Public bug reported:
[Impact]
TSC marked unstable by skewed HPET after Intel CFL-H SoC reached PC10
state.
[Fix]
Disable HPET on CFL-H SoC.
[Test]
I can confirm disabling HPET can workaround 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.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Affects: linux-oem (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-oem-osp1 (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: Incomplete
** Affects: linux-oem (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: linux-oem-osp1 (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Disco)
Importance: Undecided
Status: Incomplete
** Affects: linux-oem (Ubuntu Disco)
Importance: Undecided
Status: Invalid
** Affects: linux-oem-osp1 (Ubuntu Disco)
Importance: Undecided
Status: Invalid
** Affects: linux (Ubuntu Eoan)
Importance: Undecided
Status: Incomplete
** Affects: linux-oem (Ubuntu Eoan)
Importance: Undecided
Status: Invalid
** Affects: linux-oem-osp1 (Ubuntu Eoan)
Importance: Undecided
Status: Invalid
** Tags: oem-priority originate-from-1852112 somerville
** Also affects: linux-oem (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux-oem-osp1 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Eoan)
Importance: Undecided
Status: New
** Also affects: linux-oem (Ubuntu Eoan)
Importance: Undecided
Status: New
** Also affects: linux-oem-osp1 (Ubuntu Eoan)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Disco)
Importance: Undecided
Status: New
** Also affects: linux-oem (Ubuntu Disco)
Importance: Undecided
Status: New
** Also affects: linux-oem-osp1 (Ubuntu Disco)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux-oem (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux-oem-osp1 (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux-oem (Ubuntu Disco)
Status: New => Won't Fix
** Changed in: linux-oem (Ubuntu Eoan)
Status: New => Invalid
** Changed in: linux-oem (Ubuntu Disco)
Status: Won't Fix => Invalid
** Changed in: linux-oem-osp1 (Ubuntu Disco)
Status: New => Invalid
** Changed in: linux-oem-osp1 (Ubuntu Eoan)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1852216
Title:
Disable unreliable HPET on CFL-H system
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