Machine no longer enters C3 on 2.6.11-rc1-bk

Machine no longer enters C3 on 2.6.11-rc1-bk

[Pavel Machek]

Hi!

bus master activity: is changing all the time, mostly 555555555 and
aaaaaaa, and cpu refuses to enter C3 for obvious reasons. I compiled
out USB and sound... Does anybody else see the same problem?

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

[ACPI] Machine no longer enters C3 on 2.6.11-rc1-bk

[Fred Labrosse]

Pavel Machek writes:
 > Hi!
 > 
 > bus master activity: is changing all the time, mostly 555555555 and
 > aaaaaaa, and cpu refuses to enter C3 for obvious reasons. I compiled
 > out USB and sound... Does anybody else see the same problem?
 > 

I did notice too that it was never in C3 apart from a bit right at the
beginning, since 2.6.10.  It has always been like that up to 2.6.6, became
better from 2.6.7 (but had other problems with that).

Fred

P.S.  I didn't check bus master activity.  How do you do that?

Re: [ACPI] Machine no longer enters C3 on 2.6.11-rc1-bk

[Pavel Machek]

Hi!

>  > bus master activity: is changing all the time, mostly 555555555 and
>  > aaaaaaa, and cpu refuses to enter C3 for obvious reasons. I compiled
>  > out USB and sound... Does anybody else see the same problem?
>  > 
> 
> I did notice too that it was never in C3 apart from a bit right at the
> beginning, since 2.6.10.  It has always been like that up to 2.6.6, became
> better from 2.6.7 (but had other problems with that).

Good, so I'm not alone.

> P.S.  I didn't check bus master activity.  How do you do that?

cat /proc/acpi/processor/*/power

								Pavel

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

Re: [ACPI] Machine no longer enters C3 on 2.6.11-rc1-bk

[Pavel Machek]

Hi!

>  > bus master activity: is changing all the time, mostly 555555555 and
>  > aaaaaaa, and cpu refuses to enter C3 for obvious reasons. I compiled
>  > out USB and sound... Does anybody else see the same problem?
>  > 
> 
> I did notice too that it was never in C3 apart from a bit right at the
> beginning, since 2.6.10.  It has always been like that up to 2.6.6, became
> better from 2.6.7 (but had other problems with that).
> 
> P.S.  I didn't check bus master activity.  How do you do that?

There's something wrong with bus master activity indicator: it seems
to be updated every HZ or something like that... that results in a bad
stuff if HZ=100... activiy is now non-zero and machine refuses to go
C3.
								Pavel
-- 
People were complaining that M$ turns users into beta-testers...
...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!

Re: [ACPI] Machine no longer enters C3 on 2.6.11-rc1-bk

[Pavel Machek]

Hi!

>  > bus master activity: is changing all the time, mostly 555555555 and
>  > aaaaaaa, and cpu refuses to enter C3 for obvious reasons. I compiled
>  > out USB and sound... Does anybody else see the same problem?
>  > 
> 
> I did notice too that it was never in C3 apart from a bit right at the
> beginning, since 2.6.10.  It has always been like that up to 2.6.6, became
> better from 2.6.7 (but had other problems with that).
> 
> Fred
> 
> P.S.  I didn't check bus master activity.  How do you do that?

can you try to kill all bm_activity++ things in
drivers/acpi/processor.c and see what it does to your power
consumption. (Warning: it may do bad stuff to your performance).

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