Re: [3/3] 2.6.21-rc7: known regressions (v2)

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On Mon, 23 Apr 2007 23:49:09 +0200 Adrian Bunk <[email protected]> wrote:

> 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    : HPET enabled freeze my machine at boot
>              workaround: clocksource=acpi_pm
> References : http://lkml.org/lkml/2007/4/19/370
> Submitter  : Guilherme Schroeder <[email protected]>
> Caused-By  : Thomas Gleixner <[email protected]>
>              commit 5d8b34fdcb384161552d01ee8f34af5ff11f9684
> Handled-By : John Stultz <[email protected]>
> Status     : problem is being debugged
> 
> 
> Subject    : acpi_pm clocksource loses time on x86-64
> References : http://lkml.org/lkml/2007/4/17/143
> Submitter  : Mikael Pettersson <[email protected]>
> Handled-By : John Stultz <[email protected]>
> Status     : problem is being debugged
> 
> 
> Subject    : suspend to disk hangs  (CONFIG_NO_HZ)
> References : http://lkml.org/lkml/2007/3/25/217
> Submitter  : Jeff Chua <[email protected]>
> Status     : unknown

That's still rather a lot of bustage from the timekeeping changes.  Is
anything really happening here or have we all given up?

> 
> Subject    : ThinkPad X60: resume no longer works  (PCI related?)
>              workaround: CONFIG_FB_BACKLIGHT=n
> References : http://lkml.org/lkml/2007/3/13/3
> Submitter  : Dave Jones <[email protected]>
> Caused-By  : PCI merge
>              commit 78149df6d565c36675463352d0bfe0000b02b7a7
> Handled-By : Eric W. Biederman <[email protected]>
>              Rafael J. Wysocki <[email protected]>
>              Antonino A. Daplas <[email protected]>
> Status     : unknown
> 

Is this related to the problems Jeremy has been looking at?

> Subject    : suspend to disk works only once
>              workaround: "echo shutdown > /sys/power/disk"
> References : http://lkml.org/lkml/2007/4/13/240
> Submitter  : Tobias Diedrich <[email protected]>
> Caused-By  : Rafael J. Wysocki <[email protected]>
>              commit ed746e3b18f4df18afa3763155972c5835f284c5
> Handled-By : Rafael J. Wysocki <[email protected]>
>              Dmitry Torokhov <[email protected]>
> Status     : problem is being debugged

That's been happening on my Vaio-of-death for several weeks now.  I spent a
bit of time with the ACPI guys on it but we didn't get far.  I need to
find an hour or two to work out what's gone wrong.
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