Re: Regression 2.6.39-rc1 for sony-laptop

From: Andrea Gelmini
Date: Sat Apr 02 2011 - 05:45:07 EST

2011/4/1 Matthew Garrett <mjg59@xxxxxxxxxxxxx>:
> touch any Sony code. I'll take a look at the Sony patches, thanks for
> the report!

Hi Matthew,
and thanks a lot for your quick answer.
Maybe I messed up with bisect trying to find the origin of two regression.
One was this. The other one is this one.

Hibernation (to disk, of course) doesn't work no more.
Screen blanks and nothing happens. No HD activity, and so on. I also
waited some minutes.

Well, bisect blame this commit:

commit 2a4f0c81adcd1f812a63bc9106be2fd26f437730
Author: Mattia Dongili <malattia@xxxxxxxx>
Date: Sat Feb 19 11:52:30 2011 +0900

sony-laptop: cache handles and report them via sysfs

Avoid calling into acpi each time we need to lookup a method handle
and report the available handles to ease collection of information when
debugging issues. Also move initialization of the platform driver
earlier to allow adding files from other setup functions.

Signed-off-by: Mattia Dongili <malattia@xxxxxxxx>
Signed-off-by: Matthew Garrett <mjg@xxxxxxxxxx>

drivers/platform/x86/sony-laptop.c | 97 ++++++++++++++++++++++++++++++------
1 files changed, 81 insertions(+), 16 deletions(-)

Do you have any suggestion to better track down this issue?
It's not possibile to simply revert it.

Thanks a lot for your time,
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