Re: [PATCH v2 2/2] clocksource: Use get_random_bytes() in clocksource_verify_choose_cpus()

[Thomas Gleixner]

On Wed, Jan 29 2025 at 12:03, Waiman Long wrote:
> On 1/29/25 11:34 AM, Sebastian Andrzej Siewior wrote:
>> But all this would avoid having to run with disabled preemption within
>> clocksource_verify_choose_cpus() while having the guarantees you need.
>
> I guess we will have to break clocksource_verify_choose_cpus() into 2 
> separate parts, one without preemption disabled and other one with 
> preemption disabled. I don't think it is a good idea to just use 
> migrate_disable() as we may get too much latency that can affect the 
> test result.
>
> I will send out a v3 patch to fix that.

I zap the topmost commit in timers/urgent then.