ACK / APPLIED[Unstable]: [SRU] [B/D/E/Unstable/OEM-B/OEM-OSP1-B] [PATCH 0/2] Disable unreliable HPET on CFL/ICL systems
Seth Forshee
seth.forshee at canonical.com
Mon Nov 11 23:59:35 UTC 2019
On Wed, Oct 30, 2019 at 10:01:47PM +0800, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1840239
>
> [Impact]
> TSC marked unstable by skewed HPET after Intel SoC reached PC10 state.
>
> [Fix]
> Disable HPET on affected SoC generations, currently happens to CFL and
> ICL.
>
> [Test]
> I can confirm disabling HPET can avoid this issue.
>
> [Regression Potential]
> Low. TSC on recent Intel SoC is now an invariant clocksource, so it's
> harmless to disable HPET on these platforms.
Acked-by: Seth Forshee <seth.forshee at canonical.com>
Applied to unstable/master, thanks!
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