run resulted in unusable box
Submitter	: Alexey Dobriyan <adobriyan@gmail.com>
Date		: 2008-08-13 9:24 (89 days old)
References	: http://marc.info/?l=linux-kernel&m=121861951902949&w=4


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11608
Subject		: 2.6.27-rc6 BUG: unable to handle kernel paging request
Submitter	: John Daiker <daikerjohn@gmail.com>
Date		: 2008-09-16 23:00 (55 days old)
References	: http://marc.info/?l=linux-kernel&m=122160611517267&w=4


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11569
Subject		: Panic stop CPUs regression
Submitter	: Andi Kleen <andi@firstfloor.org>
Date		: 2008-09-02 13:49 (69 days old)
References	: http://marc.info/?l=linux-kernel&m=122036356127282&w=4


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11476
Subject		: failure to associate after resume from suspend to ram
Submitter	: Michael S. Tsirkin <m.s.tsirkin@gmail.com>
Date		: 2008-09-01 13:33 (70 days old)
References	: http://marc.info/?l=linux-kernel&m=122028529415108&w=4
Handled-By	: Zhu Yi <yi.zhu@intel.com>
		  Dan Williams <dcbw@redhat.com>
		  Jouni Malinen <j@w1.fi>


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11407
Subject		: suspend: unable to handle kernel paging request
Submitter	: Vegard Nossum <vegard.nossum@gmail.com>
Date		: 2008-08-21 17:28 (81 days old)
References	: http://marc.info/?l=linux-kernel&m=121933974928881&w=4
Handled-By	: Rafael J. Wysocki <rjw@sisk.pl>
		  Pekka Enberg <penberg@cs.helsinki.fi>
		  Pavel Machek <pavel@suse.cz>


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11404
Subject		: BUG: in 2.6.23-rc3-git7 in do_cciss_intr
Submitter	: rdunlap <randy.dunlap@oracle.com>
Date		: 2008-08-21 5:52 (81 days old)
References	: http://marc.info/?l=linux-kernel&m=121929819616273&w=4
		  http://marc.info/?l=linux-kernel&m=121932889105368&w=4
Handled-By	: Miller, Mike (OS Dev) <Mike.Miller@hp.com>
		  James Bottomley <James.Bottomley@hansenpartnership.com>


--

From: Randy Dunlap
Date: Sunday, November 9, 2008 - 3:24 pm

-- 
~Randy
--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11380
Subject		: lockdep warning: cpu_add_remove_lock at:cpu_maps_update_begin+0x14/0x16
Submitter	: Ingo Molnar <mingo@elte.hu>
Date		: 2008-08-20 6:44 (82 days old)
References	: http://marc.info/?l=linux-kernel&m=121921480931970&w=4


--

From: Ingo Molnar
Date: Monday, November 10, 2008 - 12:30 am

had a quick look again: i believe this one still triggers, and it's 
caused by some interaction between input code and workqueue code. I 
think it started triggering when Oleg's workqueue annotation patches 
went upstream:

6af8bf3: workqueues: add comments to __create_workqueue_key()
8448502: workqueues: do CPU_UP_CANCELED if CPU_UP_PREPARE fails
8de6d30: workqueues: schedule_on_each_cpu() can use schedule_work_on()
ef1ca23: workqueues: queue_work() can use queue_work_on()
a67da70: workqueues: lockdep annotations for flush_work()
3da1c84: workqueues: make get_online_cpus() useable for work->func()
8616a89: workqueues: schedule_on_each_cpu: use flush_work()
db70089: workqueues: implement flush_work()
1a4d9b0: workqueues: insert_work: use "list_head *" instead of "int tail"

plus when the cpu_active_map changes went upstream:

e761b77: cpu hotplug, sched: Introduce cpu_active_map and redo sched domain ma

so it's possibly an old input layer locking problem that only got 
exposed via current changes. It's not an input layer bug that got 
introduced ~80 days ago, but possibly an input layer problem. Or a CPU 
hotplug bug. Or a workqueue bug.

	Ingo
--

From: Oleg Nesterov
Date: Monday, November 10, 2008 - 6:22 am

"make get_online_cpus() useable for work->func()" changed the locking.
destroy_workqueue() was changed to take cpu_maps_update_begin() instead
of get_online_cpus(). Other patches can't make any difference afaics.

Currently I don't understand why lockdep complains, will try to do
more grepping later.

Oleg.

--

From: KOSAKI Motohiro
Date: Monday, November 10, 2008 - 7:10 pm

I check original report.
Is this really cpu hotplug related warnings?

it seem simple ABBA lock, right?


-> #4 (&dev->mutex){--..}:
       [<c0160f87>] validate_chain+0x831/0xaa2
       [<c0161872>] __lock_acquire+0x67a/0x6e0
       [<c0161933>] lock_acquire+0x5b/0x81
       [<c0a660e4>] mutex_lock_interruptible_nested+0xde/0x2f8
       [<c0782d02>] input_register_handle+0x26/0x7a			dev->mutex
       [<c04a62c9>] kbd_connect+0x64/0x8d
       [<c0782842>] input_attach_handler+0x38/0x6b
       [<c0784216>] input_register_handler+0x74/0xc3			input_mutex
       [<c0f54e4b>] kbd_init+0x66/0x91
       [<c0f54f7b>] vty_init+0xce/0xd7
       [<c0f54952>] tty_init+0x193/0x197
       [<c010112a>] do_one_initcall+0x42/0x133
       [<c0f2d5cb>] kernel_init+0x16e/0x1d5
       [<c0117c03>] kernel_thread_helper+0x7/0x10
       [<ffffffff>] 0xffffffff

-> #3 (input_mutex){--..}:
       [<c0160f87>] validate_chain+0x831/0xaa2
       [<c0161872>] __lock_acquire+0x67a/0x6e0
       [<c0161933>] lock_acquire+0x5b/0x81
       [<c0a660e4>] mutex_lock_interruptible_nested+0xde/0x2f8
       [<c0783fbe>] input_register_device+0xff/0x17f		input_mutex
       [<c048a889>] acpi_button_add+0x31e/0x429
       [<c04889f4>] acpi_device_probe+0x43/0xde
       [<c052c67f>] driver_probe_device+0xa5/0x120
       [<c052c73c>] __driver_attach+0x42/0x64			dev->sem
       [<c052be91>] bus_for_each_dev+0x43/0x65
       [<c052c507>] driver_attach+0x19/0x1b
       [<c052c251>] bus_add_driver+0x9e/0x1a1
       [<c052c8de>] driver_register+0x76/0xd2
       [<c0488dc3>] acpi_bus_register_driver+0x3f/0x41
       [<c0f51bf2>] acpi_button_init+0x32/0x51
       [<c010112a>] do_one_initcall+0x42/0x133
       [<c0f2d201>] do_async_initcalls+0x1a/0x2a
       [<c0150eec>] run_workqueue+0xc3/0x193			
       [<c015195d>] worker_thread+0xbb/0xc7
       [<c0153e2a>] kthread+0x40/0x66
       [<c0117c03>] kernel_thread_helper+0x7/0x10
       [<ffffffff>] 0xffffffff


--

From: Oleg Nesterov
Date: Tuesday, November 11, 2008 - 5:01 am

^^^^^^^^

What is the kernel version, btw? I can't find do_async_initcalls
in 2.6.27 or 2.6.28.

Anyway, this really looks like lockdep bug to me. Even if we really
have the circular dependency (will try to grep more) I can't understand
why lockdep claims that polldev_mutex depends on cpu_add_remove_lock.

Oleg.

--

From: Ingo Molnar
Date: Tuesday, November 11, 2008 - 4:07 am

i suspect it's an older version of tip/master that still had async 

ok, will re-report if i can trigger it again with latest kernels. 
Rafael, please close this bug as cannot-reproduce for now.

	Ingo
--

From: Rafael J. Wysocki
Date: Tuesday, November 11, 2008 - 6:47 am

Done.

Thanks,
Rafael
--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11543
Subject		: kernel panic: softlockup in tick_periodic() ???
Submitter	: Joshua Hoblitt <j_kernel@hoblitt.com>
Date		: 2008-09-11 16:46 (60 days old)
References	: http://marc.info/?l=linux-kernel&m=122117786124326&w=4
Handled-By	: Thomas Gleixner <tglx@linutronix.de>
		  Cyrill Gorcunov <gorcunov@gmail.com>
		  Ingo Molnar <mingo@elte.hu>
		  Cyrill Gorcunov <gorcunov@gmail.com>


--

From: Cyrill Gorcunov
Date: Monday, November 10, 2008 - 9:18 am

[Rafael J. Wysocki - Sun, Nov 09, 2008 at 08:43:19PM +0100]
| This message has been generated automatically as a part of a report
| of regressions introduced between 2.6.26 and 2.6.27.
| 
| The following bug entry is on the current list of known regressions
| introduced between 2.6.26 and 2.6.27.  Please verify if it still should
| be listed and let me know (either way).
| 
| 
| Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11543
| Subject		: kernel panic: softlockup in tick_periodic() ???
| Submitter	: Joshua Hoblitt <j_kernel@hoblitt.com>
| Date		: 2008-09-11 16:46 (60 days old)
| References	: http://marc.info/?l=linux-kernel&m=122117786124326&w=4
| Handled-By	: Thomas Gleixner <tglx@linutronix.de>
| 		  Cyrill Gorcunov <gorcunov@gmail.com>
| 		  Ingo Molnar <mingo@elte.hu>
| 		  Cyrill Gorcunov <gorcunov@gmail.com>
| 
| 

Waiting for info from Joshua

		- Cyrill -
--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11505
Subject		: oltp ~10% regression with 2.6.27-rc5 on stoakley machine
Submitter	: Lin Ming <ming.m.lin@intel.com>
Date		: 2008-09-04 7:06 (67 days old)
References	: http://marc.info/?l=linux-kernel&m=122051202202373&w=4
		  http://marc.info/?t=122089704700005&r=1&w=4
Handled-By	: Peter Zijlstra <a.p.zijlstra@chello.nl>
		  Gregory Haskins <ghaskins@novell.com>
		  Ingo Molnar <mingo@elte.hu>
Patch		: http://marc.info/?l=linux-kernel&m=122194673932703&w=4


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11664
Subject		: acpi errors and random freeze on sony vaio sr
Submitter	: Giovanni Pellerano <giovanni.pellerano@gmail.com>
Date		: 2008-09-28 03:48 (43 days old)
Patch		:  <<a href="http://marc.info/?l=linux-acpi&m=122514341319748&w=4


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11698
Subject		: 2.6.27-rc7, freezes with > 1 s2ram cycle
Submitter	: Soeren Sonnenburg <kernel@nn7.de>
Date		: 2008-09-29 11:29 (42 days old)
References	: http://marc.info/?l=linux-kernel&m=122268780926859&w=4
Handled-By	: Rafael J. Wysocki <rjw@sisk.pl>


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11795
Subject		: ks959-sir dongle no longer works under 2.6.27 (REGRESSION)
Submitter	: Alex Villacis Lasso <avillaci@ceibo.fiec.espol.edu.ec>
Date		: 2008-10-20 10:49 (21 days old)
Handled-By	: Samuel Ortiz <samuel@sortiz.org>


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11805
Subject		: mounting XFS produces a segfault
Submitter	: Tiago Maluta <maluta_tiago@yahoo.com.br>
Date		: 2008-10-21 18:00 (20 days old)
Handled-By	: Dave Chinner <dgc@sgi.com>
Patch		: http://bugzilla.kernel.org/attachment.cgi?id=18397&action=view


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11820
Subject		: 2.6.27: 0 MHz CPU and wrong system time on AMD Geode system
Submitter	: Antipov Dmitry <dmantipov@yandex.ru>
Date		: 2008-10-15 6:39 (26 days old)
References	: http://marc.info/?l=linux-kernel&m=122405421010969&w=4
Handled-By	: Jordan Crouse <jordan.crouse@amd.com>


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11829
Subject		: Kernel 2.6.26.5 -> 2.6.27.2 [USB REGRESSION] (USB -> D_STATE)
Submitter	: Justin Piszcz <jpiszcz@lucidpixels.com>
Date		: 2008-10-19 11:26 (22 days old)
References	: http://marc.info/?l=linux-kernel&m=122441560120027&w=4
Handled-By	: Alan Stern <stern@rowland.harvard.edu>
		  Mike Isely <isely@isely.net>
Patch		: http://linuxtv.org/hg/~mcisely/pvrusb2/rev/0bb411d8d2e4


--

From: Greg KH
Date: Tuesday, November 11, 2008 - 12:13 am

This has been fixed already in .27 and in mainline with a patch from
Alan.

thanks,

greg k-h
--

From: Rafael J. Wysocki
Date: Tuesday, November 11, 2008 - 6:53 am

OK, closed it.

Do you remember which of the Alan's patches is that?

Rafael
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From: Mike Isely
Date: Tuesday, November 11, 2008 - 8:41 am

It wasn't a patch from Alan.  It was from me.  The commit ID is 
c82732a42896364296599b0f73f01c5e3fd781ae

  -Mike


-- 

Mike Isely
isely @ pobox (dot) com
PGP: 03 54 43 4D 75 E5 CC 92 71 16 01 E2 B5 F5 C1 E8
--

From: Rafael J. Wysocki
Date: Tuesday, November 11, 2008 - 9:38 am

OK, thanks.

I added the "Fixed by" information to the bug entry, for the record.

Rafael
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From: Alan Stern
Date: Tuesday, November 11, 2008 - 9:42 am

I wasn't one of mine.  The patch was written by Mike Isely: commit 
c82732a42896364296599b0f73f01c5e3fd781ae.

Alan Stern

--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11836
Subject		: Scheduler on C2D CPU and latest 2.6.27 kernel
Submitter	: Zdenek Kabelac <zdenek.kabelac@gmail.com>
Date		: 2008-10-21 9:59 (20 days old)
References	: http://marc.info/?l=linux-kernel&m=122458320502371&w=4
Handled-By	: Chris Snook <csnook@redhat.com>


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11830
Subject		: disk statistics issue in 2.6.27
Submitter	: Miquel van Smoorenburg <mikevs@xs4all.net>
Date		: 2008-10-19 11:31 (22 days old)
First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=427e59f09f...
References	: http://marc.info/?l=linux-kernel&m=122441671421326&w=4
Handled-By	: Jens Axboe <jens.axboe@oracle.com>


--

From: Miquel van Smoorenburg
Date: Sunday, November 9, 2008 - 4:49 pm

The cause has been found - a bug in the dpt_i2o driver that was hidden
until 2.6.27.

I've submitted a patch for 2.6.28 which will be included in the next
-rc, at which point I will submit it for 2.6.27-stable as well.

Thanks

Mike.

--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 5:05 pm

Thanks for the info.

Can you please put a pointer to the patch into the Bugzilla entry?

Rafael
--

From: James Bottomley
Date: Sunday, November 9, 2008 - 5:13 pm

Actually, that's not quite the way it works anymore.  As long as the
patch is similar for both trees, the way it's done now is to tag stable
patches with cc: Stable Tree <stable@kernel.org> so they have automatic
notifies to the stable tree.

I'm assuming this patch should be so tagged?

James


--

From: Miquel van Smoorenburg
Date: Sunday, November 9, 2008 - 5:19 pm

Yes, thank you.

Mike.

--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11843
Subject		: usb hdd problems with 2.6.27.2
Submitter	: Luciano Rocha <luciano@eurotux.com>
Date		: 2008-10-22 16:22 (19 days old)
References	: http://marc.info/?l=linux-kernel&m=122469318102679&w=4


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11876
Subject		: RCU hang on cpu re-hotplug with 2.6.27rc8
Submitter	: Andi Kleen <andi@firstfloor.org>
Date		: 2008-10-06 23:28 (35 days old)
References	: http://marc.info/?l=linux-kernel&m=122333610602399&w=2
Handled-By	: Paul E. McKenney <paulmck@linux.vnet.ibm.com>


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11865
Subject		: WOL for E100 Doesn't Work Anymore
Submitter	: roger <rogerx@sdf.lonestar.org>
Date		: 2008-10-26 21:56 (15 days old)
Handled-By	: Rafael J. Wysocki <rjw@sisk.pl>
Patch		: http://bugzilla.kernel.org/attachment.cgi?id=18646&action=view


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11892
Subject		: Battery information and status disappearing and wrong thermal status.
Submitter	: Mark <makalsky@gmail.com>
Date		: 2008-10-29 15:33 (12 days old)
Handled-By	: Alexey Starikovskiy <astarikovskiy@suse.de>


--

From: Rafael J. Wysocki
Date: Sunday, November 9, 2008 - 12:43 pm

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.26 and 2.6.27.

The following bug entry is on the current list of known regressions
introduced between 2.6.26 and 2.6.27.  Please verify if it still should
be listed and let me know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11983
Subject		: iwlagn: wrong command queue 31, command id 0x0
Submitter	: Matt Mackall <mpm@selenic.com>
Date		: 2008-11-06 4:16 (4 days old)
References	: http://marc.info/?l=linux-kernel&m=122598672815803&w=4
		  http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1703
Handled-By	: reinette chatre <reinette.chatre@intel.com>


--

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