On Monday, January 31, 2011, Richard Schütz wrote:

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I'll compile a kernel with CONFIG_NO_HZ to see what happens but how do I
disable cpuidle during boot? I've checked the kernel-parameters.txt but
there's no cpuidle related boot parameter there.

Booting with intel_idle.max_cstate=0 should do the trick.

intel_idle.max_cstate=0 causes a fallback to the acpi_idle driver. So it 
does not disable the C-states directly.

What about not building the acpi_idle driver, then?

Rafael