Messages in this thread | | | From | Andrew Lutomirski <> | Date | Wed, 3 Aug 2011 12:22:04 -0400 | Subject | Re: [PATCH 2/2] x86: Enable monitor/mwait on Intel if BIOS hasn't already |
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On Wed, Aug 3, 2011 at 12:15 PM, Len Brown <lenb@kernel.org> wrote: > On Wed, 3 Aug 2011, Andy Lutomirski wrote: > >> I have a Sandy Bridge machine with an Intel BIOS that enables >> monitor/mwait on all but the boot CPU. With this patch, intel_idle >> works. > > What machine has this BIOS bug, and are you running > the latest version of the BIOS?
Intel DQ67SW, version SWQ6710H.86A.0051.2011.0413.1154. This is not quite up-to-date -- I'll test a newer BIOS.
(Enabling monitor/mwait on some but not all CPUs is obnoxious, too. I think it's just dumb luck that Linux notices at all and doesn't crash.)
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