Messages in this thread | | | Date | Mon, 24 Jul 2006 17:59:23 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: remove cpu hotplug bustification in cpufreq. |
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On Mon, 24 Jul 2006, Chuck Ebbert wrote: > > I thought just the 'ondemand' governor was a problem?
The ondemand governor seems to be singled out not because it has unique problems, but because it seems to be used by Fedora Core for some strange reason.
I would judge that any bugs in cpufreq_ondemand.c are likely equally evident in cpufreq_conservative.c, for example. I think the two have the same background, and seem to have the same broken locking.
> That thing has been broken since day 1 AFAICT. There are lots of > reports of problems with it on the list.
See above. I seriously doubt this is ondemand-specific. The whole cpufreq locking seems to be very screwed up.
The current -git tree will complain about some of the more obvious problems. If you see a "Lukewarm IQ" message, it's a sign of somebody re-taking a cpu lock that is already held.
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