In Linux/ARM environment, a robust mutex can't catch the timeout result
when it is already owned by other thread and requests to try lock with
a specific time value(pthread_mutex_timedlock). The futex already returns
the ETIMEDOUT result but there is no check the return value and it makes
a deadlock.
* nptl/lowlevelrobustlock.c: Implement ETIMEDOUT logic.
+2016-07-07 Jiyoung Yun <t2wish@gmail.com>
+
+ [BZ #20263]
+ * nptl/lowlevelrobustlock.c: Implement ETIMEDOUT logic.
+
2016-07-06 Stefan Liebler <stli@linux.vnet.ibm.com>
* sysdeps/s390/linkmap.h (struct link_map_machine):
|| !defined lll_futex_timed_wait_bitset)
lll_futex_timed_wait (futex, newval, &rt, private);
#else
- lll_futex_timed_wait_bitset (futex, newval, abstime,
- FUTEX_CLOCK_REALTIME, private);
+ int err = lll_futex_timed_wait_bitset (futex, newval, abstime,
+ FUTEX_CLOCK_REALTIME, private);
+ /* The futex call timed out. */
+ if (err == -ETIMEDOUT)
+ return -err;
#endif
try: