Re: Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-7

From: Ingo Molnar
Date: Wed Dec 01 2004 - 11:10:01 EST



* Ingo Molnar <mingo@xxxxxxx> wrote:

> this shows an interesting phenomenon: for whatever reason IRQ5's
> thread didnt run until timestamp 1.946ms. There is lots of idle time
> between timestamps 0.012ms and 1.946ms, so this must be some weird
> condition.

ok, this could be ACPI CPU-sleep related. Could you disable all ACPI
options in your .config (as a workaround), and re-check whether the
xruns still occur?

Ingo
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