2007-06-09 17:40:54

by Michal Piotrowski

Subject: [1/3] 2.6.22-rc4: known regressions v2

Hi all,

Here is a list of some known regressions in 2.6.22-rc4.

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



Unclassified

Subject : nanosleep(0) behaviour
References : http://lkml.org/lkml/2007/5/27/108
http://lkml.org/lkml/2007/6/4/239
Submitter : Maximilian Engelhardt <[email protected]>
Handled-By : Gary Zambrano <[email protected]>
Michael Buesch <[email protected]>
Thomas Gleixner <[email protected]>
Status : problem is being debugged

Subject : Kernel hang on CMOS_READ
References : http://lkml.org/lkml/2007/6/3/138
Submitter : Rodrigo Luiz <[email protected]>
Status : Unknown


Subject : Device hang when offlining a CPU due to IRQ misrouting
References : http://lkml.org/lkml/2007/5/31/419
Submitter : Darrick J. Wong <[email protected]>
Handled-By : Siddha, Suresh B <[email protected]>
Status : problem is being debugged

Subject : long freezes on thinkpad t60
References : http://lkml.org/lkml/2007/5/24/100
Submitter : Miklos Szeredi <[email protected]>
Handled-By : Ingo Molnar <[email protected]>
Status : problem is being debugged



Regards,
Michal

--
"Najbardziej brakowa?o mi twojego milczenia."
-- Andrzej Sapkowski "Co? wi?cej"

2007-06-09 18:08:36

by Thomas Gleixner

Subject: Re: [1/3] 2.6.22-rc4: known regressions v2

On Sat, 2007-06-09 at 19:40 +0200, Michal Piotrowski wrote:
> Subject : nanosleep(0) behaviour
> References : http://lkml.org/lkml/2007/5/27/108
> http://lkml.org/lkml/2007/6/4/239
> Submitter : Maximilian Engelhardt <[email protected]>
> Handled-By : Gary Zambrano <[email protected]>
> Michael Buesch <[email protected]>
> Thomas Gleixner <[email protected]>
> Status : problem is being debugged

Please remove this. The behavior is correct and it just affects buggy
applications like iperf, which used usleep(0) as a yield. iperf is fixed
by now.

tglx

2007-06-13 13:38:31

by Pavel Machek

Subject: Re: [1/3] 2.6.22-rc4: known regressions v2

Hi!

Can we add 'writing to /proc/acpi/thermal/*/trip_points' no longer
works to the list? Len did it intentionally but that does not make it
right. People are using it and we did not go through deprecation
period. Plus there's no reasonable alternative.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

2007-06-13 14:53:40

by Andrew Morton

Subject: Re: [1/3] 2.6.22-rc4: known regressions v2

On Tue, 12 Jun 2007 15:02:22 +0000 Pavel Machek <[email protected]> wrote:

> Hi!
>
> Can we add 'writing to /proc/acpi/thermal/*/trip_points' no longer
> works to the list?

I thought we had.

> Len did it intentionally but that does not make it
> right. People are using it and we did not go through deprecation
> period. Plus there's no reasonable alternative.

Was that writeability causing any actual problems in 2.6.21?

2007-06-13 18:03:20

by Michal Piotrowski

Subject: Re: [1/3] 2.6.22-rc4: known regressions v2

Andrew Morton pisze:
> On Tue, 12 Jun 2007 15:02:22 +0000 Pavel Machek <[email protected]> wrote:
>
>> Hi!
>>
>> Can we add 'writing to /proc/acpi/thermal/*/trip_points' no longer
>> works to the list?
>
> I thought we had.

Len rejected this bug
http://bugzilla.kernel.org/show_bug.cgi?id=8495

>
>> Len did it intentionally but that does not make it
>> right. People are using it and we did not go through deprecation
>> period. Plus there's no reasonable alternative.
>
> Was that writeability causing any actual problems in 2.6.21?
>

Regards,
Michal

--
LOG
http://www.stardust.webpages.pl/log/