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SubjectRe: kernel 2.6.8.1-mm1 ACPI bug ?
Len Brown wrote:

>On Wed, 2004-08-18 at 03:50, Maximilian Decker wrote:
>
>
>>Hi all,
>>
>>it seems like there is a strange ACPI related bug in the current -mm
>>patch set... ?
>>At least with my configuration the following happens:
>>
>>
>>With vanilla kernel 2.6.7 oder 2.6.8 I get the following at bootup:
>>
>>ACPI: Processor [CPU0] (supports C1 C2 C3, 8 throttling states)
>>ACPI: Thermal Zone [TZ1] (30 C)
>>ACPI: Thermal Zone [TZ2] (29 C)
>>ACPI: Thermal Zone [TZ3] (26 C)
>>cpufreq: CPU0 - ACPI performance management activated.
>>ACPI: (supports S0 S3 S4 S4bios S5)
>>
>>
>>With the current -mm patchset (at least with 2.6.8 rc to .1) I get the
>>following:
>>
>>ACPI: Processor [CPU0] (supports C1 C2 C3, 8 throttling states)
>>ACPI: Thermal Zone [TZ1] (16 C)
>> ACPI-1133: *** Error: Method execution failed [\_TZ_.C204] (Node
>>dff45e00), AE_AML_PACKAGE_LIMIT
>> ACPI-1133: *** Error: Method execution failed [\_TZ_.C203] (Node
>>dff45c20), AE_AML_PACKAGE_LIMIT
>> ACPI-1133: *** Error: Method execution failed [\_TZ_.TZ2_._TMP]
>>(Node dff46580), AE_AML_PACKAGE_LIMIT
>>ACPI: Thermal Zone [TZ3] (31 C)
>>cpufreq: CPU0 - ACPI performance management activated.
>>ACPI: (supports S0 S3 S4 S4bios S5)
>>
>>
>>My hardware is a HP compaq nc8000, Pentium-M.
>>The problem is that with the -mm kernels the CPU fan stops to work -
>>causing temperature to raise very high ...... :-(
>>
>>Are there any known problems ?
>>
>>
>
>Please take stock 2.6.8.1 and apply the latest patch here:
>http://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/patches/release/2.6.8/
>and give it a go.
>
>This will bring your kernel up to the same ACPI patch that is in the -mm
>tree, but without all the other stuff in the mm tree.
>
>If it fails, then ACPI broke. If it works, then something in -mm broke
>ACPI.
>
>thanks,
>-Len
>
>

I just tried 2.6.8.1 with the given patch, same result.
As soon as ACPI starts up, TZ2 disappears and the cpu fan stops working.

If you need further information (lspci etc.) - please let me know, thanks !


-Maximilian



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