Re: 2.6.35-rc4-git3: Reported regressions from 2.6.34

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Hi Jesse,

(stripping some people from Cc, hopefully not too many)

On Fr, 09 Jul 2010, Jesse Barnes wrote:
> > > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=16179
> > > Subject         : 2.6.35-rc2 completely hosed on intel gfx?
> > > Submitter       : Norbert Preining <preining@xxxxxxxx>
> > > Date            : 2010-06-06 11:55 (33 days old)
> > > Message-ID      : <20100606115534.GA9399@xxxxxxxxxxxxxxxxxxxxxxxx>
> > > References      : http://marc.info/?l=linux-kernel&m=127582534931581&w=2  
> > 
> > Hmm. That one is the vt.c bug coupled with another problem, which in
> > turn got opened as a separate bugzilla entry:
> > 
> >    http://bugzilla.kernel.org/show_bug.cgi?id=16252
> > 
> > which in turn then got closed. I dunno.
> 
> Yeah, this is weird.  Norbert, do you still see this?  Have you tried
> to bisect it?

I wrote in my last comment of this bug that in *most* of the cases
the 
	echo "mem" > /sys/power/state
works perfectly, and I'm using it permanently now.

The problem seems to be in combination with some pm-utils scripts.
I still haven't been able to pin-point the actual pm-utils script that
causes the problem, since that is something not 100% reproducible.

Futhermore, *once* (only once!) the echo mem > method failed as written in
the bug report with :
[16273.....] PM: resume of devices complete after 2115.046 msecs
[16273.....] Restarting tasks ... done
[16273.....] video LNXVIDEO:00: Restoring backlight state
hanging here, but only once, not any time again.

It is hard to say what the culprit is, some new pm-utils script maybe,
since it happens even when I switch pm-utils to use the kernel method
(echo mem) to suspend, and not uswsusp (s2ram prog).

I would suggest keeping that bug closed until I have found the pm-utils
or a specific culprit, then I can reopen it or open a new bug.

(more disturbing are iwlagn bugs, they are a PITA without any progress)

Best wishes

Norbert
------------------------------------------------------------------------
Norbert Preining            preining@{jaist.ac.jp, logic.at, debian.org}
JAIST, Japan                                 TeX Live & Debian Developer
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