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Message-ID: <20100109164240.43b21247@infradead.org> Date: Sat, 9 Jan 2010 16:42:40 -0800 From: Arjan van de Ven <arjan@...radead.org> To: Dimitrios Apostolou <jimis@....net> Cc: Alex Chiang <achiang@...com>, Len Brown <lenb@...nel.org>, Bjorn Helgaas <bjorn.helgaas@...com>, Andrew Morton <akpm@...ux-foundation.org>, Yinghai Lu <yinghai@...nel.org>, linux-kernel@...r.kernel.org Subject: Re: High cpu temperature with 2.6.32, bisection shows commit 69d258 (fwd) On Sun, 10 Jan 2010 02:32:11 +0200 (EET) Dimitrios Apostolou <jimis@....net> wrote: > On Sat, 9 Jan 2010, Arjan van de Ven wrote: > > > On Sun, 10 Jan 2010 01:55:42 +0200 (EET) > > Dimitrios Apostolou <jimis@....net> wrote: > > > >> L8400B series Notebook PC > > > > can you try this patch? > > > > OK I'm compiling a new kernel right now but that will take a while, I > only have access to old hardware at the moment... What exactly this > patch does? > basically it appears that your machine, when the kernel asks for C2, exits C2 immediately again. The old algorithm somehow caught this and stopped asking for C2 most of the time; the new algorithm doesn't see any activity and asks for C2 again. What the patch does is tell the kernel to just not use C2 at all... -- Arjan van de Ven Intel Open Source Technology Centre 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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