Messages in this thread | | | Subject | RE: [2.6.12] x86-64 IO-APIC + timer doesn't work | Date | Sat, 18 Jun 2005 21:57:27 -0700 | From | "Pallipadi, Venkatesh" <> |
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>-----Original Message----- >From: Andi Kleen [mailto:ak@muc.de] >Sent: Saturday, June 18, 2005 6:34 PM >To: Alistair John Strachan >Cc: linux-kernel@vger.kernel.org; ACurrid@nvidia.com; >Pallipadi, Venkatesh >Subject: Re: [2.6.12] x86-64 IO-APIC + timer doesn't work > >> Despite the fact that this wasn't documented in the BIOS >update, an update for >> my board (MS-7030 Neo Platinum by MSI) supposedly fixing >"Fan Function" >> actually corrects the IO-APIC and NMI bugs. I now get the >following in dmesg >> instead: >> >> Calibrating delay loop... 3973.12 BogoMIPS (lpj=1986560) >> Mount-cache hash table entries: 256 >> CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) >> CPU: L2 Cache: 512K (64 bytes/line) >> CPU: AMD Athlon(tm) 64 Processor 3000+ stepping 00 >> Using local APIC timer interrupts. >> Detected 12.561 MHz APIC timer. >> testing NMI watchdog ... OK. >> >> So I'm a happy man. Whether this is at all related to the >problems I was >> having before, I don't really know. If the problem doesn't >reoccur, I could >> very well have wasted your time. > >Hmm - I suspect I know what's happening. The older BIOS >probably had some long >running SMM code that breaks the BogoMips computation occasionally >and that breaks the timer check later which relies on usable BogoMips. > >There was a patch for that from Venkatesh (because it showed on some >other machines too), but it didn't seem to have made it into 2.6.12 > >Venkatesh, can you push your calibrate_delay patch please? ? > > >-Andi
That patch is in mm tree.
http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.12-rc 6/2.6.12-rc6-mm1/broken-out/platform-smis-and-their-interferance-with-ts c-based-delay-calibration.patch
http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.12-rc 6/2.6.12-rc6-mm1/broken-out/platform-smis-and-their-interferance-with-ts c-based-delay-calibration-fix.patch
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