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Open Source and information security mailing list archives
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Date: Sat, 1 Dec 2007 15:46:46 -0800 From: Arjan van de Ven <arjan@...radead.org> To: Mark Lord <lkml@....ca> Cc: "Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>, Andrew Morton <akpm@...ux-foundation.org>, abelay@...ell.com, lenb@...nel.org, rjw@...k.pl, linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org Subject: Re: 20000+ wake-ups/second in 2.6.24. Bug? On Sat, 01 Dec 2007 18:43:39 -0500 Mark Lord <lkml@....ca> wrote: > > Dagnabbit.. it's done it again.. went from 100-200 wakeups/sec > back up to 20000+ wakeups/sec. This time *with* the powertop patches > in place. > > Somethings broken in there, but I don't know what. > Or how to make it happen on demand.. it's fine after rebooting again. > > ??? > > At least now I know to look when I hear the fan turning on > when the system is otherwise supposed to be idle.. > > 2.6.23 did not have this problem. actually we have reports of 2.6.23 having the exact same problem. The thing is, "something" is causing the system to go into a state where the cpu throws us right out of the C-state the kernel asks for. Some people have seen that not loading yenta at all will just make this not happen at all... -- If you want to reach me at my work email, use arjan@...ux.intel.com For development, discussion and tips for power savings, visit http://www.lesswatts.org -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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