2.6.19-rc5: known regressions

2.6.19-rc5: known regressions

[Adrian Bunk]

On Tue, Nov 07, 2006 at 06:33:44PM -0800, Linus Torvalds wrote:
>...
> The rest is really mostly one-liners (or close) to various subsystems. New 
> PCI ID's, trivial fixes, cifs, dvb, things like that. I'm feeling better 
> about this - there may be a -rc6, but maybe we don't even need one.
>...

Famous last words...  ;-)


This email lists some known regressions in 2.6.19-rc5 compared to 2.6.18.

If you find your name in the Cc header, you are either submitter of one
of the bugs, maintainer of an affectected subsystem or driver, a patch
of you caused a breakage or I'm considering you in any other way possibly
involved with one or more of these issues.

Due to the huge amount of recipients, please trim the Cc when answering.


Subject    : ThinkPad R50p: boot fail with (lapic && on_battery)
References : http://lkml.org/lkml/2006/10/31/333
Submitter  : Ernst Herzberg <earny@net4u.de>
Handled-By : Len Brown <len.brown@intel.com>
Status     : problem is being debugged


Subject    : ThinkPad T60: no screen after resume
References : http://mail.matrix.de/pipermail/linux-thinkpad/2006-November/037011.html
Submitter  : Martin Lorenz <martin@lorenz.eu.org>
Status     : unknown


Subject    : ThinkPad T60: lose ACPI events after suspend/resume
References : http://lkml.org/lkml/2006/10/10/39
Submitter  : Martin Lorenz <martin@lorenz.eu.org>
Status     : problem might be fixed by
             commit f9dadfa71bc594df09044da61d1c72701121d802


Subject    : i386: more DWARFs and strange messages
References : http://lkml.org/lkml/2006/10/29/127
Submitter  : Martin Lorenz <martin@lorenz.eu.org>
Status     : should be fixed by
             commit 4b96b1a10cb00c867103b21f0f2a6c91b705db11


Subject    : BUG: scheduling while atomic: events/0/0x00000001/4, etc..
References : http://lkml.org/lkml/2006/11/2/209
Submitter  : Paolo Ornati <ornati@fastwebnet.it>
Status     : unknown


Subject    : weird battery charge level reported
             ACPI Error method parse / execution failed
References : http://bugzilla.kernel.org/show_bug.cgi?id=7466
Submitter  : Olivier Mondoloni <olivier.mondoloni@waika9.com>
Status     : unknown


Subject    : sata-via doesn't detect anymore disks attached to VIA vt6421
References : http://bugzilla.kernel.org/show_bug.cgi?id=7255
Submitter  : Thierry Vignaud <tvignaud@mandriva.com>
Status     : unknown


Subject    : unable to rip cd
References : http://lkml.org/lkml/2006/10/13/100
Submitter  : Alex Romosan <romosan@sycorax.lbl.gov>
Status     : unknown


Subject    : x86_64: oprofile doesn't work
References : http://lkml.org/lkml/2006/10/27/3
Submitter  : Prakash Punnoor <prakash@punnoor.de>
Status     : unknown


Subject    : x86_64: NR_IRQ increase causes 11.5% slowdown
                     in lmbench's fork benchmark
References : http://lkml.org/lkml/2006/11/2/192
Submitter  : Tim Chen <tim.c.chen@linux.intel.com>
Caused-By  : Eric W. Biederman <ebiederm@xmission.com>
             commit 550f2299ac8ffaba943cf211380d3a8d3fa75301
Status     : unknown


Subject    : PCI: MMCONFIG breakage
References : http://lkml.org/lkml/2006/10/27/251
Submitter  : Jeff Chua <jeff.chua.linux@gmail.com>
Caused-By  : Andi Kleen <ak@suse.de>
             commit de09bddb9d6f96785be470c832b881e6d72d589f
Handled-By : Andi Kleen <ak@suse.de>
             Aaron Durbin <adurbin@google.com>
             Matthew Wilcox <matthew@wil.cx>
Status     : people are investigating


Subject    : SMP kernel can not generate ISA irq properly
References : http://lkml.org/lkml/2006/10/22/15
Submitter  : Komuro <komurojun-mbn@nifty.com>
Handled-By : Thomas Gleixner <tglx@linutronix.de>
Status     : Thomas is investigating


Subject    : ipath driver MCEs system on load when HT chip present
References : http://bugzilla.kernel.org/show_bug.cgi?id=7455
Submitter  : Bryan O'Sullivan <bos@serpentine.com>
Caused-By  : Eric W. Biederman <ebiederm@xmission.com>
Handled-By : Bryan O'Sullivan <bos@serpentine.com>
             Eric W. Biederman <ebiederm@xmission.com>
Status     : Bryan and Eric are working on fixing the ipath driver


Subject    : boot hang in the microcode driver
References : http://lkml.org/lkml/2006/11/6/117
Submitter  : Arjan van de Ven <arjan@linux.intel.com>
Caused-By  : Shaohua Li <shaohua.li@intel.com>
             commit a30a6a2cb0fdc2c9701d6ddfb21affeb8146c038
Handled-By : Arjan van de Ven <arjan@linux.intel.com>
Patch      : http://lkml.org/lkml/2006/11/6/117
Status     : workaround-patch available

Re: 2.6.19-rc5: known regressions

[Eric W. Biederman]

Adrian Bunk <bunk@stusta.de> writes:

> Subject    : x86_64: NR_IRQ increase causes 11.5% slowdown
>                      in lmbench's fork benchmark
> References : http://lkml.org/lkml/2006/11/2/192
> Submitter  : Tim Chen <tim.c.chen@linux.intel.com>
> Caused-By  : Eric W. Biederman <ebiederm@xmission.com>
>              commit 550f2299ac8ffaba943cf211380d3a8d3fa75301
> Status     : unknown

I'm not really certain who to cc on this one.

It appears the problem sequence is:
fork()
sched_setaffinity()

It got worse just because NR_IRQS doubled (and all of the associated
arrays doubled in size).

I haven't seen anyone reproduce this but Tim Chen, and Tim wasn't
able to root cause the problem so I believe we are going to have
this regression :(

Eric

Re: 2.6.19-rc5: known regressions

[Linus Torvalds]

On Wed, 8 Nov 2006, Eric W. Biederman wrote:
> 
> I haven't seen anyone reproduce this but Tim Chen, and Tim wasn't
> able to root cause the problem so I believe we are going to have
> this regression :(

Note that you really shouldn't look too closely at lmbench scheduling 
fluctuations. They can fluctuate a _lot_, especially under SMP, and it can 
depend on things like cache layout that has nothing to do with the 
scheduler (ie just code movement can make the lmbench numbers change).

So there are "regressions" and there are "shit happens". It can sometimes 
be hard to tell the two apart, of course ;)

		Linus

Re: 2.6.19-rc5: known regressions

[Martin Lorenz]

On Wed, Nov 08, 2006 at 09:52:35AM +0100, Adrian Bunk wrote:
> On Tue, Nov 07, 2006 at 06:33:44PM -0800, Linus Torvalds wrote:
> >...
> > The rest is really mostly one-liners (or close) to various subsystems. New 
> > PCI ID's, trivial fixes, cifs, dvb, things like that. I'm feeling better 
> > about this - there may be a -rc6, but maybe we don't even need one.
> >...
> 
> Famous last words...  ;-)
> 
> 
> This email lists some known regressions in 2.6.19-rc5 compared to 2.6.18.
[...]

compiled the latest git yesterday evening 

current kernel is 2.6.19-rc5+ieee80211+e1000-45.3+1909-g6a4abeae-dirty

Commit: 6a4abeaefae897ded6b39ed3f3a84662923e6b60
Author: Martin Lorenz <mlo@gimli.(none)> Wed, 08 Nov 2006 19:58:44 +0100

which is my e1000 patch 

Commit: 17dfbe2264b50308189de1fe4068bdffbf065dfc
Author: Martin Lorenz <mlo@gimli.(none)> Wed, 08 Nov 2006 19:58:44 +0100

which is the patch to upgrade ieee80211 to V.1.2.15 so I can use ipw3945


Commit: 48797ebd9e8b16fddcd4ef062f792314a6b9219a
Author: Linus Torvalds <torvalds@merom.osdl.org> Wed, 08 Nov 2006 10:27:54
-0800

...the version I pulled

$ cg-status
Heads:
    >master     6a4abeaefae897ded6b39ed3f3a84662923e6b60
     origin     082f2f84be5db164280483efa7eb1549d867353d


it's an X60s BTW
> 
> Subject    : ThinkPad T60: no screen after resume
> References : http://mail.matrix.de/pipermail/linux-thinkpad/2006-November/037011.html
> Submitter  : Martin Lorenz <martin@lorenz.eu.org>
> Status     : unknown
> 
> 
seems fixed
I have to retest it, but it came back nicely on two subsequent
suspend/resume cycles

> Subject    : ThinkPad T60: lose ACPI events after suspend/resume
> References : http://lkml.org/lkml/2006/10/10/39
> Submitter  : Martin Lorenz <martin@lorenz.eu.org>
> Status     : problem might be fixed by
>              commit f9dadfa71bc594df09044da61d1c72701121d802
> 

same as above

> 
> Subject    : i386: more DWARFs and strange messages
> References : http://lkml.org/lkml/2006/10/29/127
> Submitter  : Martin Lorenz <martin@lorenz.eu.org>
> Status     : should be fixed by
>              commit 4b96b1a10cb00c867103b21f0f2a6c91b705db11

none present in my current dmesg

I will keep testing and reporting :-)

thanks a lot 
  mlo
--
Dipl.-Ing. Martin Lorenz

            They that can give up essential liberty 
	    to obtain a little temporary safety 
	    deserve neither liberty nor safety.
                                   Benjamin Franklin

please encrypt your mail to me
GnuPG key-ID: F1AAD37D
get it here:
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ICQ UIN: 33588107

Re: 2.6.19-rc5: known regressions

[Martin Lorenz]

> 
> current kernel is 2.6.19-rc5+ieee80211+e1000-45.3+1909-g6a4abeae-dirty
> 
> Commit: 6a4abeaefae897ded6b39ed3f3a84662923e6b60
> Author: Martin Lorenz <mlo@gimli.(none)> Wed, 08 Nov 2006 19:58:44 +0100
> 
> which is my e1000 patch 
> 
> Commit: 17dfbe2264b50308189de1fe4068bdffbf065dfc
> Author: Martin Lorenz <mlo@gimli.(none)> Wed, 08 Nov 2006 19:58:44 +0100
> 
> which is the patch to upgrade ieee80211 to V.1.2.15 so I can use ipw3945
> 
> 
> Commit: 48797ebd9e8b16fddcd4ef062f792314a6b9219a
> Author: Linus Torvalds <torvalds@merom.osdl.org> Wed, 08 Nov 2006 10:27:54
> -0800
> 
> ...the version I pulled
> 
> $ cg-status
> Heads:
>     >master     6a4abeaefae897ded6b39ed3f3a84662923e6b60
>      origin     082f2f84be5db164280483efa7eb1549d867353d
> 
> 
> it's an X60s BTW
> > 
> > Subject    : ThinkPad T60: no screen after resume
> > References : http://mail.matrix.de/pipermail/linux-thinkpad/2006-November/037011.html
> > Submitter  : Martin Lorenz <martin@lorenz.eu.org>
> > Status     : unknown
> > 
> > 
> seems fixed
> I have to retest it, but it came back nicely on two subsequent
> suspend/resume cycles

did a lot of testing now.
no more black screen after resume

> 
> > Subject    : ThinkPad T60: lose ACPI events after suspend/resume
> > References : http://lkml.org/lkml/2006/10/10/39
> > Submitter  : Martin Lorenz <martin@lorenz.eu.org>
> > Status     : problem might be fixed by
> >              commit f9dadfa71bc594df09044da61d1c72701121d802
> > 
> 
> same as above
ACPI seems to be ok as well
nothing strange happening anymore even after a LOT of fancy playing around

> 
> > 
> > Subject    : i386: more DWARFs and strange messages
> > References : http://lkml.org/lkml/2006/10/29/127
> > Submitter  : Martin Lorenz <martin@lorenz.eu.org>
> > Status     : should be fixed by
> >              commit 4b96b1a10cb00c867103b21f0f2a6c91b705db11
> 
> none present in my current dmesg
not one since I booted this kernel

> 
> I will keep testing and reporting :-)
> 
> thanks a lot 
  mlo
--
Dipl.-Ing. Martin Lorenz

            They that can give up essential liberty 
	    to obtain a little temporary safety 
	    deserve neither liberty nor safety.
                                   Benjamin Franklin

please encrypt your mail to me
GnuPG key-ID: F1AAD37D
get it here:
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ICQ UIN: 33588107

Re: 2.6.19-rc5: known regressions

[Martin Lorenz]

On Thu, Nov 09, 2006 at 02:55:30PM +0100, Dipl.-Ing. Martin Lorenz wrote:
> > 
> > current kernel is 2.6.19-rc5+ieee80211+e1000-45.3+1909-g6a4abeae-dirty
> > 
> > Commit: 6a4abeaefae897ded6b39ed3f3a84662923e6b60
> > Author: Martin Lorenz <mlo@gimli.(none)> Wed, 08 Nov 2006 19:58:44 +0100
> > 
> > which is my e1000 patch 
> > 
> > Commit: 17dfbe2264b50308189de1fe4068bdffbf065dfc
> > Author: Martin Lorenz <mlo@gimli.(none)> Wed, 08 Nov 2006 19:58:44 +0100
> > 
> > which is the patch to upgrade ieee80211 to V.1.2.15 so I can use ipw3945
> > 
> > 
> > Commit: 48797ebd9e8b16fddcd4ef062f792314a6b9219a
> > Author: Linus Torvalds <torvalds@merom.osdl.org> Wed, 08 Nov 2006 10:27:54
> > -0800
> > 
> > ...the version I pulled
> > 
> > $ cg-status
> > Heads:
> >     >master     6a4abeaefae897ded6b39ed3f3a84662923e6b60
> >      origin     082f2f84be5db164280483efa7eb1549d867353d
> > 
> > 
> > it's an X60s BTW
> > > 
> > > Subject    : ThinkPad T60: no screen after resume
> > > References : http://mail.matrix.de/pipermail/linux-thinkpad/2006-November/037011.html
> > > Submitter  : Martin Lorenz <martin@lorenz.eu.org>
> > > Status     : unknown
> > > 
> > > 
> > seems fixed
> > I have to retest it, but it came back nicely on two subsequent
> > suspend/resume cycles
> 
> did a lot of testing now.
> no more black screen after resume

wellllll

just had one.
I am not sure, what was different this time
I had my system up and running since yesterdays report and suspended it
several times.

now I got a black screen again and it seems, that the keyboard was
dysfunctional too this time - well kind of. I could not switch screens (how
should I have noticed success with a completely black screen) not even the
flickering I saw last time. but hittinf Ctrl-Alt-Del did a clean reboot


I found this in the Xorg log after reboot

(II) I810(0): BIOS call 0x5f05 not supported, setting refresh with VBE 3
method.(II) I810(0): xf86UnbindGARTMemory: unbind key 9
(II) I810(0): xf86UnbindGARTMemory: unbind key 0
(II) I810(0): xf86UnbindGARTMemory: unbind key 1
(II) I810(0): xf86UnbindGARTMemory: unbind key 3
(II) I810(0): xf86UnbindGARTMemory: unbind key 4
(II) I810(0): xf86UnbindGARTMemory: unbind key 2
(II) I810(0): xf86UnbindGARTMemory: unbind key 5
(II) I810(0): xf86UnbindGARTMemory: unbind key 6
(II) I810(0): xf86UnbindGARTMemory: unbind key 7
(II) I810(0): xf86UnbindGARTMemory: unbind key 8
(WW) I810(0): Successfully set original devices (2)
SetGrabKeysState - disabled
(WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
(II) No APM support in BIOS or kernel
(II) Screen 0 shares mem & io resources
(II) Screen 1 shares mem & io resources
(II) Screen 0 shares mem & io resources
(II) Screen 1 shares mem & io resources
(II) AIGLX: Resuming AIGLX clients after VT switch
(II) I810(0): Detected resume, re-POSTing.
(WW) I810(0): Bad V_BIOS checksum
(II) I810(0): Primary V_BIOS segment is: 0xc000


I will upload my latest logs to www.lorenz.eu.org/~mlo/kernel

I did a SysRq-t before uploading the messages log

one thing was different indeed: I was online my home wlan using
ipw3945-1.1.2

this driver was not loaded on any suspend before

but on other differences as far as I recall

> 
> > 
> > > Subject    : ThinkPad T60: lose ACPI events after suspend/resume
> > > References : http://lkml.org/lkml/2006/10/10/39
> > > Submitter  : Martin Lorenz <martin@lorenz.eu.org>
> > > Status     : problem might be fixed by
> > >              commit f9dadfa71bc594df09044da61d1c72701121d802
> > > 
> > 
> > same as above
> ACPI seems to be ok as well
> nothing strange happening anymore even after a LOT of fancy playing around
> 

in the situation described above I tried to suspend again using Fn-F4
without success

and nothing in the acpid logfile that shows this keypress


> > 
> > > 
> > > Subject    : i386: more DWARFs and strange messages
> > > References : http://lkml.org/lkml/2006/10/29/127
> > > Submitter  : Martin Lorenz <martin@lorenz.eu.org>
> > > Status     : should be fixed by
> > >              commit 4b96b1a10cb00c867103b21f0f2a6c91b705db11
> > 
> > none present in my current dmesg
> not one since I booted this kernel
> 
> > 
> > I will keep testing and reporting :-)
> > 
> > thanks a lot 
>   mlo
> --
> Dipl.-Ing. Martin Lorenz
> 
>             They that can give up essential liberty 
> 	    to obtain a little temporary safety 
> 	    deserve neither liberty nor safety.
>                                    Benjamin Franklin
> 
> please encrypt your mail to me
> GnuPG key-ID: F1AAD37D
> get it here:
> http://blackhole.pca.dfn.de:11371/pks/lookup?op=get&search=0xF1AAD37D
> 
> ICQ UIN: 33588107

gruss
  mlo
--
Dipl.-Ing. Martin Lorenz

            They that can give up essential liberty 
	    to obtain a little temporary safety 
	    deserve neither liberty nor safety.
                                   Benjamin Franklin

please encrypt your mail to me
GnuPG key-ID: F1AAD37D
get it here:
http://blackhole.pca.dfn.de:11371/pks/lookup?op=get&search=0xF1AAD37D

ICQ UIN: 33588107

2.6.19-rc5: known regressions (v2)

[Adrian Bunk]

This email lists some known regressions in 2.6.19-rc5 compared to 2.6.18
that are not yet fixed in Linus' tree.

If you find your name in the Cc header, you are either submitter of one
of the bugs, maintainer of an affectected subsystem or driver, a patch
of you caused a breakage or I'm considering you in any other way possibly
involved with one or more of these issues.

Due to the huge amount of recipients, please trim the Cc when answering.


Subject    : PCI MSI setting corrupted during resume
References : http://bugzilla.kernel.org/show_bug.cgi?id=7479
Submitter  : Stephen Hemminger <shemminger@osdl.org>
Status     : unknown


Subject    : x86_64 boot failure: irq 22: nobody cared (hda_intel MSI)
References : http://lkml.org/lkml/2006/11/8/98
Submitter  : Olivier Nicolas <olivn@trollprod.org>
Status     : unknown


Subject    : SMP kernel can not generate ISA irq properly
References : http://lkml.org/lkml/2006/10/22/15
             http://lkml.org/lkml/2006/11/10/142
Submitter  : Komuro <komurojun-mbn@nifty.com>
Handled-By : Thomas Gleixner <tglx@linutronix.de>
Status     : Thomas is investigating


Subject    : x86_64: Fix partial page check to ensure unusable memory
                     is not being marked usable
References : http://lkml.org/lkml/2006/11/9/239
Submitter  : Aaron Durbin <adurbin@google.com>
Caused-By  : Mel Gorman <mel@csn.ul.ie>
             commit 5cb248abf5ab65ab543b2d5fc16c738b28031fc0
Patch      : http://lkml.org/lkml/2006/11/9/239
Status     : patch available


Subject    : x86_64: Bad page state in process 'swapper'
References : http://lkml.org/lkml/2006/11/10/135
             http://lkml.org/lkml/2006/11/10/208
Submitter  : Andre Noll <maan@systemlinux.org>
Handled-By : Andi Kleen <ak@suse.de>
Status     : Andi is investigating


Subject    : x86_64: oprofile doesn't work
References : http://lkml.org/lkml/2006/10/27/3
Submitter  : Prakash Punnoor <prakash@punnoor.de>
Status     : unknown


Subject    : weird battery charge level reported
             ACPI Error method parse / execution failed
References : http://bugzilla.kernel.org/show_bug.cgi?id=7466
Submitter  : Olivier Mondoloni <olivier.mondoloni@waika9.com>
Status     : unknown


Subject    : ThinkPad R50p: boot fail with (lapic && on_battery)
References : http://lkml.org/lkml/2006/10/31/333
Submitter  : Ernst Herzberg <earny@net4u.de>
Handled-By : Len Brown <len.brown@intel.com>
Status     : problem is being debugged


Subject    : BUG: scheduling while atomic: events/0/0x00000001/4
             after resume
References : http://lkml.org/lkml/2006/11/2/209
Submitter  : Paolo Ornati <ornati@fastwebnet.it>
Status     : unknown


Subject    : sata-via doesn't detect anymore disks attached to VIA vt6421
References : http://bugzilla.kernel.org/show_bug.cgi?id=7255
Submitter  : Thierry Vignaud <tvignaud@mandriva.com>
Status     : unknown


Subject    : libata must be initialized earlier
References : http://ozlabs.org/pipermail/linuxppc-dev/2006-November/027945.html
Submitter  : Paul Mackerras <paulus@samba.org>
Handled-By : Brian King <brking@us.ibm.com>
Patch      : http://marc.theaimsgroup.com/?l=linux-ide&m=116169938407596&w=2
Status     : patch available


Subject    : unable to rip cd
References : http://lkml.org/lkml/2006/10/13/100
             http://lkml.org/lkml/2006/11/8/42
Submitter  : Alex Romosan <romosan@sycorax.lbl.gov>
Handled-By : Jens Axboe <jens.axboe@oracle.com>
Status     : Jens is investigating