2.6.33-rc7: Reported regressions from 2.6.32

2.6.33-rc7: Reported regressions from 2.6.32

[Rafael J. Wysocki]

[ANNOUNCEMENT:
 Maciej Rutecki has generously volunteered to work on the tracking of kernel
 regressions with me, so now there are two people doing this and I'm going
 to call us "the tracking team".  Please be friendly to Maciej, he's doing his
 best to help.  If you have any information about kernel regressions you want
 to share with us, please feel free to contact Maciej as well as me.]

This message contains a list of some regressions from 2.6.32,
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 regressions from 2.6.32, 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
  ----------------------------------------
  2010-02-07       97       27          20
  2010-02-01       85       26          21
  2010-01-24       75       29          23
  2010-01-10       55       33          21
  2009-12-29       36       34          27


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

Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15246
Subject		: BUG: Bad page state in process portageq
Submitter	: Johannes Hirte <johannes.hirte@fem.tu-ilmenau.de>
Date		: 2010-02-07 0:45 (1 days old)
References	: http://marc.info/?l=linux-kernel&m=126550356515887&w=2


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15245
Subject		: [2.6.33-rc6 fc76be4 w/ drm-radon-testing and KMS enabled] Weird JCPU times?
Submitter	: Shawn Starr <shawn.starr@rogers.com>
Date		: 2010-02-06 7:24 (2 days old)
References	: http://marc.info/?l=linux-kernel&m=126544107816889&w=2


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15207
Subject		: Pineview - only cursor on black screen visible, "GPU hung" in dmesg
Submitter	: Christian Friedemann <dawn2k@gmail.com>
Date		: 2010-02-01 20:15 (7 days old)


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15202
Subject		: lockdep warning during elevator_switch
Submitter	: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Date		: 2010-01-31 23:55 (8 days old)
References	: http://marc.info/?l=linux-kernel&m=126498212613051&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15200
Subject		: NFS problems in 2.6.33-rc6: Unknown error 526
Submitter	: J.A. Magallón <jamagallon@ono.com>
Date		: 2010-01-31 22:46 (8 days old)
References	: http://marc.info/?l=linux-kernel&m=126497800408928&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15199
Subject		: sata_nv and no /dev files
Submitter	: Bartłomiej Zimoń <uzi18@o2.pl>
Date		: 2010-01-31 23:45 (8 days old)
Message-ID	: <1f9bac08.1a5266d6.4b66012a.5a11a@o2.pl>
References	: http://marc.info/?l=linux-kernel&m=126498153112488&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15192
Subject		: netperf ~50% regression with 2.6.33-rc1, bisect to 1b9508f
Submitter	: Lin Ming <ming.m.lin@intel.com>
Date		: 2010-01-25 10:03 (14 days old)
First-Bad-Commit: http://git.kernel.org/git/linus/1b9508f6831e10d53256825de8904caa22d1ca2c
References	: http://marc.info/?l=linux-kernel&m=126441481427331&w=4
Handled-By	: Mike Galbraith <efault@gmx.de>
		  Peter Zijlstra <peterz@infradead.org>


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15177
Subject		: Asynchronous writes up to 30% slower than in previous kernel versions
Submitter	: Bart Van Assche <bart.vanassche@gmail.com>
Date		: 2010-01-30 16:38 (9 days old)


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15142
Subject		: sysfs-related lockdep warning in __blkdev_get
Submitter	: Matti Aarnio <matti.aarnio--kernel-bugzilla@zmailer.org>
Date		: 2010-01-25 13:38 (14 days old)


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15139
Subject		: e1000: transmit queue 0 timed out
Submitter	: Alexander Beregalov <a.beregalov@gmail.com>
Date		: 2010-01-23 15:37 (16 days old)
References	: http://marc.info/?l=linux-netdev&m=126426149306083&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15114
Subject		: X.org hang with [drm:i915_gem_do_execbuffer] *ERROR* in dmesg
Submitter	: Matej Laitl <strohel@gmail.com>
Date		: 2010-01-23 19:54 (16 days old)


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15076
Subject		: System panic under load with clockevents_program_event
Submitter	: okias <d.okias@gmail.com>
Date		: 2010-01-17 13:03 (22 days old)


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15044
Subject		: Much higher wakeups for "<kernel IPI> : Rescheduling interrupts" since 2.6.32.2
Submitter	: Roman Mamedov <roman@rm.pp.ru>
Date		: 2010-01-11 02:58 (28 days old)


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15043
Subject		: Display goes off with i915.powersave=1 after suspend-resume
Submitter	: Soeren Sonnenburg <sonne@debian.org>
Date		: 2010-01-10 20:09 (29 days old)
References	: http://marc.info/?l=linux-kernel&m=126315457519505&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15036
Subject		: soft lockup in dmesg after suspend/resume
Submitter	: ykzhao <yakui.zhao@intel.com>
Date		: 2010-01-04 5:36 (35 days old)
References	: http://marc.info/?l=linux-kernel&m=126258356202722&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15025
Subject		: Oops in ext4 driver
Submitter	: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date		: 2010-01-10 13:09 (29 days old)


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=14999
Subject		: possible circular locking dependency detected in rfkill at suspend
Submitter	: Christian Casteyde <casteyde.christian@free.fr>
Date		: 2010-01-06 21:52 (33 days old)


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=14950
Subject		: tbench regression with 2.6.33-rc1
Submitter	: Lin Ming <ming.m.lin@intel.com>
Date		: 2009-12-25 11:11 (45 days old)
References	: http://marc.info/?l=linux-kernel&m=126174044213172&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=14937
Subject		: WARNING: at kernel/lockdep.c:2830
Submitter	: Grant Wilson <grant.wilson@zen.co.uk>
Date		: 2009-12-27 13:35 (43 days old)
References	: http://marc.info/?l=linux-kernel&m=126192220404829&w=4


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=14792
Subject		: Misdetection of the TV output
Submitter	: Santi <santi@agolina.net>
Date		: 2009-12-12 13:28 (58 days old)
First-Bad-Commit: http://git.kernel.org/git/linus/27dfaf4f5825a119305db1bc63bef30ed400e376
Handled-By	: Zhao Yakui <yakui.zhao@intel.com>


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

Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15251
Subject		: ioctl32(mdadm:2243): Unknown cmd fd(3) cmd(800c0910){t:09;sz:12} arg(ffb7f9c4)
Submitter	: Michael S. Tsirkin <m.s.tsirkin@gmail.com>
Date		: 2010-01-30 22:02 (9 days old)
Message-ID	: <201001302302.10574.arnd@arndb.de>
References	: http://marc.info/?l=linux-kernel&m=126489038709553&w=4
Handled-By	: Arnd Bergmann <arnd@arndb.de>
Patch		: http://patchwork.kernel.org/patch/75931/


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15250
Subject		: "drm/i915: implement new pm ops" disables irq on aborted s2disk
Submitter	: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Date		: 2010-02-03 03:18 (5 days old)
First-Bad-Commit: http://git.kernel.org/git/linus/cbda12d77ea590082edb6d30bd342a67ebc459e0
Message-ID	: <4B695BA0.4000007@tuffmail.co.uk>
References	: https://lists.linux-foundation.org/pipermail/linux-pm/2010-February/024200.html
Handled-By	: Rafael J. Wysocki <rjw@sisk.pl>
Patch		: http://patchwork.kernel.org/patch/77640/


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15244
Subject		: PROBLEM: hda-intel divide by zero kernel crash in azx_position_ok()
Submitter	: Jody Bruchon <jody@nctritech.com>
Date		: 2010-02-06 0:32 (2 days old)
References	: http://marc.info/?l=linux-kernel&m=126541276028173&w=2
Handled-By	: Takashi Iwai <tiwai@suse.de>
		  Jody Bruchon <jody@nctritech.com>
Patch		: http://marc.info/?l=linux-kernel&m=126547145614070&w=2


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15196
Subject		: kmem_cache_create: duplicate cache ccid2_h
Submitter	: Heinz Diehl <htd@fancy-poultry.org>
Date		: 2010-01-30 18:33 (9 days old)
References	: http://marc.info/?l=linux-kernel&m=126487640324942&w=4
Handled-By	: Xiaotian Feng <xtfeng@gmail.com>
Patch		: http://patchwork.kernel.org/patch/77601/


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15195
Subject		: kernel BUG at include/net/netns/generic.h:41, pfkey_create+0x36/0x18b [af_key]
Submitter	: Luca Tettamanti <kronos.it@gmail.com>
Date		: 2010-01-30 13:23 (9 days old)
References	: http://marc.info/?l=linux-netdev&m=126485785004775&w=4
Handled-By	: Alexey Dobriyan <adobriyan@gmail.com>
Patch		: http://patchwork.kernel.org/patch/75891/


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15039
Subject		: leds_alix2: can't allocate I/O for GPIO
Submitter	: Arnd Hannemann <hannemann@nets.rwth-aachen.de>
Date		: 2010-01-07 10:26 (32 days old)
References	: http://marc.info/?l=linux-kernel&m=126286001106257&w=4
Handled-By	: Daniel Mack <daniel@caiaq.de>
Patch		: http://patchwork.kernel.org/patch/72006/


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=14949
Subject		: drm_vm.c:drm_mmap: possible circular locking dependency detected
Submitter	: Borislav Petkov <petkovbb@googlemail.com>
Date		: 2009-12-26 9:45 (44 days old)
References	: http://marc.info/?l=linux-kernel&m=126182073616279&w=4
Handled-By	: Eric W. Biederman <ebiederm@aristanetworks.com>
Patch		: http://patchwork.kernel.org/patch/70461/


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 2.6.32,
unresolved as well as resolved, at:

http://bugzilla.kernel.org/show_bug.cgi?id=14885

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

Thanks!

Re: [Bug #15196] kmem_cache_create: duplicate cache ccid2_h

[Rafael J. Wysocki]

On Monday 08 February 2010, Heinz Diehl wrote:
> On 08.02.2010, Rafael J. Wysocki wrote: 
> 
> > This message has been generated automatically as a part of a summary report
> > of recent regressions.
> > 
> > The following bug entry is on the current list of known regressions
> > from 2.6.32.  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=15196
> > Subject		: kmem_cache_create: duplicate cache ccid2_h
> > Submitter	: Heinz Diehl <htd-HjJ2MNWy62to6+H+lsi3Gti2O/JbrIOy@public.gmane.org>
> > Date		: 2010-01-30 18:33 (9 days old)
> > References	: http://marc.info/?l=linux-kernel&m=126487640324942&w=4
> > Handled-By	: Xiaotian Feng <xtfeng-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > Patch		: http://patchwork.kernel.org/patch/77601/
> 
> Yes, it's still present in -rc7.

Hmm.  The bug is in net/dccp/ccid.c, so it looks like something for the
networking guys to merge.

Any chance to send a singed-off version of the patch do David?

Rafael

Re: [Bug #15196] kmem_cache_create: duplicate cache ccid2_h

[David Miller]

From: "Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org>
Date: Mon, 8 Feb 2010 12:04:27 +0100

> Hmm.  The bug is in net/dccp/ccid.c, so it looks like something for the
> networking guys to merge.
> 
> Any chance to send a singed-off version of the patch do David?

Fixes for this are already in my net-2.6 tree, will send them
off to Linus later today, I was waiting for some netfilter
fixes which I just received:

commit 1386be55e32a3c5d8ef4a2b243c530a7b664c02c
Author: Gerrit Renker <gerrit-VsoRXqaLlyfQzY9nttDBhA@public.gmane.org>
Date:   Tue Feb 2 20:16:56 2010 +0000

    dccp: fix auto-loading of dccp(_probe)
    
    This fixes commit (38ff3e6bb987ec583268da8eb22628293095d43b) ("dccp_probe:
    Fix module load dependencies between dccp and dccp_probe", from 15 Jan).
    
    It fixes the construction of the first argument of try_then_request_module(),
    where only valid return codes from the first argument should be returned.
    
    What we do now is assign the result of register_jprobe() to ret, without
    the side effect of the comparison.
    
    Acked-by: Gerrit Renker <gerrit-VsoRXqaLlyfQzY9nttDBhA@public.gmane.org>
    Signed-off-by: Neil Horman <nhorman-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
    Signed-off-by: David S. Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>

commit 8ed030dd0aa400d18c63861c2c6deb7c38f4edde
Author: Gerrit Renker <gerrit-VsoRXqaLlyfQzY9nttDBhA@public.gmane.org>
Date:   Mon Feb 1 02:12:19 2010 +0000

    dccp: fix bug in cache allocation
    
    This fixes a bug introduced in commit de4ef86cfce60d2250111f34f8a084e769f23b16
    ("dccp: fix dccp rmmod when kernel configured to use slub", 17 Jan): the
    vsnprintf used sizeof(slab_name_fmt), which became truncated to 4 bytes, since
    slab_name_fmt is now a 4-byte pointer and no longer a 32-character array.
    
    This lead to error messages such as
     FATAL: Error inserting dccp: No buffer space available
    
     >> kernel: [ 1456.341501] kmem_cache_create: duplicate cache cci
    generated due to the truncation after the 3rd character.
    
    Fixed for the moment by introducing a symbolic constant. Tested to fix the bug.
    
    Signed-off-by: Gerrit Renker <gerrit-VsoRXqaLlyfQzY9nttDBhA@public.gmane.org>
    Acked-by: Neil Horman <nhorman-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
    Signed-off-by: David S. Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>