2010-12-19 12:46:32

by Rafael J. Wysocki

[permalink] [raw]
Subject: 2.6.37-rc6-git4: Reported regressions 2.6.35 -> 2.6.36

This message contains a list of some post-2.6.35 regressions introduced before
2.6.36, for which there are no fixes in the mainline known to the tracking team.
If any of them have been fixed already, please let us know.

If you know of any other unresolved post-2.6.35 regressions, please let us know
either and we'll add them to the list. Also, please let us 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
----------------------------------------
2010-12-19 98 28 23
2010-12-05 95 34 31
2010-11-19 92 38 34
2010-10-17 70 27 27
2010-10-10 56 16 15
2010-10-03 52 16 14
2010-09-26 46 15 13
2010-09-20 38 15 15
2010-09-12 28 14 13
2010-08-30 21 16 15


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

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=24752
Subject : Random crashes easily reproducible with make -j5 - intel i915 - kernel 2.6.36 on intel/nvidia hybrid graphics machine
Submitter : Giacomo <[email protected]>
Date : 2010-12-10 8:57 (10 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=129197146619176&w=2


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=24392
Subject : AGP aperture disabled, worked in 2.6.35
Submitter : Stephen Kitt <[email protected]>
Date : 2010-12-06 06:31 (14 days old)
First-Bad-Commit: http://git.kernel.org/linus/96576a9e1a0cdb8a43d3af5846be0948f52b4460


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=24202
Subject : [830] drm:intel_prepare_page_flip, *ERROR* Prepared flip multiple times
Submitter : mkkot <[email protected]>
Date : 2010-12-02 14:10 (18 days old)


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=24022
Subject : wireless no longer works after 1st update of 10.10 [rtl819xE:ERR in init_firmware()]
Submitter : njin <[email protected]>
Date : 2010-11-29 19:49 (21 days old)


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=23812
Subject : HAL does not provide battery information on RHEL5 and CentOS-5
Submitter : Dag Wieers <[email protected]>
Date : 2010-11-26 18:08 (24 days old)


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=23302
Subject : alsa stops working after one or more hibernate or suspend cycles
Submitter : Werner Lemberg <[email protected]>
Date : 2010-11-19 16:21 (31 days old)


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=22842
Subject : iwl3945 suddenly stops working
Submitter : Felipe Contreras <[email protected]>
Date : 2010-11-14 11:14 (36 days old)


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=22782
Subject : 2.6.36: general protection fault during lockfs lockspace removal
Submitter : [email protected] <[email protected]>
Date : 2010-11-12 12:05 (38 days old)


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=22172
Subject : alsa-util.c: snd_pcm_avail_delay() returned strange values: delay 0 is less than avail 32
Submitter : Tobias <[email protected]>
Date : 2010-11-06 09:33 (44 days old)


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=22092
Subject : Kernel v2.6.36 trouble on USB disconnect
Submitter : Ketil Froyn <[email protected]>
Date : 2010-10-29 8:05 (52 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128833956503607&w=2


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=21662
Subject : 2.6.35->2.6.36 regression, vanilla kernel panic, ppp or hrtimers crashing
Submitter : Denys Fedoryshchenko <[email protected]>
Date : 2010-10-25 9:22 (56 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128799855826011&w=2


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=21652
Subject : several problems with intel graphics since 2.6.36
Submitter : Norbert Preining <[email protected]>
Date : 2010-10-27 14:32 (54 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128818998630241&w=2


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=21402
Subject : [KVM] Noacpi Windows guest can not boot up on 32bit KVM host
Submitter : xudong <[email protected]>
Date : 2010-10-29 03:01 (52 days old)


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20332
Subject : [LogFS] [2.6.36-rc7] Kernel BUG at lib/btree.c:465!
Submitter : Prasad Joshi <[email protected]>
Date : 2010-10-12 18:56 (69 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128690910501830&w=2


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20322
Subject : 2.6.36-rc7: inconsistent lock state: inconsistent {IN-RECLAIM_FS-R} -> {RECLAIM_FS-ON-W} usage.
Submitter : Dave Jones <[email protected]>
Date : 2010-10-11 20:10 (70 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128682782828453&w=2


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20232
Subject : kworker consumes ~100% CPU on HP Elitebook 8540w running 2.6.36_rc6-git4
Submitter : Ozan Caglayan <[email protected]>
Date : 2010-10-13 06:13 (68 days old)


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=19632
Subject : 2.6.36-rc6: modprobe Not tainted warning
Submitter : Heinz Diehl <[email protected]>
Date : 2010-09-30 18:25 (81 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128587114004680&w=2


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=19392
Subject : WARNING: at drivers/net/wireless/ath/ath5k/base.c:3475 ath5k_bss_info_changed+0x44/0x168 [ath5k]()
Submitter : Justin Mattock <[email protected]>
Date : 2010-09-28 22:30 (83 days old)
Message-ID : <<[email protected]>>
References : http://marc.info/?l=linux-kernel&m=128571307018635&w=2


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=19372
Subject : 2.6.36-rc6: WARNING: at drivers/gpu/drm/radeon/radeon_fence.c:235 radeon_fence_wait+0x35a/0x3c0
Submitter : Alexey Dobriyan <[email protected]>
Date : 2010-09-29 21:29 (82 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128579579400315&w=2


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=19052
Subject : 2.6.36-rc5-git1 -- [drm:i915_report_and_clear_eir] *ERROR* EIR stuck: 0x00000010, masking
Submitter : Miles Lane <[email protected]>
Date : 2010-09-22 23:47 (89 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128519926626322&w=2


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=17121
Subject : Two blank rectangles more than 10 cm long when booting
Submitter : Eric Valette <[email protected]>
Date : 2010-08-26 17:24 (116 days old)


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=17061
Subject : 2.6.36-rc1 on zaurus: bluetooth regression
Submitter : Pavel Machek <[email protected]>
Date : 2010-08-21 15:24 (121 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128240433828087&w=2


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=16951
Subject : hackbench regression with 2.6.36-rc1
Submitter : Zhang, Yanmin <[email protected]>
Date : 2010-08-18 6:18 (124 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128211235904910&w=2


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

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=21092
Subject : Kernel 2.6.36 Bug during quotaon on reiserfs
Submitter : <[email protected]>
Date : 2010-10-24 16:57 (57 days old)
Handled-By : Jan Kara <[email protected]>
Patch : https://bugzilla.kernel.org/attachment.cgi?id=35292


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20462
Subject : 2.6.36-rc7-git2 - panic/GPF: e1000e/vlans?
Submitter : Nikola Ciprich <[email protected]>
Date : 2010-10-15 7:10 (66 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128712984831303&w=2
Handled-By : Jesse Gross <[email protected]>
Patch : http://www.spinics.net/lists/netdev/msg146227.html


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20342
Subject : [LogFS] [2.6.36-rc7] Deadlock in logfs_get_wblocks, hold and wait on same lock super->s_write_mutex
Submitter : Prasad Joshi <[email protected]>
Date : 2010-10-13 9:49 (68 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128696335024718&w=2
Patch : https://patchwork.kernel.org/patch/328682/


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20162
Subject : [LogFS][2.6.36.rc7+] Kernel BUG at readwrite.c:1193
Submitter : Prasad Joshi <[email protected]>
Date : 2010-10-10 17:44 (71 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128673196203340&w=2
Handled-By : Prasad Gajanan Joshi <[email protected]>
Patch : https://bugzilla.kernel.org/show_bug.cgi?id=20162#c1


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=16971
Subject : qla4xxx compile failure on 32-bit PowerPC: missing readq and writeq
Submitter : Meelis Roos <[email protected]>
Date : 2010-08-19 21:03 (123 days old)
Message-ID : <<<[email protected]>>>
References : http://marc.info/?l=linux-kernel&m=128225184900892&w=2
Patch : http://marc.info/?l=linux-scsi&m=128590267608876&w=2


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 introduced
between 2.6.35 and 2.6.36, unresolved as well as resolved, at:

http://bugzilla.kernel.org/show_bug.cgi?id=16444

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

Thanks!


2010-12-19 12:46:38

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #16951] hackbench regression with 2.6.36-rc1

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=16951
Subject : hackbench regression with 2.6.36-rc1
Submitter : Zhang, Yanmin <[email protected]>
Date : 2010-08-18 6:18 (124 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128211235904910&w=2

2010-12-19 12:55:58

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #19392] WARNING: at drivers/net/wireless/ath/ath5k/base.c:3475 ath5k_bss_info_changed+0x44/0x168 [ath5k]()

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=19392
Subject : WARNING: at drivers/net/wireless/ath/ath5k/base.c:3475 ath5k_bss_info_changed+0x44/0x168 [ath5k]()
Submitter : Justin Mattock <[email protected]>
Date : 2010-09-28 22:30 (83 days old)
Message-ID : <<[email protected]>>
References : http://marc.info/?l=linux-kernel&m=128571307018635&w=2

2010-12-19 12:56:19

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #20162] [LogFS][2.6.36.rc7+] Kernel BUG at readwrite.c:1193

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20162
Subject : [LogFS][2.6.36.rc7+] Kernel BUG at readwrite.c:1193
Submitter : Prasad Joshi <[email protected]>
Date : 2010-10-10 17:44 (71 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128673196203340&w=2
Handled-By : Prasad Gajanan Joshi <[email protected]>
Patch : https://bugzilla.kernel.org/show_bug.cgi?id=20162#c1

2010-12-19 12:56:18

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #19632] 2.6.36-rc6: modprobe Not tainted warning

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=19632
Subject : 2.6.36-rc6: modprobe Not tainted warning
Submitter : Heinz Diehl <[email protected]>
Date : 2010-09-30 18:25 (81 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128587114004680&w=2

2010-12-19 12:55:59

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #17061] 2.6.36-rc1 on zaurus: bluetooth regression

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=17061
Subject : 2.6.36-rc1 on zaurus: bluetooth regression
Submitter : Pavel Machek <[email protected]>
Date : 2010-08-21 15:24 (121 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128240433828087&w=2

2010-12-19 12:56:39

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #21652] several problems with intel graphics since 2.6.36

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=21652
Subject : several problems with intel graphics since 2.6.36
Submitter : Norbert Preining <[email protected]>
Date : 2010-10-27 14:32 (54 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128818998630241&w=2

2010-12-19 12:56:47

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #22092] Kernel v2.6.36 trouble on USB disconnect

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=22092
Subject : Kernel v2.6.36 trouble on USB disconnect
Submitter : Ketil Froyn <[email protected]>
Date : 2010-10-29 8:05 (52 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128833956503607&w=2

2010-12-19 12:57:05

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #24022] wireless no longer works after 1st update of 10.10 [rtl819xE:ERR in init_firmware()]

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=24022
Subject : wireless no longer works after 1st update of 10.10 [rtl819xE:ERR in init_firmware()]
Submitter : njin <[email protected]>
Date : 2010-11-29 19:49 (21 days old)

2010-12-19 12:57:18

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #24752] Random crashes easily reproducible with make -j5 - intel i915 - kernel 2.6.36 on intel/nvidia hybrid graphics machine

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=24752
Subject : Random crashes easily reproducible with make -j5 - intel i915 - kernel 2.6.36 on intel/nvidia hybrid graphics machine
Submitter : Giacomo <[email protected]>
Date : 2010-12-10 8:57 (10 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=129197146619176&w=2

2010-12-19 12:57:00

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #24202] [830] drm:intel_prepare_page_flip, *ERROR* Prepared flip multiple times

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=24202
Subject : [830] drm:intel_prepare_page_flip, *ERROR* Prepared flip multiple times
Submitter : mkkot <[email protected]>
Date : 2010-12-02 14:10 (18 days old)

2010-12-19 12:57:03

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #24392] AGP aperture disabled, worked in 2.6.35

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=24392
Subject : AGP aperture disabled, worked in 2.6.35
Submitter : Stephen Kitt <[email protected]>
Date : 2010-12-06 06:31 (14 days old)
First-Bad-Commit: http://git.kernel.org/linus/96576a9e1a0cdb8a43d3af5846be0948f52b4460

2010-12-19 12:56:59

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #22782] 2.6.36: general protection fault during lockfs lockspace removal

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=22782
Subject : 2.6.36: general protection fault during lockfs lockspace removal
Submitter : [email protected] <[email protected]>
Date : 2010-11-12 12:05 (38 days old)

2010-12-19 12:57:59

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #23812] HAL does not provide battery information on RHEL5 and CentOS-5

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=23812
Subject : HAL does not provide battery information on RHEL5 and CentOS-5
Submitter : Dag Wieers <[email protected]>
Date : 2010-11-26 18:08 (24 days old)

2010-12-19 12:56:56

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #22842] iwl3945 suddenly stops working

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=22842
Subject : iwl3945 suddenly stops working
Submitter : Felipe Contreras <[email protected]>
Date : 2010-11-14 11:14 (36 days old)

2010-12-19 12:58:13

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #23302] alsa stops working after one or more hibernate or suspend cycles

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=23302
Subject : alsa stops working after one or more hibernate or suspend cycles
Submitter : Werner Lemberg <[email protected]>
Date : 2010-11-19 16:21 (31 days old)

2010-12-19 12:58:37

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #22172] alsa-util.c: snd_pcm_avail_delay() returned strange values: delay 0 is less than avail 32

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=22172
Subject : alsa-util.c: snd_pcm_avail_delay() returned strange values: delay 0 is less than avail 32
Submitter : Tobias <[email protected]>
Date : 2010-11-06 09:33 (44 days old)

2010-12-19 12:58:51

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #21662] 2.6.35->2.6.36 regression, vanilla kernel panic, ppp or hrtimers crashing

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=21662
Subject : 2.6.35->2.6.36 regression, vanilla kernel panic, ppp or hrtimers crashing
Submitter : Denys Fedoryshchenko <[email protected]>
Date : 2010-10-25 9:22 (56 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128799855826011&w=2

2010-12-19 12:59:04

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #20342] [LogFS] [2.6.36-rc7] Deadlock in logfs_get_wblocks, hold and wait on same lock super->s_write_mutex

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20342
Subject : [LogFS] [2.6.36-rc7] Deadlock in logfs_get_wblocks, hold and wait on same lock super->s_write_mutex
Submitter : Prasad Joshi <[email protected]>
Date : 2010-10-13 9:49 (68 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128696335024718&w=2
Patch : https://patchwork.kernel.org/patch/328682/

2010-12-19 12:56:15

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #21092] Kernel 2.6.36 Bug during quotaon on reiserfs

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=21092
Subject : Kernel 2.6.36 Bug during quotaon on reiserfs
Submitter : <[email protected]>
Date : 2010-10-24 16:57 (57 days old)
Handled-By : Jan Kara <[email protected]>
Patch : https://bugzilla.kernel.org/attachment.cgi?id=35292

2010-12-19 12:59:30

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #21402] [KVM] Noacpi Windows guest can not boot up on 32bit KVM host

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=21402
Subject : [KVM] Noacpi Windows guest can not boot up on 32bit KVM host
Submitter : xudong <[email protected]>
Date : 2010-10-29 03:01 (52 days old)

2010-12-19 12:59:25

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #20322] 2.6.36-rc7: inconsistent lock state: inconsistent {IN-RECLAIM_FS-R} -> {RECLAIM_FS-ON-W} usage.

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20322
Subject : 2.6.36-rc7: inconsistent lock state: inconsistent {IN-RECLAIM_FS-R} -> {RECLAIM_FS-ON-W} usage.
Submitter : Dave Jones <[email protected]>
Date : 2010-10-11 20:10 (70 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128682782828453&w=2

2010-12-19 12:59:28

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #20232] kworker consumes ~100% CPU on HP Elitebook 8540w running 2.6.36_rc6-git4

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20232
Subject : kworker consumes ~100% CPU on HP Elitebook 8540w running 2.6.36_rc6-git4
Submitter : Ozan Caglayan <[email protected]>
Date : 2010-10-13 06:13 (68 days old)

2010-12-19 13:00:06

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #20462] 2.6.36-rc7-git2 - panic/GPF: e1000e/vlans?

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20462
Subject : 2.6.36-rc7-git2 - panic/GPF: e1000e/vlans?
Submitter : Nikola Ciprich <[email protected]>
Date : 2010-10-15 7:10 (66 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128712984831303&w=2
Handled-By : Jesse Gross <[email protected]>
Patch : http://www.spinics.net/lists/netdev/msg146227.html

2010-12-19 13:00:47

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #20332] [LogFS] [2.6.36-rc7] Kernel BUG at lib/btree.c:465!

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20332
Subject : [LogFS] [2.6.36-rc7] Kernel BUG at lib/btree.c:465!
Submitter : Prasad Joshi <[email protected]>
Date : 2010-10-12 18:56 (69 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128690910501830&w=2

2010-12-19 12:55:57

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #19372] 2.6.36-rc6: WARNING: at drivers/gpu/drm/radeon/radeon_fence.c:235 radeon_fence_wait+0x35a/0x3c0

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=19372
Subject : 2.6.36-rc6: WARNING: at drivers/gpu/drm/radeon/radeon_fence.c:235 radeon_fence_wait+0x35a/0x3c0
Submitter : Alexey Dobriyan <[email protected]>
Date : 2010-09-29 21:29 (82 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128579579400315&w=2

2010-12-19 13:01:20

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #16971] qla4xxx compile failure on 32-bit PowerPC: missing readq and writeq

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=16971
Subject : qla4xxx compile failure on 32-bit PowerPC: missing readq and writeq
Submitter : Meelis Roos <[email protected]>
Date : 2010-08-19 21:03 (123 days old)
Message-ID : <<<[email protected]>>>
References : http://marc.info/?l=linux-kernel&m=128225184900892&w=2
Patch : http://marc.info/?l=linux-scsi&m=128590267608876&w=2

2010-12-19 13:01:18

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #17121] Two blank rectangles more than 10 cm long when booting

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=17121
Subject : Two blank rectangles more than 10 cm long when booting
Submitter : Eric Valette <[email protected]>
Date : 2010-08-26 17:24 (116 days old)

2010-12-19 13:01:48

by Rafael J. Wysocki

[permalink] [raw]
Subject: [Bug #19052] 2.6.36-rc5-git1 -- [drm:i915_report_and_clear_eir] *ERROR* EIR stuck: 0x00000010, masking

This message has been generated automatically as a part of a report
of regressions introduced between 2.6.35 and 2.6.36.

The following bug entry is on the current list of known regressions
introduced between 2.6.35 and 2.6.36. Please verify if it still should
be listed and let the tracking team know (either way).


Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=19052
Subject : 2.6.36-rc5-git1 -- [drm:i915_report_and_clear_eir] *ERROR* EIR stuck: 0x00000010, masking
Submitter : Miles Lane <[email protected]>
Date : 2010-09-22 23:47 (89 days old)
Message-ID : <[email protected]>
References : http://marc.info/?l=linux-kernel&m=128519926626322&w=2

2010-12-19 13:14:20

by Denys Fedoryshchenko

[permalink] [raw]
Subject: Re: [Bug #21662] 2.6.35->2.6.36 regression, vanilla kernel panic, ppp or hrtimers crashing

On Sunday 19 December 2010 14:50:26 Rafael J. Wysocki wrote:
> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.35 and 2.6.36.
>
> The following bug entry is on the current list of known regressions
> introduced between 2.6.35 and 2.6.36. Please verify if it still should
> be listed and let the tracking team know (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=21662
> Subject : 2.6.35->2.6.36 regression, vanilla kernel panic, ppp or
hrtimers
> crashing Submitter : Denys Fedoryshchenko <[email protected]>
> Date : 2010-10-25 9:22 (56 days old)
> Message-ID : <[email protected]>
> References : http://marc.info/?l=linux-kernel&m=128799855826011&w=2
It is fixed, i guess for 2.6.37, patch works for me.

http://marc.info/?l=linux-netdev&m=129219516718477&w=2
Andrej Ota (1):
pppoe.c: Fix kernel panic caused by __pppoe_xmit

2010-12-19 13:40:45

by Rafael J. Wysocki

[permalink] [raw]
Subject: Re: [Bug #21662] 2.6.35->2.6.36 regression, vanilla kernel panic, ppp or hrtimers crashing

On Sunday, December 19, 2010, Denys Fedoryshchenko wrote:
> On Sunday 19 December 2010 14:50:26 Rafael J. Wysocki wrote:
> > This message has been generated automatically as a part of a report
> > of regressions introduced between 2.6.35 and 2.6.36.
> >
> > The following bug entry is on the current list of known regressions
> > introduced between 2.6.35 and 2.6.36. Please verify if it still should
> > be listed and let the tracking team know (either way).
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=21662
> > Subject : 2.6.35->2.6.36 regression, vanilla kernel panic, ppp or
> hrtimers
> > crashing Submitter : Denys Fedoryshchenko <[email protected]>
> > Date : 2010-10-25 9:22 (56 days old)
> > Message-ID : <[email protected]>
> > References : http://marc.info/?l=linux-kernel&m=128799855826011&w=2
> It is fixed, i guess for 2.6.37, patch works for me.
>
> http://marc.info/?l=linux-netdev&m=129219516718477&w=2
> Andrej Ota (1):
> pppoe.c: Fix kernel panic caused by __pppoe_xmit

Thanks, closing.

Rafael

2010-12-19 13:54:56

by Heinz Diehl

[permalink] [raw]
Subject: Re: [Bug #19632] 2.6.36-rc6: modprobe Not tainted warning

On 19.12.2010, Rafael J. Wysocki wrote:

> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.35 and 2.6.36.
>
> The following bug entry is on the current list of known regressions
> introduced between 2.6.35 and 2.6.36. Please verify if it still should
> be listed and let the tracking team know (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=19632
> Subject : 2.6.36-rc6: modprobe Not tainted warning
> Submitter : Heinz Diehl <[email protected]>
> Date : 2010-09-30 18:25 (81 days old)
> Message-ID : <[email protected]>
> References : http://marc.info/?l=linux-kernel&m=128587114004680&w=2

There's a fix pending which should have made it into 2.6.37:
https://patchwork.kernel.org/patch/240661/

At least, it fixes the problem for me.


2010-12-19 13:59:32

by Heinz Diehl

[permalink] [raw]
Subject: Re: [Bug #22092] Kernel v2.6.36 trouble on USB disconnect

On 19.12.2010, Rafael J. Wysocki wrote:

> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.35 and 2.6.36.
>
> The following bug entry is on the current list of known regressions
> introduced between 2.6.35 and 2.6.36. Please verify if it still should
> be listed and let the tracking team know (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=22092
> Subject : Kernel v2.6.36 trouble on USB disconnect
> Submitter : Ketil Froyn <[email protected]>
> Date : 2010-10-29 8:05 (52 days old)
> Message-ID : <[email protected]>
> References : http://marc.info/?l=linux-kernel&m=128833956503607&w=2

I guess this may be a duplicate of this one:
http://bugzilla.kernel.org/show_bug.cgi?id=24722

2010-12-19 14:44:02

by Rafael J. Wysocki

[permalink] [raw]
Subject: Re: [Bug #19632] 2.6.36-rc6: modprobe Not tainted warning

On Sunday, December 19, 2010, Heinz Diehl wrote:
> On 19.12.2010, Rafael J. Wysocki wrote:
>
> > This message has been generated automatically as a part of a report
> > of regressions introduced between 2.6.35 and 2.6.36.
> >
> > The following bug entry is on the current list of known regressions
> > introduced between 2.6.35 and 2.6.36. Please verify if it still should
> > be listed and let the tracking team know (either way).
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=19632
> > Subject : 2.6.36-rc6: modprobe Not tainted warning
> > Submitter : Heinz Diehl <[email protected]>
> > Date : 2010-09-30 18:25 (81 days old)
> > Message-ID : <[email protected]>
> > References : http://marc.info/?l=linux-kernel&m=128587114004680&w=2
>
> There's a fix pending which should have made it into 2.6.37:
> https://patchwork.kernel.org/patch/240661/
>
> At least, it fixes the problem for me.

This patch is in the current Linus' tree. Closing.

Thanks,
Rafael

2010-12-19 14:50:56

by Rafael J. Wysocki

[permalink] [raw]
Subject: Re: [Bug #22092] Kernel v2.6.36 trouble on USB disconnect

On Sunday, December 19, 2010, Heinz Diehl wrote:
> On 19.12.2010, Rafael J. Wysocki wrote:
>
> > This message has been generated automatically as a part of a report
> > of regressions introduced between 2.6.35 and 2.6.36.
> >
> > The following bug entry is on the current list of known regressions
> > introduced between 2.6.35 and 2.6.36. Please verify if it still should
> > be listed and let the tracking team know (either way).
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=22092
> > Subject : Kernel v2.6.36 trouble on USB disconnect
> > Submitter : Ketil Froyn <[email protected]>
> > Date : 2010-10-29 8:05 (52 days old)
> > Message-ID : <[email protected]>
> > References : http://marc.info/?l=linux-kernel&m=128833956503607&w=2
>
> I guess this may be a duplicate of this one:
> http://bugzilla.kernel.org/show_bug.cgi?id=24722

Well, let's assume so.

Rafael

2010-12-19 19:44:22

by Jesse Gross

[permalink] [raw]
Subject: Re: [Bug #20462] 2.6.36-rc7-git2 - panic/GPF: e1000e/vlans?

On Sun, Dec 19, 2010 at 4:50 AM, Rafael J. Wysocki <[email protected]> wrote:
> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.35 and 2.6.36.
>
> The following bug entry is on the current list of known regressions
> introduced between 2.6.35 and 2.6.36. ?Please verify if it still should
> be listed and let the tracking team know (either way).
>
>
> Bug-Entry ? ? ? : http://bugzilla.kernel.org/show_bug.cgi?id=20462
> Subject ? ? ? ? : 2.6.36-rc7-git2 - panic/GPF: e1000e/vlans?
> Submitter ? ? ? : Nikola Ciprich <[email protected]>
> Date ? ? ? ? ? ?: 2010-10-15 7:10 (66 days old)
> Message-ID ? ? ?: <[email protected]>
> References ? ? ?: http://marc.info/?l=linux-kernel&m=128712984831303&w=2
> Handled-By ? ? ?: Jesse Gross <[email protected]>
> Patch ? ? ? ? ? : http://www.spinics.net/lists/netdev/msg146227.html

Fixed in 2.6.36.2.

2010-12-19 21:03:17

by Rafael J. Wysocki

[permalink] [raw]
Subject: Re: [Bug #20462] 2.6.36-rc7-git2 - panic/GPF: e1000e/vlans?

On Sunday, December 19, 2010, Jesse Gross wrote:
> On Sun, Dec 19, 2010 at 4:50 AM, Rafael J. Wysocki <[email protected]> wrote:
> > This message has been generated automatically as a part of a report
> > of regressions introduced between 2.6.35 and 2.6.36.
> >
> > The following bug entry is on the current list of known regressions
> > introduced between 2.6.35 and 2.6.36. Please verify if it still should
> > be listed and let the tracking team know (either way).
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20462
> > Subject : 2.6.36-rc7-git2 - panic/GPF: e1000e/vlans?
> > Submitter : Nikola Ciprich <[email protected]>
> > Date : 2010-10-15 7:10 (66 days old)
> > Message-ID : <[email protected]>
> > References : http://marc.info/?l=linux-kernel&m=128712984831303&w=2
> > Handled-By : Jesse Gross <[email protected]>
> > Patch : http://www.spinics.net/lists/netdev/msg146227.html
>
> Fixed in 2.6.36.2.

Thanks, closing.

Do you know the commit that fixed it?

Rafael

2010-12-19 23:21:48

by Jesse Gross

[permalink] [raw]
Subject: Re: [Bug #20462] 2.6.36-rc7-git2 - panic/GPF: e1000e/vlans?

On Sun, Dec 19, 2010 at 1:02 PM, Rafael J. Wysocki <[email protected]> wrote:
> On Sunday, December 19, 2010, Jesse Gross wrote:
>> On Sun, Dec 19, 2010 at 4:50 AM, Rafael J. Wysocki <[email protected]> wrote:
>> > This message has been generated automatically as a part of a report
>> > of regressions introduced between 2.6.35 and 2.6.36.
>> >
>> > The following bug entry is on the current list of known regressions
>> > introduced between 2.6.35 and 2.6.36. ?Please verify if it still should
>> > be listed and let the tracking team know (either way).
>> >
>> >
>> > Bug-Entry ? ? ? : http://bugzilla.kernel.org/show_bug.cgi?id=20462
>> > Subject ? ? ? ? : 2.6.36-rc7-git2 - panic/GPF: e1000e/vlans?
>> > Submitter ? ? ? : Nikola Ciprich <[email protected]>
>> > Date ? ? ? ? ? ?: 2010-10-15 7:10 (66 days old)
>> > Message-ID ? ? ?: <[email protected]>
>> > References ? ? ?: http://marc.info/?l=linux-kernel&m=128712984831303&w=2
>> > Handled-By ? ? ?: Jesse Gross <[email protected]>
>> > Patch ? ? ? ? ? : http://www.spinics.net/lists/netdev/msg146227.html
>>
>> Fixed in 2.6.36.2.
>
> Thanks, closing.
>
> Do you know the commit that fixed it?

1b7cd15c8c89f5c26dc525d985e45c9bd9265fe2

Thanks.

2010-12-20 07:25:10

by Justin P. Mattock

[permalink] [raw]
Subject: Re: [Bug #19392] WARNING: at drivers/net/wireless/ath/ath5k/base.c:3475 ath5k_bss_info_changed+0x44/0x168 [ath5k]()

On Sun, Dec 19, 2010 at 4:50 AM, Rafael J. Wysocki <[email protected]> wrote:
> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.35 and 2.6.36.
>
> The following bug entry is on the current list of known regressions
> introduced between 2.6.35 and 2.6.36. ?Please verify if it still should
> be listed and let the tracking team know (either way).
>
>
> Bug-Entry ? ? ? : http://bugzilla.kernel.org/show_bug.cgi?id=19392
> Subject ? ? ? ? : WARNING: at drivers/net/wireless/ath/ath5k/base.c:3475 ath5k_bss_info_changed+0x44/0x168 [ath5k]()
> Submitter ? ? ? : Justin Mattock <[email protected]>
> Date ? ? ? ? ? ?: 2010-09-28 22:30 (83 days old)
> Message-ID ? ? ?: <<[email protected]>>
> References ? ? ?: http://marc.info/?l=linux-kernel&m=128571307018635&w=2
>
>
>

yep.. still here with the latest Mainline

--
Justin P. Mattock

2010-12-20 10:36:01

by Peter Zijlstra

[permalink] [raw]
Subject: Re: [Bug #20232] kworker consumes ~100% CPU on HP Elitebook 8540w running 2.6.36_rc6-git4

On Sun, 2010-12-19 at 13:50 +0100, Rafael J. Wysocki wrote:
> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.35 and 2.6.36.
>
> The following bug entry is on the current list of known regressions
> introduced between 2.6.35 and 2.6.36. Please verify if it still should
> be listed and let the tracking team know (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20232
> Subject : kworker consumes ~100% CPU on HP Elitebook 8540w running 2.6.36_rc6-git4
> Submitter : Ozan Caglayan <[email protected]>
> Date : 2010-10-13 06:13 (68 days old)

I'd be thinking that kworker going wonky is something for Tejun to have
a look at.. Anyway, is it still relevant for current kernels?

2010-12-20 16:47:18

by Tejun Heo

[permalink] [raw]
Subject: Re: [Bug #20232] kworker consumes ~100% CPU on HP Elitebook 8540w running 2.6.36_rc6-git4

Hello,

On 12/20/2010 11:35 AM, Peter Zijlstra wrote:
> On Sun, 2010-12-19 at 13:50 +0100, Rafael J. Wysocki wrote:
>> This message has been generated automatically as a part of a report
>> of regressions introduced between 2.6.35 and 2.6.36.
>>
>> The following bug entry is on the current list of known regressions
>> introduced between 2.6.35 and 2.6.36. Please verify if it still should
>> be listed and let the tracking team know (either way).
>>
>>
>> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20232
>> Subject : kworker consumes ~100% CPU on HP Elitebook 8540w running 2.6.36_rc6-git4
>> Submitter : Ozan Caglayan <[email protected]>
>> Date : 2010-10-13 06:13 (68 days old)
>
> I'd be thinking that kworker going wonky is something for Tejun to have
> a look at.. Anyway, is it still relevant for current kernels?

It looks like the work is scheduled in loop, so the kworker acting out
seems to be the symptom of the problem not the cause. Looks like
Rafael already has a proper fix on mind, so...

Thanks.

--
tejun

2010-12-20 19:15:14

by Bjorn Helgaas

[permalink] [raw]
Subject: Re: [Bug #24392] AGP aperture disabled, worked in 2.6.35

> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=24392
> First-Bad-Commit: http://git.kernel.org/linus/96576a9e1a0cdb8a43d3af5846be0948f52b4460

>From broken dmesg (https://bugzilla.kernel.org/attachment.cgi?id=39092):

pci 0000:00:00.0: reg 10: [mem 0xf0000000-0xf7ffffff pref]
pci 0000:00:1f.1: reg 24: [mem 0x00000000-0x000003ff]
pci 0000:00:1e.0: PCI bridge to [bus 02-02] (subtractive decode)
pci 0000:00:1e.0: bridge window [mem 0xef000000-0xfbffffff]
pci 0000:00:00.0: address space collision: [mem 0xf0000000-0xf7ffffff pref] conflicts with PCI Bus 0000:02 [mem 0xef000000-0xfbffffff]
pci 0000:00:1f.1: BAR 5: assigned [mem 0xc0000000-0xc00003ff]
agpgart-intel 0000:00:00.0: device not available (can't reserve [mem 0x00000000-0x07ffffff pref])

The conflict between the AGP 00:00.0 BAR 0 and the 00:1e.0 bridge window
looks real, so reassigning the AGP BAR looks like the right thing to do.
We assign 00:1f.1 BAR 5 in the pcibios_assign_resources() path, and
I think we would assign the AGP BAR there, too, except that the class
code of 00:00.0 is probably 0x000600 (PCI_CLASS_BRIDGE_HOST), and we
explicitly ignore host bridges in __dev_sort_resources(), so it's up
to the driver to catch this and assign it explicitly before calling
pci_enable_device().

That's kind of ugly because it's an exception to the normal "call
pci_enable_device() first" rule, and it leads to bogus "conflicts"
like this:

pnp 00:0d: disabling [mem 0x00000000-0x0009ffff] because it overlaps 0000:00:00.0 BAR 0 [mem 0x00000000-0x07ffffff pref]

but I think we're stuck with it for now, and the simplest solution
is to just revert 96576a9e1a.

Here's the old commit that made us ignore host bridge BARs:
http://git.kernel.org/?p=linux/kernel/git/torvalds/old-2.6-bkcvs.git;a=commitdiff;h=1d6f81a248eb2febbe24892fa4d54db382a1286c

2004/12/17 13:44:31-08:00 macro
[PATCH] PCI: Don't touch BARs of host bridges

BARs of host bridges often have special meaning and AFAIK are best left
to be setup by the firmware or system-specific startup code and kept
intact by the generic resource handler. For example a couple of host
bridges used for MIPS processors interpret BARs as target-mode decoders
for accessing host memory by PCI masters (which is quite reasonable).
For them it's desirable to keep their decoded address range overlapping
with the host RAM for simplicity if nothing else (I can imagine running
out of address space with lots of memory and 32-bit PCI with no DAC
support in the participating devices).

This is already the case with the i386 and ppc platform-specific PCI
resource allocators. Please consider the following change for the generic
allocator. Currently we have a pile of hacks implemented for host bridges
to be left untouched and I'd be pleased to remove them.

From: "Maciej W. Rozycki" <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

2010-12-20 20:45:15

by Rafael J. Wysocki

[permalink] [raw]
Subject: Re: [Bug #19392] WARNING: at drivers/net/wireless/ath/ath5k/base.c:3475 ath5k_bss_info_changed+0x44/0x168 [ath5k]()

On Monday, December 20, 2010, Justin Mattock wrote:
> On Sun, Dec 19, 2010 at 4:50 AM, Rafael J. Wysocki <[email protected]> wrote:
> > This message has been generated automatically as a part of a report
> > of regressions introduced between 2.6.35 and 2.6.36.
> >
> > The following bug entry is on the current list of known regressions
> > introduced between 2.6.35 and 2.6.36. Please verify if it still should
> > be listed and let the tracking team know (either way).
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=19392
> > Subject : WARNING: at drivers/net/wireless/ath/ath5k/base.c:3475 ath5k_bss_info_changed+0x44/0x168 [ath5k]()
> > Submitter : Justin Mattock <[email protected]>
> > Date : 2010-09-28 22:30 (83 days old)
> > Message-ID : <<[email protected]>>
> > References : http://marc.info/?l=linux-kernel&m=128571307018635&w=2
> >
> >
> >
>
> yep.. still here with the latest Mainline

Thanks for the update.

Rafael

2010-12-20 20:56:58

by Rafael J. Wysocki

[permalink] [raw]
Subject: Re: [Bug #20232] kworker consumes ~100% CPU on HP Elitebook 8540w running 2.6.36_rc6-git4

On Monday, December 20, 2010, Tejun Heo wrote:
> Hello,
>
> On 12/20/2010 11:35 AM, Peter Zijlstra wrote:
> > On Sun, 2010-12-19 at 13:50 +0100, Rafael J. Wysocki wrote:
> >> This message has been generated automatically as a part of a report
> >> of regressions introduced between 2.6.35 and 2.6.36.
> >>
> >> The following bug entry is on the current list of known regressions
> >> introduced between 2.6.35 and 2.6.36. Please verify if it still should
> >> be listed and let the tracking team know (either way).
> >>
> >>
> >> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20232
> >> Subject : kworker consumes ~100% CPU on HP Elitebook 8540w running 2.6.36_rc6-git4
> >> Submitter : Ozan Caglayan <[email protected]>
> >> Date : 2010-10-13 06:13 (68 days old)
> >
> > I'd be thinking that kworker going wonky is something for Tejun to have
> > a look at.. Anyway, is it still relevant for current kernels?
>
> It looks like the work is scheduled in loop, so the kworker acting out
> seems to be the symptom of the problem not the cause. Looks like
> Rafael already has a proper fix on mind, so...

Rather, something that _might_ work.

I'm quite confident that this is a BIOS issue. Apparently, the BIOS tells us
we can control PCI Express hotplug, but then it tries to do that itself via
ACPI at the same time and that leads to a GPE storm. We may try to poke the
BIOS a bit differently than we do right now, but whether or not it helps is
to be seen.

Also, we can try to handle both ACPI-based and native PCIe hotplug
simultaneously at the same port, but that's going to be tricky.

We still can use DMI-based blacklisting as the last resort.

Thanks,
Rafael

2010-12-21 07:10:50

by Stephen Kitt

[permalink] [raw]
Subject: Re: [Bug #24392] AGP aperture disabled, worked in 2.6.35

Hi,

On Mon, Dec 20, 2010 at 12:14:56PM -0700, Bjorn Helgaas wrote:
> That's kind of ugly because it's an exception to the normal "call
> pci_enable_device() first" rule, and it leads to bogus "conflicts"
> like this:
>
> pnp 00:0d: disabling [mem 0x00000000-0x0009ffff] because it overlaps 0000:00:00.0 BAR 0 [mem 0x00000000-0x07ffffff pref]
>
> but I think we're stuck with it for now, and the simplest solution
> is to just revert 96576a9e1a.

I'm guessing
http://git.kernel.org/linus/46cfc58a77de5fc8385ad87077f4dc14633e57a7
should also be reverted then...

Regards,

Stephen

2010-12-21 08:42:09

by Kulikov Vasiliy

[permalink] [raw]
Subject: Re: [Bug #24392] AGP aperture disabled, worked in 2.6.35

Hi,

On Mon, Dec 20, 2010 at 12:14 -0700, Bjorn Helgaas wrote:
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=24392
> > First-Bad-Commit: http://git.kernel.org/linus/96576a9e1a0cdb8a43d3af5846be0948f52b4460
...
> That's kind of ugly because it's an exception to the normal "call
> pci_enable_device() first" rule, and it leads to bogus "conflicts"
> like this:

I don't understand rationale, but if standard enable-before-use breaks
the boot then explicit comment _why_ do it is necessary here.


Thanks,

--
Vasiliy