On 8/14/23 02:09, Nysal Jan K.A wrote:
Observed occassional failures in the futex_wait_timeout test:
ok 1 futex_wait relative succeeds ok 2 futex_wait_bitset realtime succeeds ok 3 futex_wait_bitset monotonic succeeds ok 4 futex_wait_requeue_pi realtime succeeds ok 5 futex_wait_requeue_pi monotonic succeeds not ok 6 futex_lock_pi realtime returned 0 ......
The test expects the child thread to complete some steps before the parent thread gets to run. There is an implicit expectation of the order of invocation of futex_lock_pi between the child thread and the parent thread. Make this order explicit. If the order is not met, the futex_lock_pi call in the parent thread succeeds and will not timeout.
Fixes: f4addd54b161 ("selftests: futex: Expand timeout test") Signed-off-by: Nysal Jan K.A nysal@linux.ibm.com
Thank you. Applied to linux-kselftest next for Linux 6.6-rc1.
thanks, -- Shuah