Re: [3/5] 2.6.22-rc2: known regressions

Re: [3/5] 2.6.22-rc2: known regressions

[Michal Piotrowski]

Hi all,

Here is a list of some known regressions in 2.6.22-rc2.

Feel free to add new regressions/remove fixed etc.
http://kernelnewbies.org/known_regressions



SATA/PATA

Subject    : libata and legacy ide pcmcia failure
References : http://lkml.org/lkml/2007/5/17/305
Submitter  : Robert de Rooy <robert.de.rooy@gmail.com>
Status     : Unknown

Subject    : pata_via appears to incorrectly detects 40-pin cable
References : http://lkml.org/lkml/2007/5/17/273
             http://bugzilla.kernel.org/show_bug.cgi?id=8142
Submitter  : Francis Russell <francisrussell@btopenworld.com>
Status     : Unknown

Subject    : libata crash on halt
References : http://marc.info/?l=linux-ide&m=117899827710565&w=2
Submitter  : Andrew Morton <akpm@linux-foundation.org>
Caused-By  : Tejun Heo <htejun@gmail.com>
             commit 920a4b1038e442700a1cfac77ea7e20bd615a2c3
Status     : problem is being debugged

Subject    : libata reset-seq merge broke sata_sil on sh
References : http://lkml.org/lkml/2007/5/10/63
Submitter  : Paul Mundt <lethal@linux-sh.org>
Handled-By : Tejun Heo <htejun@gmail.com>
Caused-By  : commit 4750def52cb2c21732dda9aa1d43a07db37b0186
Status     : problem is being debugged



V4L

Subject    : V4L ABI breakage
References : http://lkml.org/lkml/2007/5/14/42
Submitter  : Robert Fitzsimons <robfitz@273k.net>
Caused-By  : Hans Verkuil <hverkuil@xs4all.nl>
             Mauro Carvalho Chehab <mchehab@infradead.org>
             commit 206ebaf32795cf1582b1e2ff2ec6a560c9e986b8
Status     : Unknown



Regards,
Michal

--
Michal K. K. Piotrowski
Kernel Monkeys
(http://kernel.wikidot.com/start)

Re: [3/5] 2.6.22-rc2: known regressions

[Tejun Heo]

Hello,

Michal Piotrowski wrote:
> SATA/PATA
> 
> Subject    : libata and legacy ide pcmcia failure
> References : http://lkml.org/lkml/2007/5/17/305
> Submitter  : Robert de Rooy <robert.de.rooy@gmail.com>
> Status     : Unknown

Doesn't look like a regression to me.  Doubled timeout looks like a
problem with timer.  I'll follow up on the original thread.

> Subject    : pata_via appears to incorrectly detects 40-pin cable
> References : http://lkml.org/lkml/2007/5/17/273
>              http://bugzilla.kernel.org/show_bug.cgi?id=8142
> Submitter  : Francis Russell <francisrussell@btopenworld.com>
> Status     : Unknown

Not really a regression.  Alan seems to have a general fix and I think
we can also quirk the specific case.

> Subject    : libata crash on halt
> References : http://marc.info/?l=linux-ide&m=117899827710565&w=2
> Submitter  : Andrew Morton <akpm@linux-foundation.org>
> Caused-By  : Tejun Heo <htejun@gmail.com>
>              commit 920a4b1038e442700a1cfac77ea7e20bd615a2c3
> Status     : problem is being debugged

This was fixed by the following commit.

commit da071b42f73dabbd0daf7ea4c3ff157d53b00648
Author: Tejun Heo <htejun@gmail.com>
Date:   Mon May 14 17:26:18 2007 +0200

    libata: fix shutdown warning message printing

> Subject    : libata reset-seq merge broke sata_sil on sh
> References : http://lkml.org/lkml/2007/5/10/63
> Submitter  : Paul Mundt <lethal@linux-sh.org>
> Handled-By : Tejun Heo <htejun@gmail.com>
> Caused-By  : commit 4750def52cb2c21732dda9aa1d43a07db37b0186
> Status     : problem is being debugged

Possible fix proposed.

  http://lkml.org/lkml/2007/5/19/161

I'll push the fix once Paul verifies it.

Thanks.

-- 
tejun

Re: [3/5] 2.6.22-rc2: known regressions

[Alan Cox]

> > Subject    : pata_via appears to incorrectly detects 40-pin cable
> > References : http://lkml.org/lkml/2007/5/17/273
> >              http://bugzilla.kernel.org/show_bug.cgi?id=8142
> > Submitter  : Francis Russell <francisrussell@btopenworld.com>
> > Status     : Unknown
> 
> Not really a regression.  Alan seems to have a general fix and I think
> we can also quirk the specific case.

Fixed in my tree not a regression. I'll try and push some bits monday
this included.

Alan

Re: [3/5] 2.6.22-rc2: known regressions

[Mauro Carvalho Chehab]

Hi Michal,

Em Dom, 2007-05-20 às 00:06 +0200, Michal Piotrowski escreveu:

> V4L
> 
> Subject    : V4L ABI breakage
> References : http://lkml.org/lkml/2007/5/14/42
> Submitter  : Robert Fitzsimons <robfitz@273k.net>
> Caused-By  : Hans Verkuil <hverkuil@xs4all.nl>
>              Mauro Carvalho Chehab <mchehab@infradead.org>
>              commit 206ebaf32795cf1582b1e2ff2ec6a560c9e986b8
> Status     : Unknown

I was traveling abroad last week, without access to my devel
environment. Hans is currently working on a definitive fix for the
issue. His schedule is to have a proper solution until next week.

For now, it is better just to revert the bad changes. I've committed a
patch on my tree for that:

http://git.kernel.org/?p=linux/kernel/git/mchehab/v4l-dvb.git;a=commitdiff;h=15ac2d293b08b6975c6ca1a80eb839d4cb0dddbf

I'm currently running some tests on my environment with the fix patches
I currently have. I should send a pull request to Linus later today.

-- 
Cheers,
Mauro