ACPI-Problems with debian-etch & Kernel 2.6.16

ACPI-Problems with debian-etch & Kernel 2.6.16

[Joschka Sulzer]

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I recently installed etch on my Ac er Extensa laptop and as with sarge
, it boots only with noapic nolapic kernel-options
I can't use X and the text-terminals are full of:

ACPI:0339: *** ERROR: Looking up[Z00C] in namespace, AE_NOT_FOUND
search_node dfb855960 start node dfb85960 return_node 00000000

AND

ACPI-0508: *** ERROR: method execution failed [\_SB_.BAT1._BST] (node
dfb8680), AE_NOT_FOUND)

These messages appear every 10 seconds!
If anyone could help me please
Greetings Joschka Sulzer


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Re: ACPI-Problems with debian-etch & Kernel 2.6.16

[Sanjoy Mahajan]

> These messages appear every 10 seconds!

Do you have thermal polling turned on?

more /proc/acpi/thermal_zone/*/polling_frequency

Not that you should turn the polling off, but maybe every time a
thermal poll is run, the embedded controller (ec) does an UPDT, which
also means it looks at the battery state.  And maybe the UPDT causes
the namespace AE_NOT_FOUND.  Perhaps it didn't cause a problem before
because the default used to be ec_intr=0, and the ec worked fine with
that setting.

You could try booting with ec_intr=0 to see if it suppresses the
problem.

I've spent a while (see bugzilla #5989) debugging the consequences of
changing the default from ec_intr=0 to ec_intr=1 (which happened in
2.6.16-rc* sometime -- see the #5989 bugzilla entries for the exact
git commit id).  Probably it's a good change in general -- I leave
that to the experts -- but it has certainly exposed a few troubles in
the mangy BIOS on my TP 600X.

-Sanjoy

`Never underestimate the evil of which men of power are capable.'
         --Bertrand Russell, _War Crimes in Vietnam_, chapter 1.

Re: ACPI-Problems with debian-etch & Kernel 2.6.16

[Joschka Sulzer]

sanjoy@mrao.cam.ac.uk schrieb:
>> These messages appear every 10 seconds!
>>     
>
> Do you have thermal polling turned on?
>
> more /proc/acpi/thermal_zone/*/polling_frequency
>
> Not that you should turn the polling off, but maybe every time a
> thermal poll is run, the embedded controller (ec) does an UPDT, which
> also means it looks at the battery state.  And maybe the UPDT causes
> the namespace AE_NOT_FOUND.  Perhaps it didn't cause a problem before
> because the default used to be ec_intr=0, and the ec worked fine with
> that setting.
>
> You could try booting with ec_intr=0 to see if it suppresses the
> problem.
>
> I've spent a while (see bugzilla #5989) debugging the consequences of
> changing the default from ec_intr=0 to ec_intr=1 (which happened in
> 2.6.16-rc* sometime -- see the #5989 bugzilla entries for the exact
> git commit id).  Probably it's a good change in general -- I leave
> that to the experts -- but it has certainly exposed a few troubles in
> the mangy BIOS on my TP 600X.
>   

I don't care anymore; updating to 2.6.16 solved my problems ;-)
Now the Kernel boots without any Kernelparameters at all !