Re: [RFT] x86 acpi: normalize segment descriptor register on resume

Andy Lutomirski
2008-07-12T20:39:26Z

Rafael J. Wysocki wrote:
> On Saturday, 12 of July 2008, Andy Lutomirski wrote:
>> My Lenovo X61s fails to resume if I suspend it from within X, on both
>> 2.6.26-rc9 and recent wireless-testing. 2.6.26-rc8 is fine, as is
>> wireless-testing with 4b4f7280 reverted. My in-progress bisect between
>> -rc8 and -rc9 is also consistent with this being the problem.
>>
>> The symptom is that, when I push the power button to resume, the hard
>> drive light turns on, the fan turns on, then the hard drive light turns
>> off, the sleep light stays on, and the fan keeps running. Sometimes the
>> battery light will blink off very briefly (1/4 sec, maybe) every few
>> seconds. The system is locked hard at this point.
>>
>> I'm using Ubuntu Hardy userspace.
>
> Well, that's bad.
>
> There is the bugzilla entry at http://bugzilla.kernel.org/show_bug.cgi?id=11064
> for this bug and you've just confirmed my suspicion that this particular
> commit is to blame.
>
> Can you please see if the appended patch changes anything?

More correctly:

If I suspend by typing pm-suspend or echo mem >/sys/power/state, then it
resumes just fine. If I log in to Gnome and push the suspend button,
then it does not resume. This seems to be the case with or without your
patch.

-rc8 and -rc9 with the original patch 4b4f7280 resume fine no matter how
I suspend.

--Andy