Re: Regression in 2.6.28-rc and 2.6.27-stable - hibernate related

["Rafael J. Wysocki" <rjw@sisk.pl>]

On Wednesday, 26 of November 2008, Stefan Richter wrote:
> Fabio Comolli wrote:
> > Ok, I reproduced the bug with 2.6.27.7 without firewire. So the
> > firewire stack is innocent after all.
> 
> That's great news for me at least.  ;-)
> 
> > FWIW, it happened after the resume, as soon as I plugged the AC
> > adapter. The system became unresponsive for at least two minutes and
> > then "resurrected" as nothing happened. Nothing in the logs and the
> > dmesg is clean.
> > 
> > I ran out of ideas. I'm trying 2.6.27.4, the kernel then never showed
> > the problem.
> 
> The 2.6.27.5 changelog shows a bunch of ACPI changes.  They may not be
> responsible, but in my uninformed opinion these are the changes to look
> at more closely.  Since plain bisection did not work well for you, maybe
> you should ask the maintainers involved in the ACPI patches for a
> priority list of patches to unapply for long-term tests.

Actually, yes, Fabio, you can try to revert all of the "ACPI: EC:" commits
applied after 2.6.27.4 and retest.

Thanks,
Rafael