[4/4] 2.6.21-rc5: known regressions (v2)

[4/4] 2.6.21-rc5: known regressions (v2)

[Adrian Bunk]

[ this time with a Cc... ]

This email lists some known regressions in Linus' tree compared to 2.6.20.

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    : MacMini doesn't come out of suspend to ram  (i386 clockevents)
             (CONFIG_HPET_TIMER)
References : http://lkml.org/lkml/2007/3/21/374
Submitter  : Frédéric Riss <frederic.riss@gmail.com>
             Tino Keitel <tino.keitel@gmx.de>
Caused-By  : Thomas Gleixner <tglx@linutronix.de>
             commit e9e2cdb412412326c4827fc78ba27f410d837e6e
Status     : unknown


Subject    : after resume: X hangs after drawing a couple of windows
             workaround: clocksource=acpi_pm
References : http://lkml.org/lkml/2007/3/8/117
             http://lkml.org/lkml/2007/3/25/20
             http://lkml.org/lkml/2007/3/26/151
Submitter  : Michael S. Tsirkin <mst@mellanox.co.il>
Handled-By : Thomas Gleixner <tglx@linutronix.de>
Status     : problem is being debugged


Subject    : system doesn't come out of suspend  (CONFIG_NO_HZ)
References : http://lkml.org/lkml/2007/2/22/391
Submitter  : Michael S. Tsirkin <mst@mellanox.co.il>
             Soeren Sonnenburg <kernel@nn7.de>
Handled-By : Thomas Gleixner <tglx@linutronix.de>
             Ingo Molnar <mingo@elte.hu>
             Tejun Heo <htejun@gmail.com>
             Rafael J. Wysocki <rjw@sisk.pl>
Status     : unknown


Subject    : suspend to disk hangs  (CONFIG_NO_HZ)
References : http://lkml.org/lkml/2007/3/25/217
Submitter  : Jeff Chua <jeff.chua.linux@gmail.com>
Status     : unknown

Re: [4/4] 2.6.21-rc5: known regressions (v2)

[Jeff Chua]

On 3/31/07, Adrian Bunk <bunk@stusta.de> wrote:

> Subject    : suspend to disk hangs  (CONFIG_NO_HZ)
> References : http://lkml.org/lkml/2007/3/25/217
> Submitter  : Jeff Chua <jeff.chua.linux@gmail.com>
> Status     : unknown

Still broken on.2.6.21-rc5.

Jeff.

Re: [4/4] 2.6.21-rc5: known regressions (v2)

[Frédéric Riss]

Le vendredi 30 mars 2007 à 23:49 +0200, Adrian Bunk a écrit :
> Subject    : MacMini doesn't come out of suspend to ram  (i386 clockevents)
>              (CONFIG_HPET_TIMER)
> References : http://lkml.org/lkml/2007/3/21/374
> Submitter  : Frédéric Riss <frederic.riss@gmail.com>
>              Tino Keitel <tino.keitel@gmx.de>
> Caused-By  : Thomas Gleixner <tglx@linutronix.de>
>              commit e9e2cdb412412326c4827fc78ba27f410d837e6e
> Status     : unknown

This one has been fixed by 399afa4fc9238fbae42116cf25a54671c0e8f56e.
Suspend to ram now works with HPET enabled (and regardless of the NO_HZ
setting).

Thanks!

Fred.

Re: [4/4] 2.6.21-rc5: known regressions (v2)

[Michael S. Tsirkin]

> Subject    : after resume: X hangs after drawing a couple of windows
>              workaround: clocksource=acpi_pm
> References : http://lkml.org/lkml/2007/3/8/117
>              http://lkml.org/lkml/2007/3/25/20
>              http://lkml.org/lkml/2007/3/26/151
> Submitter  : Michael S. Tsirkin <mst@mellanox.co.il>
> Handled-By : Thomas Gleixner <tglx@linutronix.de>
> Status     : problem is being debugged

Adrian,
the bug was found by Maxim Levitsky and
the following patch appears to have fixed the problem:
http://lkml.org/lkml/2007/3/28/104

the right way to fix it is still being discussed:
http://lkml.org/lkml/2007/3/28/182


-- 
MST

Re: [4/4] 2.6.21-rc5: known regressions (v2)

[Michael S. Tsirkin]

> Subject    : after resume: X hangs after drawing a couple of windows
>              workaround: clocksource=acpi_pm
> References : http://lkml.org/lkml/2007/3/8/117
>              http://lkml.org/lkml/2007/3/25/20
>              http://lkml.org/lkml/2007/3/26/151
> Submitter  : Michael S. Tsirkin <mst@mellanox.co.il>
> Handled-By : Thomas Gleixner <tglx@linutronix.de>
> Status     : problem is being debugged

Seems to be resolved with 399afa4fc9238fbae42116cf25a54671c0e8f56e.
Thanks Maxim!


-- 
MST

Re: [4/4] 2.6.21-rc5: known regressions (v2)

[Markus Rechberger]

Subject    : USB: Oops when changing DVB-T adapter
References : http://lkml.org/lkml/2007/3/9/212
Submitter  : CIJOML <cijoml@volny.cz>
Status     : unknown

regarding this one there's a fix available for unplugging dvb devices 
when they're in still in use.
The problem was that the filehandle was still open and the fops 
structure got deallocated immediatelly when a device got unplugged.

http://mcentral.de/hg/~mrec/v4l-dvb-stable/ (the last 3 patches)

Markus


On 4/1/07, Michael S. Tsirkin <mst@dev.mellanox.co.il> wrote:
 > > Subject    : after resume: X hangs after drawing a couple of windows
 > >              workaround: clocksource=acpi_pm
 > > References : http://lkml.org/lkml/2007/3/8/117
 > >              http://lkml.org/lkml/2007/3/25/20
 > >              http://lkml.org/lkml/2007/3/26/151
 > > Submitter  : Michael S. Tsirkin <mst@mellanox.co.il>
 > > Handled-By : Thomas Gleixner <tglx@linutronix.de>
 > > Status     : problem is being debugged
 >
 > Seems to be resolved with 399afa4fc9238fbae42116cf25a54671c0e8f56e.
 > Thanks Maxim!
 >
 >
 > --
 > MST
 > -
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-- 
Markus Rechberger

-- 
Markus Rechberger
Operating System Research Center
AMD Saxony LLC & Co. KG