IRC, freenode, #hurd, 2012-08-17

<braunr> pthread_cond_timedwait and pthread_mutex_timedlock *can* produce
  segfaults in our implementation
<braunr> if a timeout happens, but before the thread dequeues itself,
  another tries to wake it, it will be dequeued twice
<braunr> this is the issue i spent a week on when working on fixing select

select