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

[Andy Lutomirski <luto@myrealbox.com>]

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