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
----------------------------------------
2008-08-16 103 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=11356
Subject : Linux 2.6.27-rc3 - build failure: undefined reference to `.lockdep_count_forward_deps'
Submitter : Frans Pop <[email protected]>
Date : 2008-08-16 19:11 (1 days old)
References : http://marc.info/?l=linux-kernel&m=121891396320127&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11355
Subject : Regression in 2.6.27-rc2 when cross-building the kernel
Submitter : Larry Finger <[email protected]>
Date : 2008-08-16 2:38 (1 days old)
References : http://marc.info/?l=linux-kernel&m=121885432118368&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11354
Subject : AMD Elan regression with 2.6.27-rc3
Submitter : Sean Young <[email protected]>
Date : 2008-08-15 18:37 (2 days old)
References : http://marc.info/?l=linux-kernel&m=121882578430056&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11344
Subject : lockdep link failed
Submitter : Ming Lei <[email protected]>
Date : 2008-08-14 9:58 (3 days old)
References : http://marc.info/?l=linux-kernel&m=121870792715847&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11343
Subject : SATA Cold Boot Problems with 2.6.27-rc[23] on nVidia 680i
Submitter : Manny Maxwell <[email protected]>
Date : 2008-08-14 4:16 (3 days old)
References : http://marc.info/?l=linux-kernel&m=121868782917600&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11341
Subject : 2.6.27-rc1 - ext4 e2fsck false prompting for fixing i_size of Inode
Submitter : Kamalesh Babulal <[email protected]>
Date : 2008-08-13 6:56 (4 days old)
References : http://marc.info/?l=linux-kernel&m=121861058720051&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 (4 days old)
References : http://marc.info/?l=linux-kernel&m=121861951902949&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11339
Subject : Only one of my cpus seems to powered down by cpufreq
Submitter : Torsten Kaiser <[email protected]>
Date : 2008-08-13 20:18 (4 days old)
References : http://marc.info/?l=linux-kernel&m=121865907511340&w=4
Handled-By : Langsdorf, Mark <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11338
Subject : ia64 allmodconfig on current mainline
Submitter : Andrew Morton <[email protected]>
Date : 2008-08-12 22:06 (5 days old)
References : http://marc.info/?l=linux-ia64&m=121857881314455&w=4
Handled-By : Luck, Tony <[email protected]>
Robin Holt <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11337
Subject : Warning in during hotplug on 2.6.27-rc2-git5
Submitter : Mark Langsdorf <[email protected]>
Date : 2008-08-12 21:56 (5 days old)
References : http://marc.info/?l=linux-kernel&m=121857820413373&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11336
Subject : 2.6.27-rc2:stall while mounting root fs
Submitter : Torsten Kaiser <[email protected]>
Date : 2008-08-12 12:37 (5 days old)
References : http://marc.info/?l=linux-kernel&m=121854484015909&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11335
Subject : 2.6.27-rc2-git5 BUG: unable to handle kernel paging request
Submitter : Randy Dunlap <[email protected]>
Date : 2008-08-12 4:18 (5 days old)
References : http://marc.info/?l=linux-kernel&m=121851477201960&w=4
Handled-By : Hugh Dickins <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11334
Subject : myri10ge: use ioremap_wc: compilation failure on ARM
Submitter : Martin Michlmayr <[email protected]>
Date : 2008-08-10 11:25 (7 days old)
References : http://marc.info/?l=linux-netdev&m=121836771727632&w=2
Handled-By : Brice Goglin <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11333
Subject : Rewrite SSB DMA API breaks compilation on ARM
Submitter : Martin Michlmayr <[email protected]>
Date : 2008-08-10 12:16 (7 days old)
References : http://marc.info/?l=linux-wireless&m=121837082431460&w=2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11313
Subject : Plugging HDMI causes "unable to handle kernel paging request"
Submitter : Rafał Miłecki <[email protected]>
Date : 2008-08-12 14:30 (5 days old)
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 (6 days old)
References : http://marc.info/?l=linux-kernel&m=121847986119495&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11296
Subject : 2.6.27-rc2-git4: suspend and power off fails on Asus M3A32-MVP
Submitter : Rafael J. Wysocki <[email protected]>
Date : 2008-08-09 21:21 (8 days old)
References : http://marc.info/?l=linux-kernel&m=121831675111794&w=4
Handled-By : Langsdorf, Mark <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11293
Subject : 2.6.27-rc2: suspend regression on EeePC
Submitter : Alan Jenkins <[email protected]>
Date : 2008-08-06 18:59 (11 days old)
References : http://thread.gmane.org/gmane.linux.kernel.kernel-testers/701
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11282
Subject : Please fix x86 defconfig regression
Submitter : Andi Kleen <[email protected]>
Date : 2008-08-07 20:46 (10 days old)
References : http://marc.info/?l=linux-kernel&m=121814188805666&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11279
Subject : 2.6.27-rc0 Power Bugs with HP/Compaq Laptops
Submitter : Matt Parnell <[email protected]>
Date : 2008-08-07 14:57 (10 days old)
References : http://marc.info/?l=linux-kernel&m=121812108031685&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11278
Subject : 2.6.27-rc2: Very odd top: '5124095h kthreadd' display
Submitter : Grant Coady <[email protected]>
Date : 2008-08-07 7:03 (10 days old)
References : http://marc.info/?l=linux-kernel&m=121809267318795&w=4
Handled-By : Peter Zijlstra <[email protected]>
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 (12 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 (12 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 (10 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11263
Subject : Re: 2.6.27-rc2: uvcvideo WARNING after suspend to ram
Submitter : Alan Jenkins <[email protected]>
Date : 2008-08-07 04:02 (10 days old)
References : http://comments.gmane.org/gmane.linux.kernel/717552
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11245
Subject : acpi error on 2.6.27-rc1+ (ACPI Error (dsobject-0501))
Submitter : Marcin Slusarz <[email protected]>
Date : 2008-08-03 18:29 (14 days old)
References : http://marc.info/?l=linux-kernel&m=121778823123488&w=4
Handled-By : Zhang Rui <[email protected]>
Zhao Yakui <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11237
Subject : corrupt PMD after resume
Submitter : Alan Jenkins <[email protected]>
Date : 2008-08-02 9:51 (15 days old)
References : http://marc.info/?l=linux-kernel&m=121767073424952&w=4
Handled-By : Hugh Dickins <[email protected]>
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 (15 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 (16 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 : Heavy suspend and io problems in 2.6.27-rc1-00156-g94ad374
Submitter : Nico Schottelius <[email protected]>
Date : 2008-07-31 21:05 (17 days old)
References : http://marc.info/?l=linux-kernel&m=121753882422899&w=4
Handled-By : Rafael J. Wysocki <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11219
Subject : KVM modules break emergency reboot
Submitter : Zdenek Kabelac <[email protected]>
Date : 2008-08-01 20:25 (16 days old)
References : http://marc.info/?l=linux-kernel&m=121762241105336&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 (17 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 (17 days old)
References : http://marc.info/?l=linux-ide&m=121753059307310&w=4
Handled-By : Ben Dooks <[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 (17 days old)
References : http://marc.info/?l=linux-kernel&m=121750102917490&w=4
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 (17 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]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11191
Subject : 2.6.26-git8: spinlock lockup in c1e_idle()
Submitter : Mikhail Kshevetskiy <[email protected]>
Date : 2008-07-24 03:22 (24 days old)
References : http://lkml.org/lkml/2008/7/23/317
Handled-By : Thomas Gleixner <[email protected]>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11141
Subject : no battery or DC status - Dell i1501
Submitter : Gu Rui <[email protected]>
Date : 2008-07-21 19:43 (27 days old)
Handled-By : Zhao Yakui <[email protected]>
Regressions with patches
------------------------
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11346
Subject : kernel BUG at arch/x86/mm/pat.c:233!
Submitter : Jean Delvare <[email protected]>
Date : 2008-08-15 02:10 (2 days old)
Handled-By : Andi Kleen <[email protected]>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=17270&action=view
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11330
Subject : int3: 0000 in tsc_read_refs when using powernow_k7
Submitter : Mikko Vinni <[email protected]>
Date : 2008-08-14 04:21 (3 days old)
Patch : http://bugzilla.kernel.org/show_bug.cgi?id=11330#c2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11323
Subject : /proc/diskstats does not contain all disk devices
Submitter : Andy Ryan <[email protected]>
Date : 2008-08-13 12:12 (4 days old)
Handled-By : Greg Kroah-Hartman <[email protected]>
Kay Sievers <[email protected]>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=17257&action=view
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11316
Subject : severe performance regression for iptables nat routing
Submitter : Alex Williamson <[email protected]>
Date : 2008-08-12 22:04 (5 days old)
Handled-By : Herbert Xu <[email protected]>
Patch : http://bugzilla.kernel.org/show_bug.cgi?id=11316#c15
http://bugzilla.kernel.org/show_bug.cgi?id=11316#c16
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11276
Subject : build error: CONFIG_OPTIMIZE_INLINING=y causes gcc 4.2 to do stupid things
Submitter : Randy Dunlap <[email protected]>
Date : 2008-08-06 17:18 (11 days old)
References : http://marc.info/?l=linux-kernel&m=121804329014332&w=4
http://lkml.org/lkml/2008/7/22/353
Handled-By : Bjorn Helgaas <[email protected]>
Patch : http://lkml.org/lkml/2008/7/22/364
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11260
Subject : Regression: USB memory stick triggers several USB resets before settling with bogus capacity
Submitter : Alex Villacis Lasso <[email protected]>
Date : 2008-08-06 13:33 (11 days old)
Handled-By : Hugh Dickins <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=121804333614405&w=2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11254
Subject : KVM: fix userspace ABI breakage
Submitter : Adrian Bunk <[email protected]>
Date : 21 Jul 2008 17:58:26 (0 days old)
References : http://lkml.org/lkml/2008/7/21/197
Handled-By : Adrian Bunk <[email protected]>
Patch : http://lkml.org/lkml/2008/7/21/197
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11228
Subject : p54usb broken by commit b19fa1f
Submitter : Larry Finger <[email protected]>
Date : 2008-08-02 3:06 (15 days old)
References : http://marc.info/?l=linux-kernel&m=121764647801783&w=4
Handled-By : Larry Finger <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=121779445431434&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11205
Subject : x86: 2.6.27-rc1 does not build with gcc-3.2.3 any more
Submitter : Mikael Pettersson <[email protected]>
Date : 2008-07-30 11:02 (18 days old)
References : http://marc.info/?l=linux-kernel&m=121741584608240&w=4
Handled-By : Mikael Pettersson <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=121742199419686&w=2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11189
Subject : sky2 WOL broken
Submitter : Rafael J. Wysocki <[email protected]>
Date : 2008-07-20 0:20:10 (28 days old)
References : http://marc.info/?l=linux-next&m=121651311115104&w=4
Handled-By : Stephen Hemminger <[email protected]>
Rafael J. Wysocki <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=121838931923267&w=4
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=11141
Subject : no battery or DC status - Dell i1501
Submitter : Gu Rui <[email protected]>
Date : 2008-07-21 19:43 (27 days old)
Handled-By : Zhao Yakui <[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=11207
Subject : VolanoMark regression with 2.6.27-rc1
Submitter : Zhang, Yanmin <[email protected]>
Date : 2008-07-31 3:20 (17 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=11191
Subject : 2.6.26-git8: spinlock lockup in c1e_idle()
Submitter : Mikhail Kshevetskiy <[email protected]>
Date : 2008-07-24 03:22 (24 days old)
References : http://lkml.org/lkml/2008/7/23/317
Handled-By : Thomas Gleixner <[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=11189
Subject : sky2 WOL broken
Submitter : Rafael J. Wysocki <[email protected]>
Date : 2008-07-20 0:20:10 (28 days old)
References : http://marc.info/?l=linux-next&m=121651311115104&w=4
Handled-By : Stephen Hemminger <[email protected]>
Rafael J. Wysocki <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=121838931923267&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=11209
Subject : 2.6.27-rc1 process time accounting
Submitter : Lukas Hejtmanek <[email protected]>
Date : 2008-07-31 10:43 (17 days old)
References : http://marc.info/?l=linux-kernel&m=121750102917490&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=11205
Subject : x86: 2.6.27-rc1 does not build with gcc-3.2.3 any more
Submitter : Mikael Pettersson <[email protected]>
Date : 2008-07-30 11:02 (18 days old)
References : http://marc.info/?l=linux-kernel&m=121741584608240&w=4
Handled-By : Mikael Pettersson <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=121742199419686&w=2
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 (17 days old)
References : http://marc.info/?l=linux-ide&m=121753059307310&w=4
Handled-By : Ben Dooks <[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=11228
Subject : p54usb broken by commit b19fa1f
Submitter : Larry Finger <[email protected]>
Date : 2008-08-02 3:06 (15 days old)
References : http://marc.info/?l=linux-kernel&m=121764647801783&w=4
Handled-By : Larry Finger <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=121779445431434&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 (16 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=11230
Subject : Kconfig no longer outputs a .config with freshly updated defconfigs
Submitter : Josh Boyer <[email protected]>
Date : 2008-08-02 16:03 (15 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=11219
Subject : KVM modules break emergency reboot
Submitter : Zdenek Kabelac <[email protected]>
Date : 2008-08-01 20:25 (16 days old)
References : http://marc.info/?l=linux-kernel&m=121762241105336&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=11220
Subject : Heavy suspend and io problems in 2.6.27-rc1-00156-g94ad374
Submitter : Nico Schottelius <[email protected]>
Date : 2008-07-31 21:05 (17 days old)
References : http://marc.info/?l=linux-kernel&m=121753882422899&w=4
Handled-By : Rafael J. Wysocki <[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 (17 days old)
References : http://marc.info/?l=linux-kernel&m=121749737011637&w=4
Handled-By : Peter Zijlstra <[email protected]>
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11237
Subject : corrupt PMD after resume
Submitter : Alan Jenkins <[email protected]>
Date : 2008-08-02 9:51 (15 days old)
References : http://marc.info/?l=linux-kernel&m=121767073424952&w=4
Handled-By : Hugh Dickins <[email protected]>
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11245
Subject : acpi error on 2.6.27-rc1+ (ACPI Error (dsobject-0501))
Submitter : Marcin Slusarz <[email protected]>
Date : 2008-08-03 18:29 (14 days old)
References : http://marc.info/?l=linux-kernel&m=121778823123488&w=4
Handled-By : Zhang Rui <[email protected]>
Zhao Yakui <[email protected]>
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11254
Subject : KVM: fix userspace ABI breakage
Submitter : Adrian Bunk <[email protected]>
Date : 21 Jul 2008 17:58:26 (0 days old)
References : http://lkml.org/lkml/2008/7/21/197
Handled-By : Adrian Bunk <[email protected]>
Patch : http://lkml.org/lkml/2008/7/21/197
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Subject : Regression: USB memory stick triggers several USB resets before settling with bogus capacity
Submitter : Alex Villacis Lasso <[email protected]>
Date : 2008-08-06 13:33 (11 days old)
Handled-By : Hugh Dickins <[email protected]>
Patch : http://marc.info/?l=linux-kernel&m=121804333614405&w=2
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Subject : BUG: fealnx in 2.6.27-rc1
Submitter : Jaswinder Singh <[email protected]>
Date : 2008-08-05 14:58 (12 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]>
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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 (10 days old)
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11263
Subject : Re: 2.6.27-rc2: uvcvideo WARNING after suspend to ram
Submitter : Alan Jenkins <[email protected]>
Date : 2008-08-07 04:02 (10 days old)
References : http://comments.gmane.org/gmane.linux.kernel/717552
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Subject : build error: CONFIG_OPTIMIZE_INLINING=y causes gcc 4.2 to do stupid things
Submitter : Randy Dunlap <[email protected]>
Date : 2008-08-06 17:18 (11 days old)
References : http://marc.info/?l=linux-kernel&m=121804329014332&w=4
http://lkml.org/lkml/2008/7/22/353
Handled-By : Bjorn Helgaas <[email protected]>
Patch : http://lkml.org/lkml/2008/7/22/364
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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 (12 days old)
References : http://marc.info/?l=linux-kernel&m=121794900319776&w=4
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Subject : Please fix x86 defconfig regression
Submitter : Andi Kleen <[email protected]>
Date : 2008-08-07 20:46 (10 days old)
References : http://marc.info/?l=linux-kernel&m=121814188805666&w=4
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Subject : 2.6.27-rc2: Very odd top: '5124095h kthreadd' display
Submitter : Grant Coady <[email protected]>
Date : 2008-08-07 7:03 (10 days old)
References : http://marc.info/?l=linux-kernel&m=121809267318795&w=4
Handled-By : Peter Zijlstra <[email protected]>
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11279
Subject : 2.6.27-rc0 Power Bugs with HP/Compaq Laptops
Submitter : Matt Parnell <[email protected]>
Date : 2008-08-07 14:57 (10 days old)
References : http://marc.info/?l=linux-kernel&m=121812108031685&w=4
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11293
Subject : 2.6.27-rc2: suspend regression on EeePC
Submitter : Alan Jenkins <[email protected]>
Date : 2008-08-06 18:59 (11 days old)
References : http://thread.gmane.org/gmane.linux.kernel.kernel-testers/701
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11296
Subject : 2.6.27-rc2-git4: suspend and power off fails on Asus M3A32-MVP
Submitter : Rafael J. Wysocki <[email protected]>
Date : 2008-08-09 21:21 (8 days old)
References : http://marc.info/?l=linux-kernel&m=121831675111794&w=4
Handled-By : Langsdorf, Mark <[email protected]>
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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 (6 days old)
References : http://marc.info/?l=linux-kernel&m=121847986119495&w=4
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11316
Subject : severe performance regression for iptables nat routing
Submitter : Alex Williamson <[email protected]>
Date : 2008-08-12 22:04 (5 days old)
Handled-By : Herbert Xu <[email protected]>
Patch : http://bugzilla.kernel.org/show_bug.cgi?id=11316#c15
http://bugzilla.kernel.org/show_bug.cgi?id=11316#c16
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11313
Subject : Plugging HDMI causes "unable to handle kernel paging request"
Submitter : Rafał Miłecki <[email protected]>
Date : 2008-08-12 14:30 (5 days old)
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11323
Subject : /proc/diskstats does not contain all disk devices
Submitter : Andy Ryan <[email protected]>
Date : 2008-08-13 12:12 (4 days old)
Handled-By : Greg Kroah-Hartman <[email protected]>
Kay Sievers <[email protected]>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=17257&action=view
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11330
Subject : int3: 0000 in tsc_read_refs when using powernow_k7
Submitter : Mikko Vinni <[email protected]>
Date : 2008-08-14 04:21 (3 days old)
Patch : http://bugzilla.kernel.org/show_bug.cgi?id=11330#c2
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11335
Subject : 2.6.27-rc2-git5 BUG: unable to handle kernel paging request
Submitter : Randy Dunlap <[email protected]>
Date : 2008-08-12 4:18 (5 days old)
References : http://marc.info/?l=linux-kernel&m=121851477201960&w=4
Handled-By : Hugh Dickins <[email protected]>
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11334
Subject : myri10ge: use ioremap_wc: compilation failure on ARM
Submitter : Martin Michlmayr <[email protected]>
Date : 2008-08-10 11:25 (7 days old)
References : http://marc.info/?l=linux-netdev&m=121836771727632&w=2
Handled-By : Brice Goglin <[email protected]>
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Subject : Rewrite SSB DMA API breaks compilation on ARM
Submitter : Martin Michlmayr <[email protected]>
Date : 2008-08-10 12:16 (7 days old)
References : http://marc.info/?l=linux-wireless&m=121837082431460&w=2
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11336
Subject : 2.6.27-rc2:stall while mounting root fs
Submitter : Torsten Kaiser <[email protected]>
Date : 2008-08-12 12:37 (5 days old)
References : http://marc.info/?l=linux-kernel&m=121854484015909&w=4
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11338
Subject : ia64 allmodconfig on current mainline
Submitter : Andrew Morton <[email protected]>
Date : 2008-08-12 22:06 (5 days old)
References : http://marc.info/?l=linux-ia64&m=121857881314455&w=4
Handled-By : Luck, Tony <[email protected]>
Robin Holt <[email protected]>
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Subject : Warning in during hotplug on 2.6.27-rc2-git5
Submitter : Mark Langsdorf <[email protected]>
Date : 2008-08-12 21:56 (5 days old)
References : http://marc.info/?l=linux-kernel&m=121857820413373&w=4
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11339
Subject : Only one of my cpus seems to powered down by cpufreq
Submitter : Torsten Kaiser <[email protected]>
Date : 2008-08-13 20:18 (4 days old)
References : http://marc.info/?l=linux-kernel&m=121865907511340&w=4
Handled-By : Langsdorf, Mark <[email protected]>
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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 (4 days old)
References : http://marc.info/?l=linux-kernel&m=121861951902949&w=4
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11343
Subject : SATA Cold Boot Problems with 2.6.27-rc[23] on nVidia 680i
Submitter : Manny Maxwell <[email protected]>
Date : 2008-08-14 4:16 (3 days old)
References : http://marc.info/?l=linux-kernel&m=121868782917600&w=4
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11344
Subject : lockdep link failed
Submitter : Ming Lei <[email protected]>
Date : 2008-08-14 9:58 (3 days old)
References : http://marc.info/?l=linux-kernel&m=121870792715847&w=4
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11346
Subject : kernel BUG at arch/x86/mm/pat.c:233!
Submitter : Jean Delvare <[email protected]>
Date : 2008-08-15 02:10 (2 days old)
Handled-By : Andi Kleen <[email protected]>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=17270&action=view
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11354
Subject : AMD Elan regression with 2.6.27-rc3
Submitter : Sean Young <[email protected]>
Date : 2008-08-15 18:37 (2 days old)
References : http://marc.info/?l=linux-kernel&m=121882578430056&w=4
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Subject : 2.6.27-rc1 - ext4 e2fsck false prompting for fixing i_size of Inode
Submitter : Kamalesh Babulal <[email protected]>
Date : 2008-08-13 6:56 (4 days old)
References : http://marc.info/?l=linux-kernel&m=121861058720051&w=4
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11355
Subject : Regression in 2.6.27-rc2 when cross-building the kernel
Submitter : Larry Finger <[email protected]>
Date : 2008-08-16 2:38 (1 days old)
References : http://marc.info/?l=linux-kernel&m=121885432118368&w=4
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Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11356
Subject : Linux 2.6.27-rc3 - build failure: undefined reference to `.lockdep_count_forward_deps'
Submitter : Frans Pop <[email protected]>
Date : 2008-08-16 19:11 (1 days old)
References : http://marc.info/?l=linux-kernel&m=121891396320127&w=4
Hi Rafael,
On Sat, 16 Aug 2008 21:02:56 +0200 (CEST), 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=11346
> Subject : kernel BUG at arch/x86/mm/pat.c:233!
> Submitter : Jean Delvare <[email protected]>
> Date : 2008-08-15 02:10 (2 days old)
> Handled-By : Andi Kleen <[email protected]>
> Patch : http://bugzilla.kernel.org/attachment.cgi?id=17270&action=view
Andi's patch still needs to be pushed to Linus.
--
Jean Delvare
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=11355
> Subject : Regression in 2.6.27-rc2 when cross-building the kernel
> Submitter : Larry Finger <[email protected]>
> Date : 2008-08-16 2:38 (1 days old)
> References : http://marc.info/?l=linux-kernel&m=121885432118368&w=4
Yes, bug is still present.
Larry
On Sat, 16 Aug 2008 21:02:51 +0200 (CEST), "Rafael J. Wysocki" <[email protected]> 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=11278
>Subject : 2.6.27-rc2: Very odd top: '5124095h kthreadd' display
>Submitter : Grant Coady <[email protected]>
>Date : 2008-08-07 7:03 (10 days old)
>References : http://marc.info/?l=linux-kernel&m=121809267318795&w=4
>Handled-By : Peter Zijlstra <[email protected]>
>
The problem is not evident in 2.6.27-rc3
Grant.
On Sat, 16 Aug 2008, Rafael J. Wysocki wrote:
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11260
> Subject : Regression: USB memory stick triggers several USB resets before settling with bogus capacity
> Submitter : Alex Villacis Lasso <[email protected]>
> Date : 2008-08-06 13:33 (11 days old)
> Handled-By : Hugh Dickins <[email protected]>
> Patch : http://marc.info/?l=linux-kernel&m=121804333614405&w=2
James has this fix queued in his scsi-rc-fixes for 2.6.27
http://git.kernel.org/?p=linux/kernel/git/jejb/scsi-rc-fixes-2.6.git;a=commit;h=d211f052fa58a053639bc51501cb64421157d362
but hasn't asked Linus to pull for a while: I'm hoping it'll get into -rc4.
Hugh
On Sat, 16 Aug 2008, Rafael J. Wysocki wrote:
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11237
> Subject : corrupt PMD after resume
> Submitter : Alan Jenkins <[email protected]>
> Date : 2008-08-02 9:51 (15 days old)
> References : http://marc.info/?l=linux-kernel&m=121767073424952&w=4
> Handled-By : Hugh Dickins <[email protected]>
Definitely should still be listed: Alan has verified it still happens
with -rc3. I keep on going back to look at the info he's sent, to
try and work out what might be happening and what to try next.
Hugh
On Sat, 16 Aug 2008, Rafael J. Wysocki wrote:
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11335
> Subject : 2.6.27-rc2-git5 BUG: unable to handle kernel paging request
> Submitter : Randy Dunlap <[email protected]>
> Date : 2008-08-12 4:18 (5 days old)
> References : http://marc.info/?l=linux-kernel&m=121851477201960&w=4
> Handled-By : Hugh Dickins <[email protected]>
This should still be listed for now, it's interesting,
but I doubt we'll make any progress unless it can be reproduced.
Hugh
zap_pte_range() overruns the page tables if the distance between the
start and end is not a multiple of the pagesize. Because then,
`start' will never be equal to `end' and we will keep looping.
To fix this, round the boundary addresses to exclude partial pages from
the range completely, we must not unmap them anyway.
Signed-off-by: Johannes Weiner <[email protected]>
---
Hugh Dickins <[email protected]> writes:
> On Sat, 16 Aug 2008, Rafael J. Wysocki wrote:
>>
>> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11335
>> Subject : 2.6.27-rc2-git5 BUG: unable to handle kernel paging request
>> Submitter : Randy Dunlap <[email protected]>
>> Date : 2008-08-12 4:18 (5 days old)
>> References : http://marc.info/?l=linux-kernel&m=121851477201960&w=4
>> Handled-By : Hugh Dickins <[email protected]>
>
> This should still be listed for now, it's interesting,
> but I doubt we'll make any progress unless it can be reproduced.
I think this patch fixes it. exit_mmap() even calls unmap_vmas() with
an ending address of -1UL which is not page-aligned in my book and on my
architecture :)
It is a similar problem to what we had with gup some weeks ago.
diff --git a/mm/memory.c b/mm/memory.c
index 1002f47..483c5d0 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -896,11 +896,17 @@ unsigned long unmap_vmas(struct mmu_gather **tlbp,
long zap_work = ZAP_BLOCK_SIZE;
unsigned long tlb_start = 0; /* For tlb_finish_mmu */
int tlb_start_valid = 0;
- unsigned long start = start_addr;
+ unsigned long start;
spinlock_t *i_mmap_lock = details? details->i_mmap_lock: NULL;
int fullmm = (*tlbp)->fullmm;
struct mm_struct *mm = vma->vm_mm;
+ /* Preserve partial pages */
+ start_addr = PAGE_ALIGN(start_addr);
+ end_addr &= PAGE_MASK;
+
+ start = start_addr;
+
mmu_notifier_invalidate_range_start(mm, start_addr, end_addr);
for ( ; vma && vma->vm_start < end_addr; vma = vma->vm_next) {
unsigned long end;
* Rafael J. Wysocki <[email protected]> [2008-08-16 21:02]:
> 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).
This is still there.
--
Martin Michlmayr
http://www.cyrius.com/
On Sat, 2008-08-16 at 21:02 +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=11209
> Subject : 2.6.27-rc1 process time accounting
> Submitter : Lukas Hejtmanek <[email protected]>
> Date : 2008-07-31 10:43 (17 days old)
> References : http://marc.info/?l=linux-kernel&m=121750102917490&w=4
> Handled-By : Peter Zijlstra <[email protected]>
Should be fixed by: e26b33e9552c29c1d3fe67dc602c6264c29f5dc7
On Sat, 2008-08-16 at 21:02 +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=11278
> Subject : 2.6.27-rc2: Very odd top: '5124095h kthreadd' display
> Submitter : Grant Coady <[email protected]>
> Date : 2008-08-07 7:03 (10 days old)
> References : http://marc.info/?l=linux-kernel&m=121809267318795&w=4
> Handled-By : Peter Zijlstra <[email protected]>
Should be fixed by: e26b33e9552c29c1d3fe67dc602c6264c29f5dc7
On Sat, 16 Aug 2008 21:02:46 +0200 (CEST), 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=3D11205
>Subject : x86: 2.6.27-rc1 does not build with gcc-3.2.3 any more
>Submitter : Mikael Pettersson <[email protected]>
>Date : 2008-07-30 11:02 (18 days old)
>References : http://marc.info/?l=3Dlinux-kernel&m=3D121741584608240&w=3D4
>Handled-By : Mikael Pettersson <[email protected]>
>Patch : http://marc.info/?l=3Dlinux-kernel&m=3D121742199419686&w=3D2
The fix is now in Linus' tree. Commit 1c5b0eb66d74683e2be5da0c53e33c1f4ca982fd.
On Sunday, 17 of August 2008, Mikael Pettersson wrote:
> On Sat, 16 Aug 2008 21:02:46 +0200 (CEST), 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=3D11205
> >Subject : x86: 2.6.27-rc1 does not build with gcc-3.2.3 any more
> >Submitter : Mikael Pettersson <[email protected]>
> >Date : 2008-07-30 11:02 (18 days old)
> >References : http://marc.info/?l=3Dlinux-kernel&m=3D121741584608240&w=3D4
> >Handled-By : Mikael Pettersson <[email protected]>
> >Patch : http://marc.info/?l=3Dlinux-kernel&m=3D121742199419686&w=3D2
>
> The fix is now in Linus' tree. Commit 1c5b0eb66d74683e2be5da0c53e33c1f4ca982fd.
Thanks, closed.
Rafael
On Sun, 17 Aug 2008, Johannes Weiner wrote:
> zap_pte_range() overruns the page tables if the distance between the
> start and end is not a multiple of the pagesize. Because then,
> `start' will never be equal to `end' and we will keep looping.
>
> To fix this, round the boundary addresses to exclude partial pages from
> the range completely, we must not unmap them anyway.
You've a good idea here, but no.
>
> Signed-off-by: Johannes Weiner <[email protected]>
> ---
>
> Hugh Dickins <[email protected]> writes:
>
> > On Sat, 16 Aug 2008, Rafael J. Wysocki wrote:
> >>
> >> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11335
> >> Subject : 2.6.27-rc2-git5 BUG: unable to handle kernel paging request
> >> Submitter : Randy Dunlap <[email protected]>
> >> Date : 2008-08-12 4:18 (5 days old)
> >> References : http://marc.info/?l=linux-kernel&m=121851477201960&w=4
> >> Handled-By : Hugh Dickins <[email protected]>
> >
> > This should still be listed for now, it's interesting,
> > but I doubt we'll make any progress unless it can be reproduced.
>
> I think this patch fixes it. exit_mmap() even calls unmap_vmas() with
> an ending address of -1UL which is not page-aligned in my book and on my
> architecture :)
You need to take into consideration that gazillions of calls to
exit_mmap(), unmap_vmas() and zap_pte_range() have been succeeding
since we reworked those loops three years ago. exit_mmap() calls
unmap_vmas() with a start_addr of 0 (so your patch won't help that),
and the (unsigned long) end_addr of -1 is simply an upper bound on
on how far the vma loop goes, it doesn't need the alignment your
patch enforces.
That's a great idea that overrunning a pagetable may account for
Randy's apparent pagetable corruption: I (and please, you too) need
to go back over the info he's given with that hypothesis in mind,
it certainly fits well the fact that 6 out of 7 entries were found
bad at the _start_ of a pagetable before collapsing - though OTOH
I don't think it does fit with the two processes seeing similar
but different corruption, or the general protection faults.
But definitely worth pursuing, it hadn't crossed my mind.
But if a pagetable is being overrun in that way, doesn't that mean
that a vma->vm_start (or vma->vm_end?) has got corrupted, and then
we'll need to work that out. vm_start and vm_end (unless corrupted)
are always page aligned, and there's lots of code which assumes that:
or have you noticed somewhere that's not so?
>
> It is a similar problem to what we had with gup some weeks ago.
You're right that those pgd_addr_end() etc. loops have an implicit
and fragile dependence on the page alignment of addr and end. They
were written that way to maximize efficiency and be homogeneous
across the levels, while handling the wrapped end 0 case. But both
fast gup and pagewalk have stumbled on those assumptions recently.
Hugh
On Sunday, 17 of August 2008, Hugh Dickins wrote:
> On Sat, 16 Aug 2008, Rafael J. Wysocki wrote:
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11260
> > Subject : Regression: USB memory stick triggers several USB resets before settling with bogus capacity
> > Submitter : Alex Villacis Lasso <[email protected]>
> > Date : 2008-08-06 13:33 (11 days old)
> > Handled-By : Hugh Dickins <[email protected]>
> > Patch : http://marc.info/?l=linux-kernel&m=121804333614405&w=2
>
> James has this fix queued in his scsi-rc-fixes for 2.6.27
>
> http://git.kernel.org/?p=linux/kernel/git/jejb/scsi-rc-fixes-2.6.git;a=commit;h=d211f052fa58a053639bc51501cb64421157d362
>
> but hasn't asked Linus to pull for a while: I'm hoping it'll get into -rc4.
Thanks for the update.
Rafael
On Sunday, 17 of August 2008, Hugh Dickins wrote:
> On Sat, 16 Aug 2008, Rafael J. Wysocki wrote:
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11237
> > Subject : corrupt PMD after resume
> > Submitter : Alan Jenkins <[email protected]>
> > Date : 2008-08-02 9:51 (15 days old)
> > References : http://marc.info/?l=linux-kernel&m=121767073424952&w=4
> > Handled-By : Hugh Dickins <[email protected]>
>
> Definitely should still be listed: Alan has verified it still happens
> with -rc3. I keep on going back to look at the info he's sent, to
> try and work out what might be happening and what to try next.
Thanks for the update.
Rafael
On Sunday, 17 of August 2008, Peter Zijlstra wrote:
> On Sat, 2008-08-16 at 21:02 +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=11209
> > Subject : 2.6.27-rc1 process time accounting
> > Submitter : Lukas Hejtmanek <[email protected]>
> > Date : 2008-07-31 10:43 (17 days old)
> > References : http://marc.info/?l=linux-kernel&m=121750102917490&w=4
> > Handled-By : Peter Zijlstra <[email protected]>
>
>
> Should be fixed by: e26b33e9552c29c1d3fe67dc602c6264c29f5dc7
Thanks, closed.
Rafael
On Sunday, 17 of August 2008, Peter Zijlstra wrote:
> On Sat, 2008-08-16 at 21:02 +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=11278
> > Subject : 2.6.27-rc2: Very odd top: '5124095h kthreadd' display
> > Submitter : Grant Coady <[email protected]>
> > Date : 2008-08-07 7:03 (10 days old)
> > References : http://marc.info/?l=linux-kernel&m=121809267318795&w=4
> > Handled-By : Peter Zijlstra <[email protected]>
>
>
> Should be fixed by: e26b33e9552c29c1d3fe67dc602c6264c29f5dc7
Thanks, closed.
Rafael
Hi Hugh,
Hugh Dickins <[email protected]> writes:
> On Sun, 17 Aug 2008, Johannes Weiner wrote:
>> zap_pte_range() overruns the page tables if the distance between the
>> start and end is not a multiple of the pagesize. Because then,
>> `start' will never be equal to `end' and we will keep looping.
>>
>> To fix this, round the boundary addresses to exclude partial pages from
>> the range completely, we must not unmap them anyway.
>
> You've a good idea here, but no.
>
>>
>> Signed-off-by: Johannes Weiner <[email protected]>
>> ---
>>
>> Hugh Dickins <[email protected]> writes:
>>
>> > On Sat, 16 Aug 2008, Rafael J. Wysocki wrote:
>> >>
>> >> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11335
>> >> Subject : 2.6.27-rc2-git5 BUG: unable to handle kernel paging request
>> >> Submitter : Randy Dunlap <[email protected]>
>> >> Date : 2008-08-12 4:18 (5 days old)
>> >> References : http://marc.info/?l=linux-kernel&m=121851477201960&w=4
>> >> Handled-By : Hugh Dickins <[email protected]>
>> >
>> > This should still be listed for now, it's interesting,
>> > but I doubt we'll make any progress unless it can be reproduced.
>>
>> I think this patch fixes it. exit_mmap() even calls unmap_vmas() with
>> an ending address of -1UL which is not page-aligned in my book and on my
>> architecture :)
>
> You need to take into consideration that gazillions of calls to
> exit_mmap(), unmap_vmas() and zap_pte_range() have been succeeding
> since we reworked those loops three years ago. exit_mmap() calls
> unmap_vmas() with a start_addr of 0 (so your patch won't help that),
> and the (unsigned long) end_addr of -1 is simply an upper bound on
> on how far the vma loop goes, it doesn't need the alignment your
> patch enforces.
Now that you say it, yes, I don't see any way how the upper bound of
-1UL could break it as vm_end is most probably lower than that :)
However:
start = max(vma->vm_start, start_addr);
end = min(vma->vm_end, end_addr);
The overrun *is* possible if the given ending address is lower than the
vm_end.
The same goes for a broken start if it is higher than vm_start.
> That's a great idea that overrunning a pagetable may account for
> Randy's apparent pagetable corruption: I (and please, you too) need
> to go back over the info he's given with that hypothesis in mind,
> it certainly fits well the fact that 6 out of 7 entries were found
> bad at the _start_ of a pagetable before collapsing - though OTOH
> I don't think it does fit with the two processes seeing similar
> but different corruption, or the general protection faults.
> But definitely worth pursuing, it hadn't crossed my mind.
Frankly, I didn't look too much at what Randy reported. I ran off a bit
quick when I saw that the fault came on an empty PMD within this code as
this overrun issue was still in the back of my head and I knew there
were similar loops involved.
I will try and help debugging this further.
> But if a pagetable is being overrun in that way, doesn't that mean
> that a vma->vm_start (or vma->vm_end?) has got corrupted, and then
> we'll need to work that out. vm_start and vm_end (unless corrupted)
> are always page aligned, and there's lots of code which assumes that:
> or have you noticed somewhere that's not so?
No, I have not.
But an overrun condition also does not require broken VMA bounds.
Although that could be a possibility, too, of course.
>> It is a similar problem to what we had with gup some weeks ago.
>
> You're right that those pgd_addr_end() etc. loops have an implicit
> and fragile dependence on the page alignment of addr and end. They
> were written that way to maximize efficiency and be homogeneous
> across the levels, while handling the wrapped end 0 case. But both
> fast gup and pagewalk have stumbled on those assumptions recently.
Yeah, especially since they could cause silent page table corruption :(
In this respect, I still think that my patch has a point. Because yes,
the looping depends on page aligned boundaries, but we don't check for
this required dependency and values leading to overruns are able to pass
through, as explained above.
> Hugh
Hannes
* Rafael J. Wysocki <[email protected]> [2008-08-16 21:02]:
> 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).
This just got fixed by "[ARM] dma-mapping: provide sync_range APIs":
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=9dd428680573d7867ee5e40fa3f059a98301d416
--
Martin Michlmayr
http://www.cyrius.com/
On Sunday, 17 of August 2008, Martin Michlmayr wrote:
> * Rafael J. Wysocki <[email protected]> [2008-08-16 21:02]:
> > 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).
>
> This is still there.
Thanks for the update.
Rafael
On Saturday, 16 of August 2008, Jean Delvare wrote:
> Hi Rafael,
>
> On Sat, 16 Aug 2008 21:02:56 +0200 (CEST), 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=11346
> > Subject : kernel BUG at arch/x86/mm/pat.c:233!
> > Submitter : Jean Delvare <[email protected]>
> > Date : 2008-08-15 02:10 (2 days old)
> > Handled-By : Andi Kleen <[email protected]>
> > Patch : http://bugzilla.kernel.org/attachment.cgi?id=17270&action=view
>
> Andi's patch still needs to be pushed to Linus.
Thanks for the update.
Rafael
On Saturday, 16 of August 2008, Larry Finger 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=11355
> > Subject : Regression in 2.6.27-rc2 when cross-building the kernel
> > Submitter : Larry Finger <[email protected]>
> > Date : 2008-08-16 2:38 (1 days old)
> > References : http://marc.info/?l=linux-kernel&m=121885432118368&w=4
>
> Yes, bug is still present.
Thanks for the update.
Rafael
On Sunday, 17 of August 2008, Martin Michlmayr wrote:
> * Rafael J. Wysocki <[email protected]> [2008-08-16 21:02]:
> > 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).
>
> This just got fixed by "[ARM] dma-mapping: provide sync_range APIs":
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=9dd428680573d7867ee5e40fa3f059a98301d416
Thanks, closed.
Rafael
* Rafael J. Wysocki <[email protected]> wrote:
> On Saturday, 16 of August 2008, Jean Delvare wrote:
> > Hi Rafael,
> >
> > On Sat, 16 Aug 2008 21:02:56 +0200 (CEST), 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=11346
> > > Subject : kernel BUG at arch/x86/mm/pat.c:233!
> > > Submitter : Jean Delvare <[email protected]>
> > > Date : 2008-08-15 02:10 (2 days old)
> > > Handled-By : Andi Kleen <[email protected]>
> > > Patch : http://bugzilla.kernel.org/attachment.cgi?id=17270&action=view
> >
> > Andi's patch still needs to be pushed to Linus.
>
> Thanks for the update.
now upstream as commit e213e8778.
Ingo
On Sun, 17 Aug 2008, Johannes Weiner wrote:
> Hugh Dickins <[email protected]> writes:
>
> I will try and help debugging this further.
Thanks!
> > You're right that those pgd_addr_end() etc. loops have an implicit
> > and fragile dependence on the page alignment of addr and end. They
> > were written that way to maximize efficiency and be homogeneous
> > across the levels, while handling the wrapped end 0 case. But both
> > fast gup and pagewalk have stumbled on those assumptions recently.
>
> Yeah, especially since they could cause silent page table corruption :(
Silent? I guess those'll be the cases we've not heard about ;)
>
> In this respect, I still think that my patch has a point. Because yes,
> the looping depends on page aligned boundaries, but we don't check for
> this required dependency and values leading to overruns are able to pass
> through, as explained above.
I don't think the patch you sent had a lot of point: if there is a
problem, it extends way beyond just the entry to unmap_vmas(); and
really it's not the well-established loops we have to worry about,
it's where people add new ones without thinking about alignment.
If we put alignment BUG_ONs at the start of every such loop,
yes, that would help the new ones to follow the same pattern.
Or if we put alignment VM_BUG_ONs inside p?d_addr_next(), that
might help too - I say VM_BUG_ONs because we don't really want
to slow down the usual config, though that would then miss any
cases of vma corruption in the wild.
But even if we did so, it looks like we go for a long while only
testing the page-aligned cases anyway (which, barring corruption,
is always the case coming from vm_start and vm_end: the exceptions
are things like fault addresses or atypical I/O sizes), which
would not BUG anyway. As soon as someone does try the unaligned,
we veer off to an unbounded loop and hit something nasty quite
noisily, don't we?
I do think there's a message about review and testing here, but
not a great case for BUGs. Well, you didn't BUG, you enforced
alignment; but if the input is wrong, you cannot tell whether
to round up or round down in there, so better to BUG or WARN.
Hugh
On Sat, Aug 16, 2008 at 09:00:39PM +0200, Rafael J. Wysocki wrote:
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11341
> Subject : 2.6.27-rc1 - ext4 e2fsck false prompting for fixing i_size of Inode
> Submitter : Kamalesh Babulal <[email protected]>
> Date : 2008-08-13 6:56 (4 days old)
> References : http://marc.info/?l=linux-kernel&m=121861058720051&w=4
This wasn't a regression because it wasn't a kernel bug (and so by
definition it existed on prior kernel versions :-). I've just checked
in a fix into the e2fsprogs repository, and I've included the
e2fsprogs patch in the bugzilla record for the user's convenience.
- Ted
Hi,
Hugh Dickins <[email protected]> writes:
> On Sun, 17 Aug 2008, Johannes Weiner wrote:
>> Hugh Dickins <[email protected]> writes:
>>
>> I will try and help debugging this further.
>
> Thanks!
>
>> > You're right that those pgd_addr_end() etc. loops have an implicit
>> > and fragile dependence on the page alignment of addr and end. They
>> > were written that way to maximize efficiency and be homogeneous
>> > across the levels, while handling the wrapped end 0 case. But both
>> > fast gup and pagewalk have stumbled on those assumptions recently.
>>
>> Yeah, especially since they could cause silent page table corruption :(
>
> Silent? I guess those'll be the cases we've not heard about ;)
Or we couldn't associate the problem with the source :)
>> In this respect, I still think that my patch has a point. Because yes,
>> the looping depends on page aligned boundaries, but we don't check for
>> this required dependency and values leading to overruns are able to pass
>> through, as explained above.
>
> I don't think the patch you sent had a lot of point: if there is a
> problem, it extends way beyond just the entry to unmap_vmas(); and
> really it's not the well-established loops we have to worry about,
> it's where people add new ones without thinking about alignment.
The loops might have been there for long but the usage and input is
prone to change.
For example remap_pfn_range is used by drivers and it has the same
alignment requirements. Perhaps an explicit comment in the kerneldoc?
Iff there is even a problem with all these things, still looking through
callsites, rereading your mails and thinking about it.. Hey, this thing
is big and I try hard to get a clue ;)
> If we put alignment BUG_ONs at the start of every such loop,
> yes, that would help the new ones to follow the same pattern.
> Or if we put alignment VM_BUG_ONs inside p?d_addr_next(), that
> might help too - I say VM_BUG_ONs because we don't really want
> to slow down the usual config, though that would then miss any
> cases of vma corruption in the wild.
>
> But even if we did so, it looks like we go for a long while only
> testing the page-aligned cases anyway (which, barring corruption,
> is always the case coming from vm_start and vm_end: the exceptions
> are things like fault addresses or atypical I/O sizes), which
> would not BUG anyway. As soon as someone does try the unaligned,
> we veer off to an unbounded loop and hit something nasty quite
> noisily, don't we?
Yeah, I think so.
> I do think there's a message about review and testing here, but
> not a great case for BUGs. Well, you didn't BUG, you enforced
> alignment; but if the input is wrong, you cannot tell whether
> to round up or round down in there, so better to BUG or WARN.
Agreed. Well, in the unmap_vmas() case you can not unmap partial pages,
so you would probably be able to guess correct. But I agree it should
be up to the callsite.
Hannes
On Sun, 2008-08-17 at 00:33 +0100, Hugh Dickins wrote:
> On Sat, 16 Aug 2008, Rafael J. Wysocki wrote:
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11260
> > Subject : Regression: USB memory stick triggers several USB resets before settling with bogus capacity
> > Submitter : Alex Villacis Lasso <[email protected]>
> > Date : 2008-08-06 13:33 (11 days old)
> > Handled-By : Hugh Dickins <[email protected]>
> > Patch : http://marc.info/?l=linux-kernel&m=121804333614405&w=2
>
> James has this fix queued in his scsi-rc-fixes for 2.6.27
>
> http://git.kernel.org/?p=linux/kernel/git/jejb/scsi-rc-fixes-2.6.git;a=commit;h=d211f052fa58a053639bc51501cb64421157d362
>
> but hasn't asked Linus to pull for a while: I'm hoping it'll get into -rc4.
Yes ... sure. linux-next has slowed my push to rcs because it's in
there as soon as it's in my git tree. However, give it a couple of days
to test out the rest of the fixes in the tree and I'll send a push
request.
James
On Sunday, 17 of August 2008, Theodore Tso wrote:
> On Sat, Aug 16, 2008 at 09:00:39PM +0200, Rafael J. Wysocki wrote:
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11341
> > Subject : 2.6.27-rc1 - ext4 e2fsck false prompting for fixing i_size of Inode
> > Submitter : Kamalesh Babulal <[email protected]>
> > Date : 2008-08-13 6:56 (4 days old)
> > References : http://marc.info/?l=linux-kernel&m=121861058720051&w=4
>
> This wasn't a regression because it wasn't a kernel bug (and so by
> definition it existed on prior kernel versions :-). I've just checked
> in a fix into the e2fsprogs repository, and I've included the
> e2fsprogs patch in the bugzilla record for the user's convenience.
Thanks a lot for handling this.
Rafael
On Sat, Aug 16, 2008 at 09:02:49PM +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).
yes
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11254
> Subject : KVM: fix userspace ABI breakage
> Submitter : Adrian Bunk <[email protected]>
> Date : 21 Jul 2008 17:58:26 (0 days old)
> References : http://lkml.org/lkml/2008/7/21/197
> Handled-By : Adrian Bunk <[email protected]>
> Patch : http://lkml.org/lkml/2008/7/21/197
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
2008/8/16, Rafael J. Wysocki <[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=11313> Subject : Plugging HDMI causes "unable to handle kernel paging request"> Submitter : Rafał Miłecki <[email protected]>> Date : 2008-08-12 14:30 (5 days old)
Bug still exists in current git (tested 15 minutes ago).
-- Rafał Miłecki????{.n?+???????+%?????ݶ??w??{.n?+????{??G?????{ay? ʇڙ?,j??f???h?????????z_??(?階?ݢj"???m??????G????????????&???~???iO???z??v?^?m???? ????????I?
On Sunday, 17 of August 2008, Rafał Miłecki wrote:
> 2008/8/16, Rafael J. Wysocki <[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=11313
> > Subject : Plugging HDMI causes "unable to handle kernel paging request"
> > Submitter : Rafał Miłecki <[email protected]>
> > Date : 2008-08-12 14:30 (5 days old)
>
> Bug still exists in current git (tested 15 minutes ago).
>
Thanks for the update.
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=11228
> Subject : p54usb broken by commit b19fa1f
> Submitter : Larry Finger <[email protected]>
> Date : 2008-08-02 3:06 (15 days old)
> References : http://marc.info/?l=linux-kernel&m=121764647801783&w=4
> Handled-By : Larry Finger <[email protected]>
> Patch : http://marc.info/?l=linux-kernel&m=121779445431434&w=4
The fix was pushed from wireless (Linville) to networks (davem) on 8/17.
On Sat, 2008-08-16 at 12:02 -0700, 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).
There is this fix
commit d554d9a4295dd0595d12eeccbc55d1f495b15176
Author: Marcin Slusarz <[email protected]>
Date: Mon Aug 11 00:07:44 2008 +0200
x86, tsc: fix section mismatch warning
which is in x86/tip-master which fixes this issue.
I don't see the fix in the mainline tree yet.
Maybe Ingo, has it queued, for upstream ?
Ingo, other than a section mismatch warning it also fixes a real bug.
Thanks,
Alok
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11330
> Subject : int3: 0000 in tsc_read_refs when using powernow_k7
> Submitter : Mikko Vinni <[email protected]>
> Date : 2008-08-14 04:21 (3 days old)
> Patch : http://bugzilla.kernel.org/show_bug.cgi?id=11330#c2
>
>
* Alok Kataria <[email protected]> wrote:
> On Sat, 2008-08-16 at 12:02 -0700, 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).
>
> There is this fix
>
> commit d554d9a4295dd0595d12eeccbc55d1f495b15176
> Author: Marcin Slusarz <[email protected]>
> Date: Mon Aug 11 00:07:44 2008 +0200
>
> x86, tsc: fix section mismatch warning
>
> which is in x86/tip-master which fixes this issue.
> I don't see the fix in the mainline tree yet.
>
> Maybe Ingo, has it queued, for upstream ?
> Ingo, other than a section mismatch warning it also fixes a real bug.
yeah, hpa queued it up into x86/urgent as well earlier today, it will go
out with the next pull request.
Ingo
As of 2.6.26-rc3-git3 bug still exist.
It affect both i386 and x86_64 architectures.
Mikhail
On Sat, 16 Aug 2008 21:02:46 +0200 (CEST)
"Rafael J. Wysocki" <[email protected]> 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=11191
> Subject : 2.6.26-git8: spinlock lockup in c1e_idle()
> Submitter : Mikhail Kshevetskiy <[email protected]>
> Date : 2008-07-24 03:22 (24 days old)
> References : http://lkml.org/lkml/2008/7/23/317
> Handled-By : Thomas Gleixner <[email protected]>
>
>
On Monday, 18 of August 2008, Mikhail Kshevetskiy wrote:
> As of 2.6.26-rc3-git3 bug still exist.
> It affect both i386 and x86_64 architectures.
>
> Mikhail
Thanks for the update,
Rafael
> On Sat, 16 Aug 2008 21:02:46 +0200 (CEST)
> "Rafael J. Wysocki" <[email protected]> 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=11191
> > Subject : 2.6.26-git8: spinlock lockup in c1e_idle()
> > Submitter : Mikhail Kshevetskiy <[email protected]>
> > Date : 2008-07-24 03:22 (24 days old)
> > References : http://lkml.org/lkml/2008/7/23/317
> > Handled-By : Thomas Gleixner <[email protected]>
* Ingo Molnar <[email protected]> wrote:
> > There is this fix
> >
> > commit d554d9a4295dd0595d12eeccbc55d1f495b15176
> > Author: Marcin Slusarz <[email protected]>
> > Date: Mon Aug 11 00:07:44 2008 +0200
> >
> > x86, tsc: fix section mismatch warning
> >
> > which is in x86/tip-master which fixes this issue.
> > I don't see the fix in the mainline tree yet.
> >
> > Maybe Ingo, has it queued, for upstream ?
> > Ingo, other than a section mismatch warning it also fixes a real bug.
>
> yeah, hpa queued it up into x86/urgent as well earlier today, it will go
> out with the next pull request.
FYI, commit d554d9a4295d is upstream now, and will be part of -rc4.
Ingo
On Tuesday, 19 of August 2008, Ingo Molnar wrote:
>
> * Ingo Molnar <[email protected]> wrote:
>
> > > There is this fix
> > >
> > > commit d554d9a4295dd0595d12eeccbc55d1f495b15176
> > > Author: Marcin Slusarz <[email protected]>
> > > Date: Mon Aug 11 00:07:44 2008 +0200
> > >
> > > x86, tsc: fix section mismatch warning
> > >
> > > which is in x86/tip-master which fixes this issue.
> > > I don't see the fix in the mainline tree yet.
> > >
> > > Maybe Ingo, has it queued, for upstream ?
> > > Ingo, other than a section mismatch warning it also fixes a real bug.
> >
> > yeah, hpa queued it up into x86/urgent as well earlier today, it will go
> > out with the next pull request.
>
> FYI, commit d554d9a4295d is upstream now, and will be part of -rc4.
Thanks, I closed the bug.
Rafael
Rafał Miłecki wrote:
> 2008/8/16, Rafael J. Wysocki <[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=11313
>> Subject : Plugging HDMI causes "unable to handle kernel paging request"
>> Submitter : Rafał Miłecki <[email protected]>
>> Date : 2008-08-12 14:30 (5 days old)
>>
>
> Bug still exists in current git (tested 15 minutes ago).
>
What's your .config on this kernel, BTW?
J
Rafał Miłecki wrote:
> Bug still exists in current git (tested 15 minutes ago).
>
Could you apply this patch and post the output of dmesg from booting (no
need to crash it again).
Thanks,
J
diff -r 3f465c361b3c arch/x86/mm/init_64.c
--- a/arch/x86/mm/init_64.c Wed Aug 13 20:50:10 2008 -0700
+++ b/arch/x86/mm/init_64.c Tue Aug 19 16:50:10 2008 -0700
@@ -331,6 +331,8 @@
}
if (pmd_val(*pmd)) {
+ printk("addr %lx reusing pmd %lx %016lx\n",
+ address, __pa(pmd), pmd_val(*pmd));
if (!pmd_large(*pmd))
last_map_addr = phys_pte_update(pmd, address,
end);
@@ -392,6 +394,8 @@
}
if (pud_val(*pud)) {
+ printk("addr %lx reusing pud %lx %016lx\n",
+ addr, __pa(pud), pud_val(*pud));
if (!pud_large(*pud))
last_map_addr = phys_pmd_update(pud, addr, end,
page_size_mask);
@@ -500,6 +504,8 @@
next = end;
if (pgd_val(*pgd)) {
+ printk("addr %lx reusing pgd %lx %016lx\n",
+ __pa(start), __pa(pgd), pgd_val(*pgd));
last_map_addr = phys_pud_update(pgd, __pa(start),
__pa(end), page_size_mask);
continue;
2008/8/19, Jeremy Fitzhardinge <[email protected]>:> What's your .config on this kernel, BTW?
I mostly used openSUSE's kernel configuration. I just disabled paravirt.http://bugzilla.kernel.org/attachment.cgi?id=17329
2008/8/20, Jeremy Fitzhardinge <[email protected]>:> Rafał Miłecki wrote:>> Bug still exists in current git (tested 15 minutes ago).>>>> Could you apply this patch and post the output of dmesg from booting (no> need to crash it again).
Sure, as everything to help debugging this :)http://bugzilla.kernel.org/attachment.cgi?id=17330
-- Rafał Miłecki????{.n?+???????+%?????ݶ??w??{.n?+????{??G?????{ay? ʇڙ?,j??f???h?????????z_??(?階?ݢj"???m??????G????????????&???~???iO???z??v?^?m???? ????????I?
Rafał Miłecki wrote:
> Sure, as everything to help debugging this :)
> http://bugzilla.kernel.org/attachment.cgi?id=17330
>
Thanks, but could you post the *full* dmesg output, including the added
lines? I want to see the other things it prints around there.
That said, I don't see anything unexpected in here. It would be
interested to compare to the E820 map.
Also, what kind of machine is this? Oh, Vaio. Hm. Have you checked to
see whether there's an updated BIOS? How much memory does it have
installed?
J
2008/8/20 Jeremy Fitzhardinge <[email protected]>:> Rafał Miłecki wrote:>> Sure, as everything to help debugging this :)>> http://bugzilla.kernel.org/attachment.cgi?id=17330>>>> Thanks, but could you post the *full* dmesg output, including the added> lines? I want to see the other things it prints around there.I added full dmesg 5 minutes after adding grepped:http://bugzilla.kernel.org/attachment.cgi?id=17331
> That said, I don't see anything unexpected in here. It would be> interested to compare to the E820 map.OK, I'll compare that tomorrow.
> Also, what kind of machine is this? Oh, Vaio. Hm. Have you checked to> see whether there's an updated BIOS? How much memory does it have> installed?It's Sony Vaio FW11 with 4GB of RAM. Will chec for BIOS update tomorrow.
-- Rafał Miłecki????{.n?+???????+%?????ݶ??w??{.n?+????{??G?????{ay? ʇڙ?,j??f???h?????????z_??(?階?ݢj"???m??????G????????????&???~???iO???z??v?^?m???? ????????I?
Rafał Miłecki wrote:
> 2008/8/20 Jeremy Fitzhardinge <[email protected]>:
>
>> Rafał Miłecki wrote:
>>
>>> Sure, as everything to help debugging this :)
>>> http://bugzilla.kernel.org/attachment.cgi?id=17330
>>>
>>>
>> Thanks, but could you post the *full* dmesg output, including the added
>> lines? I want to see the other things it prints around there.
>>
> I added full dmesg 5 minutes after adding grepped:
> http://bugzilla.kernel.org/attachment.cgi?id=17331
>
Yep, saw it thanks.
J
Rafał Miłecki wrote:
> I added full dmesg 5 minutes after adding grepped:
> http://bugzilla.kernel.org/attachment.cgi?id=17331
>
OK, I think I see the problem (pasted from bugzilla comment):
>>>>
Some notes as I pick through all the evidence so far:
- the crash is specifically because there are reserved bits set in the pmd
- the pmd is b02a00043a6001a3 in both cases
- the vaddr is ffff88013a600000 in the first crash, and
ffff81013a6d1c00 in the second
corresponding to the same large-page pmd mapping of phys page 0x13a600000
- this maps to e820 entry
BIOS-e820: 0000000100000000 - 0000000140000000 (usable)
- the corresponding boot-time mapping is
init_memory_mapping
0100000000 - 0140000000 page 2M
kernel direct mapping tables up to 140000000 @ b000-11000
^^^^^^^^^^
addr 100000000 reusing pgd 201880 0000000000202063
last_map_addr: 140000000 end: 140000000
!!! and the memory allocated for this pagetable is:
#5 [0000008000 - 000000b000] PGTABLE ==> [0000008000 - 000000b000]
#6 [000000b000 - 000000c000] PGTABLE ==> [000000b000 - 000000c000]
^^^^^^^^^^^^^^^^^^^^^^^
IOW, it's mapping using b000-11000, but it has only reserved b000 - c000
Also, this is right in the middle of the ISA area, which seems risky.
<<<<
Bug #11237 shows the same symptom, so I'm pretty confident they're dups now.
J
On Thursday, 21 of August 2008, Jeremy Fitzhardinge wrote:
> Rafał Miłecki wrote:
> > I added full dmesg 5 minutes after adding grepped:
> > http://bugzilla.kernel.org/attachment.cgi?id=17331
> >
>
> OK, I think I see the problem (pasted from bugzilla comment):
>
> >>>>
> Some notes as I pick through all the evidence so far:
>
> - the crash is specifically because there are reserved bits set in the pmd
> - the pmd is b02a00043a6001a3 in both cases
> - the vaddr is ffff88013a600000 in the first crash, and
> ffff81013a6d1c00 in the second
> corresponding to the same large-page pmd mapping of phys page 0x13a600000
> - this maps to e820 entry
> BIOS-e820: 0000000100000000 - 0000000140000000 (usable)
> - the corresponding boot-time mapping is
>
> init_memory_mapping
> 0100000000 - 0140000000 page 2M
> kernel direct mapping tables up to 140000000 @ b000-11000
> ^^^^^^^^^^
> addr 100000000 reusing pgd 201880 0000000000202063
> last_map_addr: 140000000 end: 140000000
>
> !!! and the memory allocated for this pagetable is:
> #5 [0000008000 - 000000b000] PGTABLE ==> [0000008000 - 000000b000]
> #6 [000000b000 - 000000c000] PGTABLE ==> [000000b000 - 000000c000]
> ^^^^^^^^^^^^^^^^^^^^^^^
>
> IOW, it's mapping using b000-11000, but it has only reserved b000 - c000
>
> Also, this is right in the middle of the ISA area, which seems risky.
> <<<<
>
> Bug #11237 shows the same symptom, so I'm pretty confident they're dups now.
I have marked #11313 as a duplicate of #11237. Please use the latter one from
now on.
Thanks,
Rafael
On Thu, 21 Aug 2008, Jeremy Fitzhardinge wrote:
>
> >>>>
> Some notes as I pick through all the evidence so far:
>
> - the crash is specifically because there are reserved bits set in the pmd
> - the pmd is b02a00043a6001a3 in both cases
Yes, it's corrupt, it should be
800000013a6001a3
> - the vaddr is ffff88013a600000 in the first crash, and
> ffff81013a6d1c00 in the second
> corresponding to the same large-page pmd mapping of phys page 0x13a600000
> - this maps to e820 entry
> BIOS-e820: 0000000100000000 - 0000000140000000 (usable)
> - the corresponding boot-time mapping is
>
> init_memory_mapping
> 0100000000 - 0140000000 page 2M
> kernel direct mapping tables up to 140000000 @ b000-11000
> ^^^^^^^^^^
> addr 100000000 reusing pgd 201880 0000000000202063
> last_map_addr: 140000000 end: 140000000
>
> !!! and the memory allocated for this pagetable is:
> #5 [0000008000 - 000000b000] PGTABLE ==> [0000008000 - 000000b000]
> #6 [000000b000 - 000000c000] PGTABLE ==> [000000b000 - 000000c000]
> ^^^^^^^^^^^^^^^^^^^^^^^
>
> IOW, it's mapping using b000-11000, but it has only reserved b000 - c000
>
> Also, this is right in the middle of the ISA area, which seems risky.
> <<<<
>
> Bug #11237 shows the same symptom, so I'm pretty confident they're dups now.
[ Sorry, I'm replying to #11313 even though we think it's dup of #11237. ]
Haven't you got that backwards?
My reading is that find_early_table_space set aside b000-11000 for the
worst case possible, but actually only b000-c000 was needed (because
most of the tables were already there): no problem.
Hugh Dickins wrote:
> On Thu, 21 Aug 2008, Jeremy Fitzhardinge wrote:
>
>> Some notes as I pick through all the evidence so far:
>>
>> - the crash is specifically because there are reserved bits set in the pmd
>> - the pmd is b02a00043a6001a3 in both cases
>>
>
> Yes, it's corrupt, it should be
> 800000013a6001a3
>
>
>> - the vaddr is ffff88013a600000 in the first crash, and
>> ffff81013a6d1c00 in the second
>> corresponding to the same large-page pmd mapping of phys page 0x13a600000
>> - this maps to e820 entry
>> BIOS-e820: 0000000100000000 - 0000000140000000 (usable)
>> - the corresponding boot-time mapping is
>>
>> init_memory_mapping
>> 0100000000 - 0140000000 page 2M
>> kernel direct mapping tables up to 140000000 @ b000-11000
>> ^^^^^^^^^^
>> addr 100000000 reusing pgd 201880 0000000000202063
>> last_map_addr: 140000000 end: 140000000
>>
>> !!! and the memory allocated for this pagetable is:
>> #5 [0000008000 - 000000b000] PGTABLE ==> [0000008000 - 000000b000]
>> #6 [000000b000 - 000000c000] PGTABLE ==> [000000b000 - 000000c000]
>> ^^^^^^^^^^^^^^^^^^^^^^^
>>
>> IOW, it's mapping using b000-11000, but it has only reserved b000 - c000
>>
>> Also, this is right in the middle of the ISA area, which seems risky.
>> <<<<
>>
>> Bug #11237 shows the same symptom, so I'm pretty confident they're dups now.
>>
>
> [ Sorry, I'm replying to #11313 even though we think it's dup of #11237. ]
>
> Haven't you got that backwards?
>
> My reading is that find_early_table_space set aside b000-11000 for the
> worst case possible, but actually only b000-c000 was needed (because
> most of the tables were already there): no problem.
>
Drat. I think you may be right.
J
On Thu, Aug 21, 2008 at 11:13 AM, Jeremy Fitzhardinge <[email protected]> wrote:> Rafa? Mi?ecki wrote:>> I added full dmesg 5 minutes after adding grepped:>> http://bugzilla.kernel.org/attachment.cgi?id=17331>>>> OK, I think I see the problem (pasted from bugzilla comment):>>>>>>> Some notes as I pick through all the evidence so far:>> - the crash is specifically because there are reserved bits set in the pmd> - the pmd is b02a00043a6001a3 in both cases> - the vaddr is ffff88013a600000 in the first crash, and> ffff81013a6d1c00 in the second> corresponding to the same large-page pmd mapping of phys page 0x13a600000> - this maps to e820 entry> BIOS-e820: 0000000100000000 - 0000000140000000 (usable)> - the corresponding boot-time mapping is>> init_memory_mapping> 0100000000 - 0140000000 page 2M> kernel direct mapping tables up to 140000000 @ b000-11000> ^^^^^^^^^^
this is just estimated. and worst case.
> addr 100000000 reusing pgd 201880 0000000000202063> last_map_addr: 140000000 end: 140000000>> !!! and the memory allocated for this pagetable is:> #5 [0000008000 - 000000b000] PGTABLE ==> [0000008000 - 000000b000]> #6 [000000b000 - 000000c000] PGTABLE ==> [000000b000 - 000000c000]> ^^^^^^^^^^^^^^^^^^^^^^^this is correct value used finally.>> IOW, it's mapping using b000-11000, but it has only reserved b000 - c000>> Also, this is right in the middle of the ISA area, which seems risky.> <<<<
YH????{.n?+???????+%?????ݶ??w??{.n?+????{??G?????{ay? ʇڙ?,j??f???h?????????z_??(?階?ݢj"???m??????G????????????&???~???iO???z??v?^?m???? ????????I?
On Saturday, 23 of August 2008, you wrote:
> Arrgh...I spoke too soon. It'll boot if I disable hrtimers, but I also
> have to make it use jiffies as the clocksource...so I guess we're back
> to square one. If i have hrtimers enabled, with or without
> clocksource=jiffies, I end up getting segfaults...so, I'm pretty much
> not sure what to do at this point, but relay this message to the pros.
Well, thanks for the update again.
I've added some CCs to the message, perhaps someone will have an idea what to
do next.
Thanks,
Rafafel
Adrian Bunk wrote:
> The discussion in Bugzilla whether it is a regression at all can be
> condensed to the following question:
>
> Can a struct that is part of the 2.6.26 userspace headers be defined to
> be part of an "experimental ABI" and therefore be changed?
>
It is part of the experimental ABI.
However, as I'm going to apply your patch (as being the simplest fix,
and as there is no measurable performance impact), the question is moot.
--
error compiling committee.c: too many arguments to function
On Sunday, 24 of August 2008, Martin Michlmayr wrote:
> * Rafael J. Wysocki <[email protected]> [2008-08-23 20:10]:
> > 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).
>
> Yes, this is still there.
Thanks for the update.
Rafael
On Sunday, 24 of August 2008, Jeff Garzik 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=11210
> > Subject : libata badness
> > Submitter : Kumar Gala <[email protected]>
> > Date : 2008-07-31 18:53 (24 days old)
> > References : http://marc.info/?l=linux-ide&m=121753059307310&w=4
> > Handled-By : Ben Dooks <[email protected]>
>
>
> FWIW,
>
> http://marc.info/?l=linux-kernel&m=121754161727539&w=4
>
> So IMO handled-by is Kumar?
OK
On Sunday, 24 of August 2008, Frans Pop wrote:
> On Saturday 23 August 2008, Rafael J. Wysocki wrote:
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11356
> > Subject : Linux 2.6.27-rc3 - build failure: undefined reference to
> > `.lockdep_count_forward_deps'
> > Submitter : Frans Pop <[email protected]>
> > Date : 2008-08-16 19:11 (8 days old)
> > References : http://marc.info/?l=linux-kernel&m=121891396320127&w=4
>
> Fixed as per: http://marc.info/?l=linux-kernel&m=121898767530602&w=4
> Adrian mentioned that he'd closed the bug, but apparently not.
The bug is closed now.
Thanks,
Rafael
On Sat, Aug 23, 2008 at 08:10:16PM +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=11254
> Subject : KVM: fix userspace ABI breakage
> Submitter : Adrian Bunk <[email protected]>
> Date : 21 Jul 2008 17:58:26 (0 days old)
> References : http://lkml.org/lkml/2008/7/21/197
> Handled-By : Adrian Bunk <[email protected]>
> Patch : http://lkml.org/lkml/2008/7/21/197
The discussion in Bugzilla whether it is a regression at all can be
condensed to the following question:
Can a struct that is part of the 2.6.26 userspace headers be defined to
be part of an "experimental ABI" and therefore be changed?
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
* Rafael J. Wysocki <[email protected]> [2008-08-23 20:10]:
> 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).
Yes, this is still there.
--
Martin Michlmayr
http://www.cyrius.com/
On Saturday, 23 of August 2008, 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=11355
> Subject : Regression in 2.6.27-rc2 when cross-building the kernel
> Submitter : Larry Finger <[email protected]>
> Date : 2008-08-16 2:38 (8 days old)
> References : http://marc.info/?l=linux-kernel&m=121885432118368&w=4
As I wrote in the Bugzilla, I'm seeing a related problem.
Namely, I build kernels on one box, with 'make O=<target>', then I mount
<target> on another one over NFS, 'cd' to it and try to install the kernel
modules with 'make modules_install'. This results in 'HOSTCC firmware/ihex2fw'
and 'fatal error: ...: Read-only file system'. It's readily reproducible.
Commenting out line 1130 of Makefile
("$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst")
obviously helps, so it looks like Makefile.fwinst needs fixing.
Thanks,
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=11343
> Subject : SATA Cold Boot Problems with 2.6.27-rc[23] on nVidia 680i
> Submitter : Manny Maxwell <[email protected]>
> Date : 2008-08-14 4:16 (10 days old)
> References : http://marc.info/?l=linux-kernel&m=121868782917600&w=4
hmmmm. Looking at changes between the two csets listed in the email
(623fa57..8f616cd), all of them are driver-specific and unrelated to
Manny's hardware except for
commit 2486fa561a3192bbbec39c7feef87a1e07bd6342
Author: Tejun Heo <[email protected]>
Date: Thu Jul 31 07:52:40 2008 +0900
libata: update atapi disable handling
So you could try to revert that and see what happens. But given that
small range of changes, it really seems like something else, maybe in
the PCI subsystem (random guess).
Looking at the entire kernel, nothing jumps out, either. Its mostly fs
updates (ext4, xfs), a networking update, an ARM update, and a libata
update.
Also, some reset-related fixes just went in, so re-testing the latest
-git would be helpful as well.
Jeff
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=11210
> Subject : libata badness
> Submitter : Kumar Gala <[email protected]>
> Date : 2008-07-31 18:53 (24 days old)
> References : http://marc.info/?l=linux-ide&m=121753059307310&w=4
> Handled-By : Ben Dooks <[email protected]>
FWIW,
http://marc.info/?l=linux-kernel&m=121754161727539&w=4
So IMO handled-by is Kumar?