Messages in this thread | | | Date | Sun, 7 Aug 2005 14:24:25 -0700 | From | Tim Hockin <> | Subject | Re: Lost Ticks on x86_64 |
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On Sun, Aug 07, 2005 at 02:51:19PM -0400, Lee Revell wrote: > > It's most likely bad SMM code in the BIOS that blocks the CPU too long > > and is triggered in idle. You can verify that by using idle=poll > > (not recommended for production, just for testing) and see if it goes away. > > > > WTF, since when do *desktops* use SMM? Are you telling me that we have > to worry about these stupid ACPI/SMM hardware bugs on the desktop too?
SMM is how BIOSes do legacy support (which stops at OS-handover). It's also how some BIOSes do ECC reporting and logging.
We just do pci tweaks to turn it off in the OS. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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