This message contains a list of some regressions from 2.6.26, 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 2.6.26, 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
----------------------------------------
2008-10-04 181 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=11700
Subject : ACPI instabilities and IRQs being disabled
Submitter : Shawn Starr <[email protected]>
Date : 2008-09-27 22:40 (8 days old)
References : http://marc.info/?l=linux-kernel&m=122255527412178&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11699
Subject : 2.6.27-rc-7: BUG: scheduling while atomic, c1e_idle+0x98/0xe0
Submitter : Prakash Punnoor <[email protected]>
Date : 2008-09-28 17:45 (7 days old)
References : http://marc.info/?l=linux-kernel&m=122262403415629&w=4
Handled-By : Thomas Gleixner <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11698
Subject : 2.6.27-rc7, freezes with > 1 s2ram cycle
Submitter : Soeren Sonnenburg <[email protected]>
Date : 2008-09-29 11:29 (6 days old)
References : http://marc.info/?l=linux-kernel&m=122268780926859&w=4
Handled-By : Rafael J. Wysocki <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11697
Subject : CD tray closes spontaneously after opening it
Submitter : Frans Pop <[email protected]>
Date : 2008-09-30 10:47 (5 days old)
References : http://marc.info/?l=linux-kernel&m=122277167125264&w=4
Handled-By : Kay Sievers <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11695
Subject : USB disconnects every 30 seconds
Submitter : Dave Hansen <[email protected]>
Date : 2008-10-03 17:45 (2 days old)
References : http://marc.info/?l=linux-kernel&m=122305738430115&w=4
Handled-By : Alan Stern <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11676
Subject : 2.6.27-rc2 to rc8, apgart fails, iommu=soft works, regression
Submitter : Duncan <[email protected]>
Date : 2008-09-30 10:24 (5 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11664
Subject : acpi errors and random freeze on sony vaio sr
Submitter : Giovanni Pellerano <[email protected]>
Date : 2008-09-28 03:48 (7 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11643
Subject : ALSA sound/core/pcm_native.c:1947: BUG? (err >= 0)
Submitter : sangu <[email protected]>
Date : 2008-09-24 16:51 (11 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11634
Subject : Sometime my laptop is dead on resume from ram
Submitter : Romano Giannetti <[email protected]>
Date : 2008-09-24 01:12 (11 days old)
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 <[email protected]>
Date : 2008-09-16 23:00 (19 days old)
References : http://marc.info/?l=linux-kernel&m=122160611517267&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11607
Subject : 2.6.27-rc6 Bug in tty_chars_in_buffer
Submitter : John Daiker <[email protected]>
Date : 2008-09-15 2:26 (20 days old)
References : http://marc.info/?l=linux-kernel&m=122144565514490&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11569
Subject : Don't complain about disabled irqs when the system has paniced
Submitter : Andi Kleen <[email protected]>
Date : 2008-09-02 13:49 (33 days old)
References : http://marc.info/?l=linux-kernel&m=122036356127282&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11568
Subject : spontaneous reboot on resume with 2.6.27
Submitter : Andy Wettstein <[email protected]>
Date : 2008-09-14 20:00 (21 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11543
Subject : kernel panic: softlockup in tick_periodic() ???
Submitter : Joshua Hoblitt <[email protected]>
Date : 2008-09-11 16:46 (24 days old)
References : http://marc.info/?l=linux-kernel&m=122117786124326&w=4
Handled-By : Thomas Gleixner <[email protected]>
Cyrill Gorcunov <[email protected]>
Ingo Molnar <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11516
Subject : severe performance degradation on x86_64 going from 2.6.26-rc9 -> 2.6.27-rc5
Submitter : Jason Vas Dias <[email protected]>
Date : 2008-09-07 13:59 (28 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11512
Subject : sort-of regression due to "kconfig: speed up all*config + randconfig"
Submitter : Alexey Dobriyan <[email protected]>
Date : 2008-09-05 22:50 (30 days old)
References : http://marc.info/?l=linux-kernel&m=122065498013858&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11504
Subject : reiserfs BUG in 2.6.27-rc5
Submitter : Randy Dunlap <[email protected]>
Date : 2008-09-03 16:35 (32 days old)
References : http://marc.info/?l=linux-kernel&m=122045982120138&w=4
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 <[email protected]>
Date : 2008-09-01 13:33 (34 days old)
References : http://marc.info/?l=linux-kernel&m=122028529415108&w=4
Handled-By : Zhu Yi <[email protected]>
Dan Williams <[email protected]>
Jouni Malinen <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11407
Subject : suspend: unable to handle kernel paging request
Submitter : Vegard Nossum <[email protected]>
Date : 2008-08-21 17:28 (45 days old)
References : http://marc.info/?l=linux-kernel&m=121933974928881&w=4
Handled-By : Rafael J. Wysocki <[email protected]>
Pekka Enberg <[email protected]>
Pavel Machek <[email protected]>
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 <[email protected]>
Date : 2008-08-21 5:52 (45 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) <[email protected]>
James Bottomley <[email protected]>
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 <[email protected]>
Date : 2008-08-20 6:44 (46 days old)
References : http://marc.info/?l=linux-kernel&m=121921480931970&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11340
Subject : LTP overnight run resulted in unusable box
Submitter : Alexey Dobriyan <[email protected]>
Date : 2008-08-13 9:24 (53 days old)
References : http://marc.info/?l=linux-kernel&m=121861951902949&w=4
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 <[email protected]>
Date : 2008-08-11 18:36 (55 days old)
References : http://marc.info/?l=linux-kernel&m=121847986119495&w=4
http://marc.info/?l=linux-kernel&m=122125737421332&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11272
Subject : BUG: parport_serial in 2.6.27-rc1 for NetMos Technology PCI 9835
Submitter : Jaswinder Singh <[email protected]>
Date : 2008-08-05 15:12 (61 days old)
References : http://marc.info/?l=linux-kernel&m=121794900319776&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11271
Subject : BUG: fealnx in 2.6.27-rc1
Submitter : Jaswinder Singh <[email protected]>
Date : 2008-08-05 14:58 (61 days old)
References : http://marc.info/?l=linux-netdev&m=121794762016830&w=4
http://lkml.org/lkml/2008/8/10/98
Handled-By : Francois Romieu <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11264
Subject : Invalid op opcode in kernel/workqueue
Submitter : Jean-Luc Coulon <[email protected]>
Date : 2008-08-07 04:18 (59 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11230
Subject : Kconfig no longer outputs a .config with freshly updated defconfigs
Submitter : Josh Boyer <[email protected]>
Date : 2008-08-02 16:03 (64 days old)
References : http://marc.info/?l=linux-kernel&m=121769306319391&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11224
Subject : Only three cores found on quad-core machine.
Submitter : Dave Jones <[email protected]>
Date : 2008-08-01 18:15 (65 days old)
References : http://marc.info/?l=linux-kernel&m=121761475224719&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11220
Subject : Screen stays black after resume
Submitter : Nico Schottelius <[email protected]>
Date : 2008-07-31 21:05 (66 days old)
References : http://marc.info/?l=linux-kernel&m=121753882422899&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11215
Subject : INFO: possible recursive locking detected ps2_command
Submitter : Zdenek Kabelac <[email protected]>
Date : 2008-07-31 9:41 (66 days old)
References : http://marc.info/?l=linux-kernel&m=121749737011637&w=4
Handled-By : Peter Zijlstra <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11210
Subject : libata badness
Submitter : Kumar Gala <[email protected]>
Date : 2008-07-31 18:53 (66 days old)
References : http://marc.info/?l=linux-ide&m=121753059307310&w=4
Handled-By : Kumar Gala <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11209
Subject : 2.6.27-rc1 process time accounting
Submitter : Lukas Hejtmanek <[email protected]>
Date : 2008-07-31 10:43 (66 days old)
References : http://marc.info/?l=linux-kernel&m=121750102917490&w=4
http://lkml.org/lkml/2008/9/30/199
Handled-By : Peter Zijlstra <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11207
Subject : VolanoMark regression with 2.6.27-rc1
Submitter : Zhang, Yanmin <[email protected]>
Date : 2008-07-31 3:20 (66 days old)
References : http://marc.info/?l=linux-kernel&m=121747464114335&w=4
Handled-By : Zhang, Yanmin <[email protected]>
Peter Zijlstra <[email protected]>
Dhaval Giani <[email protected]>
Miao Xie <[email protected]>
Regressions with patches
------------------------
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11701
Subject : sky2 wol regression
Submitter : Tino Keitel <[email protected]>
Date : 2008-09-24 8:05 (11 days old)
References : http://marc.info/?l=linux-kernel&m=122224359222164&w=4
Handled-By : Rafael J. Wysocki <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122298334522551&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11696
Subject : 2.6.27-rc8 doubled times
Submitter : Hugh Dickins <[email protected]>
Date : 2008-10-03 10:21 (2 days old)
References : http://marc.info/?l=linux-kernel&m=122302939313636&w=4
Handled-By : Thomas Gleixner <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122307260621434&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11629
Subject : quad G5 fails to shut down
Submitter : Johannes Berg <[email protected]>
Date : 2008-09-23 14:20 (12 days old)
Handled-By : Johannes Berg <[email protected]>
Patch : http://bugzilla.kernel.org/show_bug.cgi?id=11629#c8
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11615
Subject : sata_nv EH problems
Submitter : Pär Andersson <[email protected]>
Date : 2008-09-21 18:09 (14 days old)
Handled-By : Tejun Heo <[email protected]>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=18078&action=view
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11550
Subject : pnp: Huge number of "io resource overlap" messages
Submitter : Frans Pop <[email protected]>
Date : 2008-09-09 10:50 (26 days old)
References : http://marc.info/?l=linux-kernel&m=122095745403793&w=4
Handled-By : Rene Herman <[email protected]>
Bjorn Helgaas <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122246533505643&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11549
Subject : 2.6.27-rc5 acpi: EC Storm error message on bootup
Submitter : <[email protected]>
Date : 2008-09-02 21:27 (33 days old)
References : http://marc.info/?l=linux-kernel&m=122039255517586&w=4
Handled-By : Alexey Starikovskiy <[email protected]>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=18047&action=view
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 <[email protected]>
Date : 2008-09-04 7:06 (31 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 <[email protected]>
Gregory Haskins <[email protected]>
Ingo Molnar <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122194673932703&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11442
Subject : btusb hibernation/suspend breakage in current -git
Submitter : Rafael J. Wysocki <[email protected]>
Date : 2008-08-25 11:37 (41 days old)
References : http://marc.info/?l=linux-bluetooth&m=121966402012074&w=4
Handled-By : Oliver Neukum <[email protected]>
Patch : http://marc.info/?l=linux-bluetooth&m=121967226027323&w=4
http://bugzilla.kernel.org/show_bug.cgi?id=11442#c1
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 2.6.26,
unresolved as well as resolved, at:
http://bugzilla.kernel.org/show_bug.cgi?id=11167
Please let me know if there are any Bugzilla entries that should be added to
the list in there.
Thanks,
Rafael
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 2.6.26. 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 <[email protected]>
Date : 2008-07-31 3:20 (66 days old)
References : http://marc.info/?l=linux-kernel&m=121747464114335&w=4
Handled-By : Zhang, Yanmin <[email protected]>
Peter Zijlstra <[email protected]>
Dhaval Giani <[email protected]>
Miao Xie <[email protected]>
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 2.6.26. 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 <[email protected]>
Date : 2008-07-31 10:43 (66 days old)
References : http://marc.info/?l=linux-kernel&m=121750102917490&w=4
http://lkml.org/lkml/2008/9/30/199
Handled-By : Peter Zijlstra <[email protected]>
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 2.6.26. Please verify if it still should be listed and let me know
(either way).
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11210
Subject : libata badness
Submitter : Kumar Gala <[email protected]>
Date : 2008-07-31 18:53 (66 days old)
References : http://marc.info/?l=linux-ide&m=121753059307310&w=4
Handled-By : Kumar Gala <[email protected]>
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 2.6.26. 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 <[email protected]>
Date : 2008-07-31 9:41 (66 days old)
References : http://marc.info/?l=linux-kernel&m=121749737011637&w=4
Handled-By : Peter Zijlstra <[email protected]>
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 2.6.26. Please verify if it still should be listed and let me know
(either way).
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11220
Subject : Screen stays black after resume
Submitter : Nico Schottelius <[email protected]>
Date : 2008-07-31 21:05 (66 days old)
References : http://marc.info/?l=linux-kernel&m=121753882422899&w=4
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 2.6.26. Please verify if it still should be listed and let me know
(either way).
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11224
Subject : Only three cores found on quad-core machine.
Submitter : Dave Jones <[email protected]>
Date : 2008-08-01 18:15 (65 days old)
References : http://marc.info/?l=linux-kernel&m=121761475224719&w=4
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 2.6.26. Please verify if it still should be listed and let me know
(either way).
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11271
Subject : BUG: fealnx in 2.6.27-rc1
Submitter : Jaswinder Singh <[email protected]>
Date : 2008-08-05 14:58 (61 days old)
References : http://marc.info/?l=linux-netdev&m=121794762016830&w=4
http://lkml.org/lkml/2008/8/10/98
Handled-By : Francois Romieu <[email protected]>
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 2.6.26. Please verify if it still should be listed and let me know
(either way).
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11272
Subject : BUG: parport_serial in 2.6.27-rc1 for NetMos Technology PCI 9835
Submitter : Jaswinder Singh <[email protected]>
Date : 2008-08-05 15:12 (61 days old)
References : http://marc.info/?l=linux-kernel&m=121794900319776&w=4
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 2.6.26. 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 <[email protected]>
Date : 2008-08-07 04:18 (59 days old)
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 2.6.26. Please verify if it still should be listed and let me know
(either way).
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11230
Subject : Kconfig no longer outputs a .config with freshly updated defconfigs
Submitter : Josh Boyer <[email protected]>
Date : 2008-08-02 16:03 (64 days old)
References : http://marc.info/?l=linux-kernel&m=121769306319391&w=4
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 2.6.26. 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 <[email protected]>
Date : 2008-08-11 18:36 (55 days old)
References : http://marc.info/?l=linux-kernel&m=121847986119495&w=4
http://marc.info/?l=linux-kernel&m=122125737421332&w=4
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 2.6.26. 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 <[email protected]>
Date : 2008-08-21 17:28 (45 days old)
References : http://marc.info/?l=linux-kernel&m=121933974928881&w=4
Handled-By : Rafael J. Wysocki <[email protected]>
Pekka Enberg <[email protected]>
Pavel Machek <[email protected]>
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 2.6.26. 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 <[email protected]>
Date : 2008-08-13 9:24 (53 days old)
References : http://marc.info/?l=linux-kernel&m=121861951902949&w=4
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 2.6.26. Please verify if it still should be listed and let me know
(either way).
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11442
Subject : btusb hibernation/suspend breakage in current -git
Submitter : Rafael J. Wysocki <[email protected]>
Date : 2008-08-25 11:37 (41 days old)
References : http://marc.info/?l=linux-bluetooth&m=121966402012074&w=4
Handled-By : Oliver Neukum <[email protected]>
Patch : http://marc.info/?l=linux-bluetooth&m=121967226027323&w=4
http://bugzilla.kernel.org/show_bug.cgi?id=11442#c1
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 2.6.26. 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 <[email protected]>
Date : 2008-08-20 6:44 (46 days old)
References : http://marc.info/?l=linux-kernel&m=121921480931970&w=4
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 2.6.26. 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 <[email protected]>
Date : 2008-08-21 5:52 (45 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) <[email protected]>
James Bottomley <[email protected]>
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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 <[email protected]>
Date : 2008-09-01 13:33 (34 days old)
References : http://marc.info/?l=linux-kernel&m=122028529415108&w=4
Handled-By : Zhu Yi <[email protected]>
Dan Williams <[email protected]>
Jouni Malinen <[email protected]>
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11516
Subject : severe performance degradation on x86_64 going from 2.6.26-rc9 -> 2.6.27-rc5
Submitter : Jason Vas Dias <[email protected]>
Date : 2008-09-07 13:59 (28 days old)
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11512
Subject : sort-of regression due to "kconfig: speed up all*config + randconfig"
Submitter : Alexey Dobriyan <[email protected]>
Date : 2008-09-05 22:50 (30 days old)
References : http://marc.info/?l=linux-kernel&m=122065498013858&w=4
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11543
Subject : kernel panic: softlockup in tick_periodic() ???
Submitter : Joshua Hoblitt <[email protected]>
Date : 2008-09-11 16:46 (24 days old)
References : http://marc.info/?l=linux-kernel&m=122117786124326&w=4
Handled-By : Thomas Gleixner <[email protected]>
Cyrill Gorcunov <[email protected]>
Ingo Molnar <[email protected]>
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11568
Subject : spontaneous reboot on resume with 2.6.27
Submitter : Andy Wettstein <[email protected]>
Date : 2008-09-14 20:00 (21 days old)
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11569
Subject : Don't complain about disabled irqs when the system has paniced
Submitter : Andi Kleen <[email protected]>
Date : 2008-09-02 13:49 (33 days old)
References : http://marc.info/?l=linux-kernel&m=122036356127282&w=4
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11549
Subject : 2.6.27-rc5 acpi: EC Storm error message on bootup
Submitter : <[email protected]>
Date : 2008-09-02 21:27 (33 days old)
References : http://marc.info/?l=linux-kernel&m=122039255517586&w=4
Handled-By : Alexey Starikovskiy <[email protected]>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=18047&action=view
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11550
Subject : pnp: Huge number of "io resource overlap" messages
Submitter : Frans Pop <[email protected]>
Date : 2008-09-09 10:50 (26 days old)
References : http://marc.info/?l=linux-kernel&m=122095745403793&w=4
Handled-By : Rene Herman <[email protected]>
Bjorn Helgaas <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122246533505643&w=4
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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 <[email protected]>
Date : 2008-09-04 7:06 (31 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 <[email protected]>
Gregory Haskins <[email protected]>
Ingo Molnar <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122194673932703&w=4
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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 <[email protected]>
Date : 2008-09-16 23:00 (19 days old)
References : http://marc.info/?l=linux-kernel&m=122160611517267&w=4
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11615
Subject : sata_nv EH problems
Submitter : Pär Andersson <[email protected]>
Date : 2008-09-21 18:09 (14 days old)
Handled-By : Tejun Heo <[email protected]>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=18078&action=view
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11643
Subject : ALSA sound/core/pcm_native.c:1947: BUG? (err >= 0)
Submitter : sangu <[email protected]>
Date : 2008-09-24 16:51 (11 days old)
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11634
Subject : Sometime my laptop is dead on resume from ram
Submitter : Romano Giannetti <[email protected]>
Date : 2008-09-24 01:12 (11 days old)
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11629
Subject : quad G5 fails to shut down
Submitter : Johannes Berg <[email protected]>
Date : 2008-09-23 14:20 (12 days old)
Handled-By : Johannes Berg <[email protected]>
Patch : http://bugzilla.kernel.org/show_bug.cgi?id=11629#c8
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11676
Subject : 2.6.27-rc2 to rc8, apgart fails, iommu=soft works, regression
Submitter : Duncan <[email protected]>
Date : 2008-09-30 10:24 (5 days old)
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11696
Subject : 2.6.27-rc8 doubled times
Submitter : Hugh Dickins <[email protected]>
Date : 2008-10-03 10:21 (2 days old)
References : http://marc.info/?l=linux-kernel&m=122302939313636&w=4
Handled-By : Thomas Gleixner <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122307260621434&w=4
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11664
Subject : acpi errors and random freeze on sony vaio sr
Submitter : Giovanni Pellerano <[email protected]>
Date : 2008-09-28 03:48 (7 days old)
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11695
Subject : USB disconnects every 30 seconds
Submitter : Dave Hansen <[email protected]>
Date : 2008-10-03 17:45 (2 days old)
References : http://marc.info/?l=linux-kernel&m=122305738430115&w=4
Handled-By : Alan Stern <[email protected]>
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11698
Subject : 2.6.27-rc7, freezes with > 1 s2ram cycle
Submitter : Soeren Sonnenburg <[email protected]>
Date : 2008-09-29 11:29 (6 days old)
References : http://marc.info/?l=linux-kernel&m=122268780926859&w=4
Handled-By : Rafael J. Wysocki <[email protected]>
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11697
Subject : CD tray closes spontaneously after opening it
Submitter : Frans Pop <[email protected]>
Date : 2008-09-30 10:47 (5 days old)
References : http://marc.info/?l=linux-kernel&m=122277167125264&w=4
Handled-By : Kay Sievers <[email protected]>
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11700
Subject : ACPI instabilities and IRQs being disabled
Submitter : Shawn Starr <[email protected]>
Date : 2008-09-27 22:40 (8 days old)
References : http://marc.info/?l=linux-kernel&m=122255527412178&w=4
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11701
Subject : sky2 wol regression
Submitter : Tino Keitel <[email protected]>
Date : 2008-09-24 8:05 (11 days old)
References : http://marc.info/?l=linux-kernel&m=122224359222164&w=4
Handled-By : Rafael J. Wysocki <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=122298334522551&w=4
This message has been generated automatically as a part of a report
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11699
Subject : 2.6.27-rc-7: BUG: scheduling while atomic, c1e_idle+0x98/0xe0
Submitter : Prakash Punnoor <[email protected]>
Date : 2008-09-28 17:45 (7 days old)
References : http://marc.info/?l=linux-kernel&m=122262403415629&w=4
Handled-By : Thomas Gleixner <[email protected]>
[Rafael J. Wysocki - Sat, Oct 04, 2008 at 07:32:52PM +0200]
| 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 2.6.26. 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 <[email protected]>
| Date : 2008-09-11 16:46 (24 days old)
| References : http://marc.info/?l=linux-kernel&m=122117786124326&w=4
| Handled-By : Thomas Gleixner <[email protected]>
| Cyrill Gorcunov <[email protected]>
| Ingo Molnar <[email protected]>
|
|
Joshua is testing -rc8 now. He said (in bugzilla entry):
>
> -rc8 proved itself stable for a few days on two test nodes and it's being
> rolled out onto 32 nodes production nodes as I type this. The bug strikes
> somewhat randomly so it'll take time for it to pop up in -rc8 if it's still
> there. Heavy jobs will be running over the weekend and should trip this
> issues if it's still in there...
>
So we're waiting for his verdict.
- Cyrill -
Rafael J. Wysocki skrev:
> 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 2.6.26. Please verify if it still should be listed and let me know
> (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11615
> Subject : sata_nv EH problems
> Submitter : Pär Andersson <[email protected]>
> Date : 2008-09-21 18:09 (14 days old)
> Handled-By : Tejun Heo <[email protected]>
> Patch : http://bugzilla.kernel.org/attachment.cgi?id=18078&action=view
>
>
Merged in:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4c1eb90a0908c0c60db2169dce08fb672e7582f1
--
Thomas
Hi Rafael,
> 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 2.6.26. Please verify if it still should be listed and let me know
> (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11442
> Subject : btusb hibernation/suspend breakage in current -git
> Submitter : Rafael J. Wysocki <[email protected]>
> Date : 2008-08-25 11:37 (41 days old)
> References : http://marc.info/?l=linux-bluetooth&m=121966402012074&w=4
> Handled-By : Oliver Neukum <[email protected]>
> Patch : http://marc.info/?l=linux-bluetooth&m=121967226027323&w=4
> http://bugzilla.kernel.org/show_bug.cgi?id=11442#c1
the patch is not the actual fix for it. It is just a band aid. As you
confirmed, the double free patch fixes it. See my pull request, but it
didn't make it into Linus' tree yet.
Regards
Marcel
Please pull from
git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6.git master
This will update the following files:
drivers/bluetooth/bpa10x.c | 2 --
drivers/bluetooth/btusb.c | 7 ++++---
2 files changed, 4 insertions(+), 5 deletions(-)
through these ChangeSets:
Marcel Holtmann (2):
[Bluetooth] Fix double frees on error paths of btusb and bpa10x drivers
[Bluetooth] Add reset quirk for new Targus and Belkin dongles
On Saturday, 4 of October 2008, Marcel Holtmann wrote:
> Hi Rafael,
>
> > 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 2.6.26. Please verify if it still should be listed and let me know
> > (either way).
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11442
> > Subject : btusb hibernation/suspend breakage in current -git
> > Submitter : Rafael J. Wysocki <[email protected]>
> > Date : 2008-08-25 11:37 (41 days old)
> > References : http://marc.info/?l=linux-bluetooth&m=121966402012074&w=4
> > Handled-By : Oliver Neukum <[email protected]>
> > Patch : http://marc.info/?l=linux-bluetooth&m=121967226027323&w=4
> > http://bugzilla.kernel.org/show_bug.cgi?id=11442#c1
>
> the patch is not the actual fix for it. It is just a band aid. As you
> confirmed, the double free patch fixes it. See my pull request, but it
> didn't make it into Linus' tree yet.
I know, I didn't close this entry just because the fix is not yet in the Linus'
tree.
Thanks,
Rafael
> Please pull from
>
> git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6.git master
>
> This will update the following files:
>
> drivers/bluetooth/bpa10x.c | 2 --
> drivers/bluetooth/btusb.c | 7 ++++---
> 2 files changed, 4 insertions(+), 5 deletions(-)
>
> through these ChangeSets:
>
> Marcel Holtmann (2):
> [Bluetooth] Fix double frees on error paths of btusb and bpa10x drivers
> [Bluetooth] Add reset quirk for new Targus and Belkin dongles
On Saturday, 4 of October 2008, Thomas Backlund wrote:
> Rafael J. Wysocki skrev:
> > 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 2.6.26. Please verify if it still should be listed and let me know
> > (either way).
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11615
> > Subject : sata_nv EH problems
> > Submitter : Pär Andersson <[email protected]>
> > Date : 2008-09-21 18:09 (14 days old)
> > Handled-By : Tejun Heo <[email protected]>
> > Patch : http://bugzilla.kernel.org/attachment.cgi?id=18078&action=view
> >
> >
>
> Merged in:
> http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4c1eb90a0908c0c60db2169dce08fb672e7582f1
Thanks, closed.
Rafael
Rafael J. Wysocki skrev:
> 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 2.6.26. Please verify if it still should be listed and let me know
> (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11629
> Subject : quad G5 fails to shut down
> Submitter : Johannes Berg <[email protected]>
> Date : 2008-09-23 14:20 (12 days old)
> Handled-By : Johannes Berg <[email protected]>
> Patch : http://bugzilla.kernel.org/show_bug.cgi?id=11629#c8
>
>
Merged in:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=61e9916eba35dfb76d38013a5aae9a59cc50877a
--
Thomas
On Saturday, 4 of October 2008, Thomas Backlund wrote:
> Rafael J. Wysocki skrev:
> > 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 2.6.26. Please verify if it still should be listed and let me know
> > (either way).
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11629
> > Subject : quad G5 fails to shut down
> > Submitter : Johannes Berg <[email protected]>
> > Date : 2008-09-23 14:20 (12 days old)
> > Handled-By : Johannes Berg <[email protected]>
> > Patch : http://bugzilla.kernel.org/show_bug.cgi?id=11629#c8
> >
> >
>
> Merged in:
> http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=61e9916eba35dfb76d38013a5aae9a59cc50877a
Thanks, closed.
Rafael
On Sat, 4 Oct 2008, Rafael J. Wysocki wrote:
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11696
> Subject : 2.6.27-rc8 doubled times
> Submitter : Hugh Dickins <[email protected]>
> Date : 2008-10-03 10:21 (2 days old)
> References : http://marc.info/?l=linux-kernel&m=122302939313636&w=4
> Handled-By : Thomas Gleixner <[email protected]>
> Patch : http://marc.info/?l=linux-kernel&m=122307260621434&w=4
Can now be closed, thanks Rafael: Linus has taken Thomas's
commit 07454bfff151d2465ada809bbaddf3548cc1097c
clockevents: check broadcast tick device not the clock events device
and I've just confirmed that the latest git indeed fixes the issue.
Hugh
Hi.
On Sat, Oct 04, 2008 at 07:28:42PM +0200, Rafael J. Wysocki ([email protected]) wrote:
> 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 <[email protected]>
> Date : 2008-08-11 18:36 (55 days old)
> References : http://marc.info/?l=linux-kernel&m=121847986119495&w=4
> http://marc.info/?l=linux-kernel&m=122125737421332&w=4
Just for the reference, this one regresses from the 2.6.23. Particular
2.6.26-27 part can be partially fixed by disabling TSO/GSO, since tbench
workload issues quite small packets, and system has no time to
incorporate them into particulary big TSO/GSO frame to get advantage of
this technology. The most noticeble perfromance drop was between 23 and
24 kernels. I work on this issue.
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11207
> Subject : VolanoMark regression with 2.6.27-rc1
> Submitter : Zhang, Yanmin <[email protected]>
> Date : 2008-07-31 3:20 (66 days old)
> References : http://marc.info/?l=linux-kernel&m=121747464114335&w=4
> Handled-By : Zhang, Yanmin <[email protected]>
> Peter Zijlstra <[email protected]>
> Dhaval Giani <[email protected]>
> Miao Xie <[email protected]>
This one is different, but any other benchmark related to network over
loopback (and in some case over other media) performance degradation
should be very likely handled by the above case.
--
Evgeniy Polyakov
At Sat, 4 Oct 2008 19:32:55 +0200 (CEST),
Rafael J. Wysocki wrote:
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11643
> Subject : ALSA sound/core/pcm_native.c:1947: BUG? (err >= 0)
> Submitter : sangu <[email protected]>
> Date : 2008-09-24 16:51 (11 days old)
This is unlikely a 2.6.27 regression.
It's a bug to be fixed, though.
Takashi
On Sunday, 5 of October 2008, Hugh Dickins wrote:
> On Sat, 4 Oct 2008, Rafael J. Wysocki wrote:
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11696
> > Subject : 2.6.27-rc8 doubled times
> > Submitter : Hugh Dickins <[email protected]>
> > Date : 2008-10-03 10:21 (2 days old)
> > References : http://marc.info/?l=linux-kernel&m=122302939313636&w=4
> > Handled-By : Thomas Gleixner <[email protected]>
> > Patch : http://marc.info/?l=linux-kernel&m=122307260621434&w=4
>
> Can now be closed, thanks Rafael: Linus has taken Thomas's
> commit 07454bfff151d2465ada809bbaddf3548cc1097c
> clockevents: check broadcast tick device not the clock events device
> and I've just confirmed that the latest git indeed fixes the issue.
Thanks, closed.
Rafael
On Sunday, 5 of October 2008, Evgeniy Polyakov wrote:
> Hi.
>
> On Sat, Oct 04, 2008 at 07:28:42PM +0200, Rafael J. Wysocki ([email protected]) wrote:
> > 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 <[email protected]>
> > Date : 2008-08-11 18:36 (55 days old)
> > References : http://marc.info/?l=linux-kernel&m=121847986119495&w=4
> > http://marc.info/?l=linux-kernel&m=122125737421332&w=4
>
> Just for the reference, this one regresses from the 2.6.23.
Still, tbench results from 2.6.26 are better than from 2.6.27-rc.
That's why it's still on the list, but if you think that's not relevant, please
let me know and I'll drop it.
Thanks,
Rafael
On Sunday, 5 of October 2008, Takashi Iwai wrote:
> At Sat, 4 Oct 2008 19:32:55 +0200 (CEST),
> Rafael J. Wysocki wrote:
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11643
> > Subject : ALSA sound/core/pcm_native.c:1947: BUG? (err >= 0)
> > Submitter : sangu <[email protected]>
> > Date : 2008-09-24 16:51 (11 days old)
>
> This is unlikely a 2.6.27 regression.
> It's a bug to be fixed, though.
Dropped from the list.
Thanks,
Rafael
Rafael J. Wysocki <[email protected]> wrote:
>> > 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 <[email protected]>
>> > Date : 2008-08-11 18:36 (55 days old)
>> > References : http://marc.info/?l=linux-kernel&m=121847986119495&w=4
>> > http://marc.info/?l=linux-kernel&m=122125737421332&w=4
>>
>> Just for the reference, this one regresses from the 2.6.23.
>
> Still, tbench results from 2.6.26 are better than from 2.6.27-rc.
> That's why it's still on the list, but if you think that's not relevant, please
> let me know and I'll drop it.
Note that 2.6.27 beats 2.6.26 by 30% with bulk traffic over
loopback as opposed to the small packets sent by tbench where
I saw a 5% drop in performance on my machine.
So I'm not sure whether this should really be classified as
a regression if we limit ourselves to the changes between 26
and 27.
The changes prior to 26 seem to be more significant.
Chyeers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
On Sun, Oct 05, 2008 at 01:02:20PM +0200, Rafael J. Wysocki ([email protected]) wrote:
> > Just for the reference, this one regresses from the 2.6.23.
>
> Still, tbench results from 2.6.26 are better than from 2.6.27-rc.
> That's why it's still on the list, but if you think that's not relevant, please
> let me know and I'll drop it.
I meant it continuously regresses from .23 including 26-27 timeframe.
There were at least two changes in 26-27 which caused tbench regression
in this particular time interval. One of them enabled TSO over loopback
by default, so one can turn it off via ethtools or this patch:
http://marc.info/?l=linux-netdev&m=122263663631600&w=2
another (hopefully) one I'm trying to find out, which is a bit complex
and slow, since e1000 driver changes in the middle of the 26-27
timeframe does not allow my testing machines to boot.
So, there is a regression (partially resolved), but it is only part of
the problem.
--
Evgeniy Polyakov
Hi.
On Sun, Oct 05, 2008 at 07:49:31PM +0800, Herbert Xu ([email protected]) wrote:
> Note that 2.6.27 beats 2.6.26 by 30% with bulk traffic over
> loopback as opposed to the small packets sent by tbench where
> I saw a 5% drop in performance on my machine.
>
> So I'm not sure whether this should really be classified as
> a regression if we limit ourselves to the changes between 26
> and 27.
>
> The changes prior to 26 seem to be more significant.
Yes, that's the point, TSO over loopback for big packets or workload
where there packets can be easily combined into big one results in a
fair performance improvement, but for small packets it regresses about
5-10 %. And yes, there are yet unresolved changes which caused bigger
performance degradation.
--
Evgeniy Polyakov
On Sat, Oct 04, 2008 at 07:32:54PM +0200, 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 2.6.26. 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 : Don't complain about disabled irqs when the system has paniced
> Submitter : Andi Kleen <[email protected]>
> Date : 2008-09-02 13:49 (33 days old)
> References : http://marc.info/?l=linux-kernel&m=122036356127282&w=4
The problem is actually worse than this description suggests. I updated
the bugzilla entry now.
The new smp_call_function() that is called from panic is quite unsuitable
for this task:
- It allocates memory (not a good idea in panic0
- It complains about interrupt off
- This whole thing breaks at least machine checks
-Andi
--
[email protected]
On Sunday 05 October 2008 04:28, 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 2.6.26. 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 <[email protected]>
> Date : 2008-07-31 3:20 (66 days old)
> References : http://marc.info/?l=linux-kernel&m=121747464114335&w=4
> Handled-By : Zhang, Yanmin <[email protected]>
> Peter Zijlstra <[email protected]>
> Dhaval Giani <[email protected]>
> Miao Xie <[email protected]>
Curious: what's happening with this one, handlers? Any progress being made?
On Sunday 05 October 2008 04:32, 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 2.6.26. Please verify if it still should be listed and let me know
> (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11224
> Subject : Only three cores found on quad-core machine.
> Submitter : Dave Jones <[email protected]>
> Date : 2008-08-01 18:15 (65 days old)
> References : http://marc.info/?l=linux-kernel&m=121761475224719&w=4
Dave, is your CPU2 getting stuck in calibrate_delay? Can you still
reproduce the bug? What if you boot the kernel with lpj=<something sane
like 2666785> in order to skip the calibrate_delay code?
If that helps, can you try adding some printks to narrow down where it
is getting stuck?
On Sunday 05 October 2008 04:32, 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 2.6.26. 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 <[email protected]>
> Date : 2008-08-07 04:18 (59 days old)
Any progress being made with this one? Dave, Oleg did some pretty
nice looking debugging work that indicates it might be a cpufreq
problem. Have you had a chance to look at the comments in the
bugzilla? Or have you been cc'ed on patches for this?
Thanks,
Nick
On Wed, Oct 08, 2008 at 02:18:18AM +1100, Nick Piggin wrote:
> On Sunday 05 October 2008 04:32, 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 2.6.26. Please verify if it still should be listed and let me know
> > (either way).
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11224
> > Subject : Only three cores found on quad-core machine.
> > Submitter : Dave Jones <[email protected]>
> > Date : 2008-08-01 18:15 (65 days old)
> > References : http://marc.info/?l=linux-kernel&m=121761475224719&w=4
>
> Dave, is your CPU2 getting stuck in calibrate_delay? Can you still
> reproduce the bug? What if you boot the kernel with lpj=<something sane
> like 2666785> in order to skip the calibrate_delay code?
>
> If that helps, can you try adding some printks to narrow down where it
> is getting stuck?
This is going to sound strange, but I've forgotten which box that was.
I'm due to reinstall all my test boxes now that the next Fedora beta
has come out anyway, so I'll hopefully figure out by the end of the week :)
Dave
--
http://www.codemonkey.org.uk
On Monday 06 October 2008 17:02, Andi Kleen wrote:
> On Sat, Oct 04, 2008 at 07:32:54PM +0200, 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 2.6.26. 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 : Don't complain about disabled irqs when the system has paniced
> > Submitter : Andi Kleen <[email protected]>
> > Date : 2008-09-02 13:49 (33 days old)
> > References : http://marc.info/?l=linux-kernel&m=122036356127282&w=4
>
> The problem is actually worse than this description suggests. I updated
> the bugzilla entry now.
>
> The new smp_call_function() that is called from panic is quite unsuitable
> for this task:
> - It allocates memory (not a good idea in panic0
> - It complains about interrupt off
> - This whole thing breaks at least machine checks
Why doesn't it use something like nmi_shootdown_cpus on panic rather than
the (I guess less reliable and longer latency) smp_send_stop?
On Sunday 05 October 2008 04:32, 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 2.6.26. 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 <[email protected]>
> Date : 2008-09-16 23:00 (19 days old)
> References : http://marc.info/?l=linux-kernel&m=122160611517267&w=4
As I wrote (and you copied to the bugzilla), this looks a bitflip in
one of the ptes... But no harm in waiting for the reporter to confirm
or disprove before we strike it off the list :)
> Why doesn't it use something like nmi_shootdown_cpus on panic rather than
There are unfortunately a couple of BIOS around that hang randomly when
NMIs are used (e.g. common problem on ThinkPads). That broke the neck
of the NMI watchdog too.
But yes if we had some way to distingush these broken systems from
sane ones NMI would be the way to go in panic.
-Andi
--
[email protected]
On Wed, 2008-10-08 at 02:11 +1100, Nick Piggin wrote:
> On Sunday 05 October 2008 04:28, 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 2.6.26. 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 <[email protected]>
> > Date : 2008-07-31 3:20 (66 days old)
> > References : http://marc.info/?l=linux-kernel&m=121747464114335&w=4
> > Handled-By : Zhang, Yanmin <[email protected]>
> > Peter Zijlstra <[email protected]>
> > Dhaval Giani <[email protected]>
> > Miao Xie <[email protected]>
>
> Curious: what's happening with this one, handlers? Any progress being made?
Sadly not much, I can't seem to reproduce :-(
Yanmin, does the wakeup patch I did for oltp help this workload any?
http://marc.info/?l=linux-kernel&m=122194673932703&w=4
On Tue, Oct 07, 2008 at 05:48:46PM +0200, Peter Zijlstra wrote:
> On Wed, 2008-10-08 at 02:11 +1100, Nick Piggin wrote:
> > On Sunday 05 October 2008 04:28, 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 2.6.26. 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 <[email protected]>
> > > Date : 2008-07-31 3:20 (66 days old)
> > > References : http://marc.info/?l=linux-kernel&m=121747464114335&w=4
> > > Handled-By : Zhang, Yanmin <[email protected]>
> > > Peter Zijlstra <[email protected]>
> > > Dhaval Giani <[email protected]>
> > > Miao Xie <[email protected]>
> >
> > Curious: what's happening with this one, handlers? Any progress being made?
>
> Sadly not much, I can't seem to reproduce :-(
>
This hits only when sched_compat_yield is set. Sadly, the machine which
did reproduce this for me has gone down. Currently I am away from that
machine for another two weeks. I can try giving it a shot again then.
--
regards,
Dhaval
On Wed, Oct 08, 2008 at 02:23:03AM +1100, Nick Piggin wrote:
> On Sunday 05 October 2008 04:32, 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 2.6.26. 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 <[email protected]>
> > Date : 2008-08-07 04:18 (59 days old)
>
> Any progress being made with this one? Dave, Oleg did some pretty
> nice looking debugging work that indicates it might be a cpufreq
> problem. Have you had a chance to look at the comments in the
> bugzilla? Or have you been cc'ed on patches for this?
I'm not convinced that the original report wasn't hardware related.
We had taken a machine check exception already, which shows that something
isn't quite right. MCEs happening under high load are usually a sign
of thermal/power problems of some sort.
Oleg's comments may still hold true, independant of the report.
I've added Venki to the Cc: as he's recently rewritten considerable
amounts of the ondemand governor (though the workqueue mechanics
are pretty much the same).
Dave
--
http://www.codemonkey.org.uk
On Saturday 04 October 2008, Rafael J. Wysocki wrote:
> The following bug entry is on the current list of known regressions
> from 2.6.26. Please verify if it still should be listed and let me
> know (either way).
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11697
> Subject : CD tray closes spontaneously after opening it
> Submitter : Frans Pop <[email protected]>
> Date : 2008-09-30 10:47 (5 days old)
> References : http://marc.info/?l=linux-kernel&m=122277167125264&w=4
> Handled-By : Kay Sievers <[email protected]>
I have not been able to reproduce this recently. I also don't think it's
really worth tracking this as a regression as there's still a lot of
uncertainty as to what the cause is.
Cheers,
FJP
On Saturday 04 October 2008, Rafael J. Wysocki wrote:
> The following bug entry is on the current list of known regressions
> from 2.6.26. Please verify if it still should be listed and let me
> know (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11550
> Subject : pnp: Huge number of "io resource overlap" messages
> Submitter : Frans Pop <[email protected]>
> Date : 2008-09-09 10:50 (26 days old)
> References : http://marc.info/?l=linux-kernel&m=122095745403793&w=4
> Handled-By : Rene Herman <[email protected]>
> Bjorn Helgaas <[email protected]>
> Patch : http://marc.info/?l=linux-kernel&m=122246533505643&w=4
The structural patch for this from Bjorn got NACKed. AFAIK we're still
waiting for someone (Bjorn?) to decide whether to go with a simpler patch
from Rene for .27 and to push that.
For me it was possible to work around the issue by changing a BIOS
setting, but I expect it will still affect others with similar BIOS
behavior.
On Tue, 2008-10-07 at 17:48 +0200, Peter Zijlstra wrote:
> On Wed, 2008-10-08 at 02:11 +1100, Nick Piggin wrote:
> > On Sunday 05 October 2008 04:28, 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 2.6.26. 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 <[email protected]>
> > > Date : 2008-07-31 3:20 (66 days old)
> > > References : http://marc.info/?l=linux-kernel&m=121747464114335&w=4
> > > Handled-By : Zhang, Yanmin <[email protected]>
> > > Peter Zijlstra <[email protected]>
> > > Dhaval Giani <[email protected]>
> > > Miao Xie <[email protected]>
> >
> > Curious: what's happening with this one, handlers? Any progress being made?
>
> Sadly not much, I can't seem to reproduce :-(
The regression is bigger with more cpu.
>
> Yanmin, does the wakeup patch I did for oltp help this workload any?
>
> http://marc.info/?l=linux-kernel&m=122194673932703&w=4
I tested it against 2.6.29-rc9 on 8-core stoakley and 16-core tigerton. volanoMark
chatroom number is default 10.
Basically, comparing with pure 2.6.27-rc9, the patched kernel's result has about 2%
regression. Group scheduling is enabled.
-yanmin
On Wednesday 08 October 2008 02:32, Dave Jones wrote:
> On Wed, Oct 08, 2008 at 02:18:18AM +1100, Nick Piggin wrote:
> > On Sunday 05 October 2008 04:32, 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 2.6.26. Please verify if it still should be listed and let me
> > > know (either way).
> > >
> > >
> > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11224
> > > Subject : Only three cores found on quad-core machine.
> > > Submitter : Dave Jones <[email protected]>
> > > Date : 2008-08-01 18:15 (65 days old)
> > > References : http://marc.info/?l=linux-kernel&m=121761475224719&w=4
> >
> > Dave, is your CPU2 getting stuck in calibrate_delay? Can you still
> > reproduce the bug? What if you boot the kernel with lpj=<something sane
> > like 2666785> in order to skip the calibrate_delay code?
> >
> > If that helps, can you try adding some printks to narrow down where it
> > is getting stuck?
>
> This is going to sound strange, but I've forgotten which box that was.
> I'm due to reinstall all my test boxes now that the next Fedora beta
> has come out anyway, so I'll hopefully figure out by the end of the week :)
That does sound strange ;) But I can't believe that! It would be really
interesting if it was stuck in calibrate_delay, but maybe the backtrace
is just messed up...
If you do manage to reproduce it, I would be quite interested. Otherwise,
I think we can say it's not a showstopper for 2.6.27.
On Wed, 2008-10-08 at 10:36 +0800, Zhang, Yanmin wrote:
> > Sadly not much, I can't seem to reproduce :-(
> The regression is bigger with more cpu.
Yep :-(
> >
> > Yanmin, does the wakeup patch I did for oltp help this workload any?
> >
> > http://marc.info/?l=linux-kernel&m=122194673932703&w=4
> I tested it against 2.6.29-rc9 on 8-core stoakley and 16-core tigerton. volanoMark
> chatroom number is default 10.
> Basically, comparing with pure 2.6.27-rc9, the patched kernel's result has about 2%
> regression. Group scheduling is enabled.
Ok, so that didn't help. Thanks for testing!
On Wed, Oct 08, 2008 at 03:24:40PM +1100, Nick Piggin wrote:
> > > If that helps, can you try adding some printks to narrow down where it
> > > is getting stuck?
> >
> > This is going to sound strange, but I've forgotten which box that was.
> > I'm due to reinstall all my test boxes now that the next Fedora beta
> > has come out anyway, so I'll hopefully figure out by the end of the week :)
>
> That does sound strange ;) But I can't believe that! It would be really
> interesting if it was stuck in calibrate_delay, but maybe the backtrace
> is just messed up...
>
> If you do manage to reproduce it, I would be quite interested. Otherwise,
> I think we can say it's not a showstopper for 2.6.27.
agreed. I clearly have too many other shiny toys.
Dave
--
http://www.codemonkey.org.uk
On Wed, Oct 08, 2008 at 03:24:40PM +1100, Nick Piggin wrote:
> On Wednesday 08 October 2008 02:32, Dave Jones wrote:
> > On Wed, Oct 08, 2008 at 02:18:18AM +1100, Nick Piggin wrote:
> > > On Sunday 05 October 2008 04:32, 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 2.6.26. Please verify if it still should be listed and let me
> > > > know (either way).
> > > >
> > > >
> > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11224
> > > > Subject : Only three cores found on quad-core machine.
> > > > Submitter : Dave Jones <[email protected]>
> > > > Date : 2008-08-01 18:15 (65 days old)
> > > > References : http://marc.info/?l=linux-kernel&m=121761475224719&w=4
> > >
> > > Dave, is your CPU2 getting stuck in calibrate_delay? Can you still
> > > reproduce the bug? What if you boot the kernel with lpj=<something sane
> > > like 2666785> in order to skip the calibrate_delay code?
> > >
> > > If that helps, can you try adding some printks to narrow down where it
> > > is getting stuck?
> >
> > This is going to sound strange, but I've forgotten which box that was.
> > I'm due to reinstall all my test boxes now that the next Fedora beta
> > has come out anyway, so I'll hopefully figure out by the end of the week :)
>
> That does sound strange ;) But I can't believe that! It would be really
> interesting if it was stuck in calibrate_delay, but maybe the backtrace
> is just messed up...
>
> If you do manage to reproduce it, I would be quite interested. Otherwise,
> I think we can say it's not a showstopper for 2.6.27.
Ok, this can be closed out. 2.6.27 seems to work fine on all the
quad core machines I have in my cube.
Dave
--
http://www.codemonkey.org.uk
On Friday, 10 of October 2008, Dave Jones wrote:
> On Wed, Oct 08, 2008 at 03:24:40PM +1100, Nick Piggin wrote:
> > On Wednesday 08 October 2008 02:32, Dave Jones wrote:
> > > On Wed, Oct 08, 2008 at 02:18:18AM +1100, Nick Piggin wrote:
> > > > On Sunday 05 October 2008 04:32, 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 2.6.26. Please verify if it still should be listed and let me
> > > > > know (either way).
> > > > >
> > > > >
> > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11224
> > > > > Subject : Only three cores found on quad-core machine.
> > > > > Submitter : Dave Jones <[email protected]>
> > > > > Date : 2008-08-01 18:15 (65 days old)
> > > > > References : http://marc.info/?l=linux-kernel&m=121761475224719&w=4
> > > >
> > > > Dave, is your CPU2 getting stuck in calibrate_delay? Can you still
> > > > reproduce the bug? What if you boot the kernel with lpj=<something sane
> > > > like 2666785> in order to skip the calibrate_delay code?
> > > >
> > > > If that helps, can you try adding some printks to narrow down where it
> > > > is getting stuck?
> > >
> > > This is going to sound strange, but I've forgotten which box that was.
> > > I'm due to reinstall all my test boxes now that the next Fedora beta
> > > has come out anyway, so I'll hopefully figure out by the end of the week :)
> >
> > That does sound strange ;) But I can't believe that! It would be really
> > interesting if it was stuck in calibrate_delay, but maybe the backtrace
> > is just messed up...
> >
> > If you do manage to reproduce it, I would be quite interested. Otherwise,
> > I think we can say it's not a showstopper for 2.6.27.
>
> Ok, this can be closed out. 2.6.27 seems to work fine on all the
> quad core machines I have in my cube.
Thanks, closed.
Rafael
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 2.6.26. 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 <[email protected]>
> Date : 2008-08-21 5:52 (45 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) <[email protected]>
> James Bottomley <[email protected]>
Also happened with 2.6.27-git2.
--
~Randy
Randy Dunlap wrote:
> 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 2.6.26. 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 <[email protected]>
>> Date : 2008-08-21 5:52 (45 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) <[email protected]>
>> James Bottomley <[email protected]>
>
> Also happened with 2.6.27-git2.
and on 2.6.27-git7.