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author | Siddhesh Poyarekar <siddhesh@redhat.com> | 2012-10-05 18:52:35 +0530 |
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committer | Siddhesh Poyarekar <siddhesh@redhat.com> | 2012-10-05 18:52:36 +0530 |
commit | c30e8edf7c56e55a81173da39f3e721ab17b9db6 (patch) | |
tree | cff2d492fe0d34bf49af97371eb4260cb193ae3d /po/rw.po | |
parent | c2b598a94512c5d754b25c77399032e87c1f2dd5 (diff) | |
download | glibc-c30e8edf7c56e55a81173da39f3e721ab17b9db6.tar.gz glibc-c30e8edf7c56e55a81173da39f3e721ab17b9db6.tar.xz glibc-c30e8edf7c56e55a81173da39f3e721ab17b9db6.zip |
Unlock mutex before going back to waiting for PI mutexes
[BZ #14417] A futex call with FUTEX_WAIT_REQUEUE_PI returns with the mutex locked on success. If such a successful thread is pipped to the cond_lock by another spuriously woken waiter, it could be sent back to wait on the futex with the mutex lock held, thus causing a deadlock. So it is necessary that the thread relinquishes the mutex before going back to sleep.
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