http://bugzilla.kernel.org/show_bug.cgi?id=12304





------- Comment #26 from mprosi...@volny.cz  2009-01-01 14:56 -------
Little summary:

*** kernel 2.6.28

idle=processor.max_cstate=1
   freeze (with 100% certainty - after 4.5 hours)

idle=poll
   OK (with 90% certainty - without freeze for 20 hours)

idle=halt
   freeze (with 100% certainty - after 16 hours)



idle=nolapic_timer
   TODO (but did not freeze for 3.5 hours)

*** kernel 2.6.28 + debug patch (id=19553) from comment #21 (cstate.c)

idle=halt
   freeze (with 100% certainty - after 10 hours)

processor.max_cstate=1
   freeze (with 100% certainty - after 7 hours)


I also tried:
*** kernel 2.6.28 with CONFIG_NO_HZ=n

idle=poll
   freeze (with 100% certainty - after 14 hours)
----------------------------------------

So the only working setup (20h) is tickless kernel with idle=poll. 


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