Re: [patch V4 10/14] futex: Provide infrastructure to plug the non contended robust futex unlock race

[Thomas Gleixner]

On Wed, May 27 2026 at 22:08, André Almeida wrote:
> Em 02/04/2026 12:21, Thomas Gleixner escreveu:
>> +	/*
>> +	 * Avoid dereferencing current->mm if not returning from interrupt.
>> +	 * current->rseq.event is going to be used subsequently, so bringing the
>> +	 * cache line in is not a big deal.
>> +	 */
>> +	if (!current->rseq.event.user_irq)
>> +		return;
>> +
>
> For some reason, this if is always true for aarch64. I had to remove it 
> in order to make the test work. Any idea why?

No. That looks like a bug on the arm64 side.