acpi schedule() calls rely on taskswitch?

DISCUSSION Markus Pargmann 1 participant 1 message Sep 5, 2011 ACPI

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Markus Pargmann

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2011-09-05 15:57 UTC #0 lore raw

Hi,

I am currently testing an alternative CPU-scheduler and have problems when ACPI is activated.
If the scheduler does not change the currently running task after a call of schedule(), the kernel hangs with ACPI activated. The kernel has no problems with acpi=off.

Is there any ACPI code that relies on a taskswitch when calling schedule?

I saw this behaviour with linux-2.6.38.6 and an AMD Athlon II M320.

Thanks,

Markus