Re: [PATCH] x86/tsc: Extend the watchdog check exemption to 4S/8S machine

From: Peter Zijlstra
Date: Tue Oct 11 2022 - 10:02:26 EST


On Tue, Oct 11, 2022 at 09:33:26PM +0800, Zhang Rui wrote:

> topology_max_packages() or variable logical_packages can tell the
> maximum packages.
> But this check_system_tsc_reliable() is done in early boot phase where
> we have boot cpu only. And the cpu topology is not built up at this
> stage.

Is there a problem with disabling the TSC watchdog later in boot --
after SMP bringup for example?