Re: [PATCH] clockevents: Prevent timer interrupt starvation

[Thomas Gleixner]

On Fri, Apr 03 2026 at 14:16, Peter Zijlstra wrote:
>>  	delta = ktime_to_ns(ktime_sub(expires, ktime_get()));
>> +
>> +	/* Don't reprogram when a forced event is pending */
>> +	if (dev->next_event_forced && delta <= (int64_t)dev->min_delta_ns)
>> +		return 0;
>> +
>>  	if (delta <= 0)
>>  		return force ? clockevents_program_min_delta(dev) : -ETIME;
>>  
>
> This last hunk seems duplicate of the clockevents_program_min_delta()
> change, that also will bail when next_event_forced is set.

Yeah. I was planning to look into it with brain awake today again.

> Also, I note, thing (except shutdown) will ever clear next_event_forced;
> and I'm thinking that any interrupt or normal reprogram should be doing
> that.

See my reply to Calvin. :)