Description of problem:

This one is related to 429290.

pthread_cond_timedwait is implemented using the futex syscall with the
FUTEX_WAIT command. Because the FUTEX_WAIT command takes a relative time as a
timeout it cannot be used for realtime purposes and as a consequence,
pthread_cond_timedwait can't be either. 

We are asking that once 354744 is fixed, the pthread_cond_timedwait command be
fixed to take advantage of the new futex command.

The reason we are reporting the same issue in 2 different bugs is that, as a
first step, it would ok for us to only have the new futex command and not the
libc fix.

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