runaway intr problems: powerd and/or hw.acpi.cpu.cx_lowest related

[Doug Barton]

On 08/27/2010 10:12 AM, Andriy Gapon wrote:
> Cool!
> Meanwhile can you double-check what timers does Linux use there?
> (No idea how to do that, especially if it's NO_HZ kernel).

Sure, if someone can tell me what to do. I know even less about linux 
than I do about freebsd. :)  First thing that came to mind:

sysctl -a | grep -i time
kernel.sched_time_avg = 1000
kernel.timer_migration = 1
kernel.sched_rt_runtime_us = 950000
kernel.hung_task_timeout_secs = 120
fs.lease-break-time = 45
dev.parport.default.timeslice = 200
dev.parport.default.spintime = 500
net.core.xfrm_aevent_etime = 10

Also this looks promising from /proc: 
http://people.freebsd.org/~dougb/timer_list.txt


Doug

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