Messages in this thread | | | From | "Brown, Len" <> | Subject | RE: [RFC] x86, tsc: Add kcmdline args for skipping tsc calibration sequences | Date | Sat, 14 Jul 2018 02:40:48 +0000 |
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We disabled CPUID-based TSC calibration on SKX in December for several reasons. If you still have it enabled, you need this patch:
commit b511203093489eb1829cb4de86e8214752205ac6 x86/tsc: Fix erroneous TSC rate on Skylake Xeon
If you are referring to another platform that has CPUID-TSC calibration... it should still work on an over-clocked system. Over-clocked platforms should use exactly the same reference crystal as non-overclocked platforms, but should modify the crystal/core multiplier. If you are changing the reference crystal, then I believe you are using an un-supported hardware configuration, and my ability to support you is limited.
-Len
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