Glibc pthread_rwlock_timed*() Optimization Bug

[Florian Weimer]

* Florian Fainelli via Libc-help:

> On 9/7/2021 2:31 PM, Justin Chen wrote:
>> Hello all,
>> We are seeing a faulty compiler optimization with
>> pthread_rwlock_timed*() when cross-compiling glibc for arm. This is
>> leading to deadlocks with some of our software.
>
> FWIW, this was previously reported, along with a reproducer here:
>
> https://sourceware.org/bugzilla/show_bug.cgi?id=24774
>
> the comment about not triggering bug 24774 does not seem to related to
> that bug, was it a typo?

Yes, it was a typo.

Thanks,
Florian