S3+S4 combination fails on M2000E

S3+S4 combination fails on M2000E

[Miroslav Ruda]

Hi,

  I have Asus M2000E, running 2.6.10+acpi patches (but the same problem appears 
with previous 2.6 kernels too, with Suse 2.6.5-7.111 and also with swsups2 
patches). Both suspend to disk and suspend to memory works, but I'm still not 
happy :-)

After suspend to memory is used, first suspend to disk is able to suspend, but 
machine is frozen in wake-up. When acpi modules are unloaded before suspend and 
loaded in wake-up, machine is frozen in first acpi module load (thermal?). When
acpi modules are left in kernel, laptop works fine several seconds (I'm even 
check batery status etc.) but then freeze (no message anywhere). When booted
with acpi=off, problem doesn't appear. The same problem is when suspending using
swsusp or swsusp2. When only suspend to disk or suspend to memory is used, 
problem never occures both when acpi modules are unloaded or left in memory.

Any idea?

Cheers,

              Mirek Ruda



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Re: S3+S4 combination fails on M2000E

[Pavel Machek]

Hi!
> 
>  I have Asus M2000E, running 2.6.10+acpi patches (but the same problem 
>  appears with previous 2.6 kernels too, with Suse 2.6.5-7.111 and also with 
> swsups2 patches). Both suspend to disk and suspend to memory works, but I'm 
> still not happy :-)
> 
> After suspend to memory is used, first suspend to disk is able to suspend, 
> but machine is frozen in wake-up. When acpi modules are unloaded before 
> suspend and loaded in wake-up, machine is frozen in first acpi module load 
> (thermal?). When

Try to find out which module causes the freeze, then add printks to
find out where it freezes.

Also go to 2.6.11-rc1.
								Pavel
-- 
People were complaining that M$ turns users into beta-testers...
...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!


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RE: S3+S4 combination fails on M2000E

[Li, Shaohua]

>>  I have Asus M2000E, running 2.6.10+acpi patches (but the same
problem
>>  appears with previous 2.6 kernels too, with Suse 2.6.5-7.111 and
also
>with
>> swsups2 patches). Both suspend to disk and suspend to memory works,
but
>I'm
>> still not happy :-)
>>
>> After suspend to memory is used, first suspend to disk is able to
suspend,
>> but machine is frozen in wake-up. When acpi modules are unloaded
before
>> suspend and loaded in wake-up, machine is frozen in first acpi module
>load
>> (thermal?). When
>
>Try to find out which module causes the freeze, then add printks to
>find out where it freezes.
And also please try the suspend-to-disk mode 'platform' (set in
/sys/power/disk).

Shaohua


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Re: S3+S4 combination fails on M2000E

[Miroslav Ruda]

Li, Shaohua wrote:
>>> I have Asus M2000E, running 2.6.10+acpi patches (but the same
> 
> problem
> 
>>> appears with previous 2.6 kernels too, with Suse 2.6.5-7.111 and
> 
> also
> 
>>with
>>
>>>swsups2 patches). Both suspend to disk and suspend to memory works,
> 
> but
> 
>>I'm
>>
>>>still not happy :-)
>>>
>>>After suspend to memory is used, first suspend to disk is able to
> 
> suspend,
> 
>>>but machine is frozen in wake-up. When acpi modules are unloaded
> 
> before
> 
>>>suspend and loaded in wake-up, machine is frozen in first acpi module
>>
>>load
>>
>>>(thermal?). When
>>
>>Try to find out which module causes the freeze, then add printks to
>>find out where it freezes.
> 
> And also please try the suspend-to-disk mode 'platform' (set in
> /sys/power/disk).

I was finally able to make some tests. Still testing 2.6.10+acpi patches. I have
tried to boot and suspend kernel with acpi compiled in, but none of acpi modules
were loaded. Plain S3 or S4 works fine, resume from S4 (when S3 suspend/resume
was already done) froze complete machine when using 'platform'. With 'shutdown'
mode resume works fine, but first modprobe of ANY acpi modules freeze machine
(testbed with ac, battery, button).

My guess is that during S3 suspend, some memory is freed but still
used/referenced somewhere in acpi code. When acpi module is loaded after resume
from S3, freed memory still contains expected data. But after S4 resume, memory
is cleaned ...

                 Mirek Ruda




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Re: S3+S4 combination fails on M2000E

[Pavel Machek]

Hi!

> >And also please try the suspend-to-disk mode 'platform' (set in
> >/sys/power/disk).
> 
> I was finally able to make some tests. Still testing 2.6.10+acpi patches. I 
> have
> tried to boot and suspend kernel with acpi compiled in, but none of acpi 
> modules
> were loaded. Plain S3 or S4 works fine, resume from S4 (when S3 
> suspend/resume
> was already done) froze complete machine when using 'platform'. With 
> 'shutdown'
> mode resume works fine, but first modprobe of ANY acpi modules freeze 
> machine
> (testbed with ac, battery, button).
> 
> My guess is that during S3 suspend, some memory is freed but still
> used/referenced somewhere in acpi code. When acpi module is loaded after 
> resume
> from S3, freed memory still contains expected data. But after S4 resume, 
> memory
> is cleaned ...

Can you try it on another machine? I'm afraid it is going to be
hw-specific.

									Pavel
-- 
People were complaining that M$ turns users into beta-testers...
...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!


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