forked from rpms/glibc
38 lines
1.4 KiB
Diff
38 lines
1.4 KiB
Diff
commit 06865865151579d1aa17d38110060a68b85c5d90
|
|
Author: Stafford Horne <shorne@gmail.com>
|
|
Date: Sat Sep 25 17:02:06 2021 +0900
|
|
|
|
pthread/tst-cancel28: Fix barrier re-init race condition
|
|
|
|
When running this test on the OpenRISC port I am working on this test
|
|
fails with a timeout. The test passes when being straced or debugged.
|
|
Looking at the code there seems to be a race condition in that:
|
|
|
|
1 main thread: calls xpthread_cancel
|
|
2 sub thread : receives cancel signal
|
|
3 sub thread : cleanup routine waits on barrier
|
|
4 main thread: re-inits barrier
|
|
5 main thread: waits on barrier
|
|
|
|
After getting to 5 the main thread and sub thread wait forever as the 2
|
|
barriers are no longer the same.
|
|
|
|
Removing the barrier re-init seems to fix this issue. Also, the barrier
|
|
does not need to be reinitialized as that is done by default.
|
|
|
|
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
(cherry picked from commit 9874ca536b1d0662b1cea46af3ce09a4d42aeb32)
|
|
|
|
diff --git a/sysdeps/pthread/tst-cancel28.c b/sysdeps/pthread/tst-cancel28.c
|
|
index 627cbc8160191c5c..9286c159b3be5e8a 100644
|
|
--- a/sysdeps/pthread/tst-cancel28.c
|
|
+++ b/sysdeps/pthread/tst-cancel28.c
|
|
@@ -69,7 +69,6 @@ do_test (void)
|
|
|
|
xpthread_cancel (timer_thread);
|
|
|
|
- xpthread_barrier_init (&barrier, NULL, 2);
|
|
xpthread_barrier_wait (&barrier);
|
|
|
|
return 0;
|