On Sunday 21 February 2010, Guennadi Liakhovetski wrote: > Hi > > my 2xP-II@400MHz locks up with 2.6.32(.X) unless I specify "idle=*" on the > kernel command-line, where "*" is one of "poll," "mwait," "halt," and only > "nomwait" indeed locks it up. Last kernel known to work was 2.6.25. So, it > doesn't bother me all that much - I have a way to boot it, but maybe > someone would be interested to fix this (this system already has a few > quirks on the kernel command line, so, one more doesn't really hurt;)). > What interests me more - which of those shall I be using? From > Documentation/kernel-parameters.txt it looks like "mwait" should be best > for me? Or should I be using "halt?" "Poll" does indeed fry CPUs - raises > sys temperatures to 50 / 60 degrees C. Power-saving is not that much of a > concern for me - I only run that system occasionally, but it shouldn't > produce more heat than it must;) And since this system does have a broken > ACPI (Compaq AP400), I wouldn't try to be too smart with it. I guess "mwait" is the right one, but let's try to ask experts. Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html