Re: intermittent suspend problem again

[Ferenc Wagner <wferi@niif.hu>]

"Rafael J. Wysocki" <rjw@sisk.pl> writes:

> On Wednesday 28 October 2009, Ferenc Wagner wrote:
> 
>> Something similar to http://bugzilla.kernel.org/show_bug.cgi?id=13894
>> raised its ugly head again, please see my last comments on that bug.
>
> This very well may be a separete bug, so please file a new bugzilla report
> on this and mark it as a regression.

Done.

>> 2.6.32-rc5 feels particularly bad, with frequent failures to switch
>> off the machine after "S|" or freezes after "Snapshotting system".
>> The former does not cause much trouble in itself, as the machine can
>> be switched off and resumed all right, but the latter is nasty.
>> Suspend to RAM works all the time.  The issue is not reproducible,
>> unfortunately, and the kernel change happened almost together with a
>> BIOS upgrade.  Yesterday I switched back to 2.6.31 to see whether it
>> still works stably with the new BIOS.  I'll report back my findings in
>> a couple of days.
>
> OK, thanks.
>
> Still, I'm really afraid we won't be able to debug it any further without a
> reproducible test case.

I've got another, fully reproducible but nevertheless neglected ACPI
problem, already mentioned in #13894:
https://bugs.freedesktop.org/show_bug.cgi?id=22126.  Well, it's
probably far-fetched, but maybe the two are somehow related...  Can't
you perhaps suggest a way forward there?  Or some tricks to create a
reproducible test case here?  Btw. my gut feeling is that hibernation
is getting slower with each kernel release.  I didn't measure it, and
didn't even care about comparable initial states... But could anything
explain this, or is it sheer impatience?
-- 
Regards,
Feri.