[PATCH 03/13] nptl: Remove clockwait_tid

[Florian Weimer]

* Andreas Schwab:

> On Dez 14 2020, Florian Weimer via Libc-alpha wrote:
>
>> This uses FUTEX_WAIT.  But the replacement,
>> __futex_abstimed_wait_common64, uses FUTEX_WAIT_BITSET.
>
> FUTEX_WAIT is exactly equivalent to
> FUTEX_WAIT_BITSET/FUTEX_BITSET_MATCH_ANY.

Hmm.  I will continue debugging.  I encounter a missed wakeup in
pthread_join after making some changes that only should affect timing
(intl/tst-gettext6 is among the failures).

Reverting this patch here seems to help.

Thanks,
Florian
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