ACK: [SRU][N:linux][PATCH 0/1] x86: tsc: Fix TSC clock source being disabled when SNC is enabled causing fall back to less precise HPET
Tim Whisonant
tim.whisonant at canonical.com
Sat Jan 10 01:06:15 UTC 2026
On Fri, Jan 09, 2026 at 05:16:16PM +0100, Thibault Ferrante wrote:
> BugLink: https://bugs.launchpad.net/bugs/2138120
>
> [ Impact ]
>
> * Performance degradation can occur after the first power cycle due to using the less precise HPET instead of TSC.
>
> [ Fix ]
>
> * Clean cherry pick of :
> b4bac27 x86/tsc: Use topology_max_packages() to get package number
>
> [ Test Plan ]
>
> * Compiled
>
> [ Where problems could occur ]
>
> * TSC regression.
>
> [ Other Info ]
>
> * This is a public version of: https://bugs.launchpad.net/bugs/2115101
>
> Feng Tang (1):
> x86/tsc: Use topology_max_packages() to get package number
>
> arch/x86/kernel/tsc.c | 8 +++-----
> 1 file changed, 3 insertions(+), 5 deletions(-)
>
> --
> 2.51.0
>
Acked-by: Tim Whisonant <tim.whisonant at canonical.com>
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