[lttng-dev] [PATCH urcu] fix: bump tests thread limit to 256

Michael Jeanson mjeanson at efficios.com
Wed Dec 9 13:15:37 EST 2020

Machines with more than 128 CPUs are becomming more common, the proper
fix here would be to dynamically allocate the array which we will do,
but in the meantime bump the limit to 256 to fix the problem on a 160
CPUs ppc64el system where this was reported.

Signed-off-by: Michael Jeanson <mjeanson at efficios.com>
Cc: Paul E. McKenney <paulmck at kernel.org>
Change-Id: Ib3cb5d8cb4515e6f626be33c2685fa38cb081782
 tests/common/api.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/common/api.h b/tests/common/api.h
index 2b72ec5..b15e588 100644
--- a/tests/common/api.h
+++ b/tests/common/api.h
@@ -108,7 +108,7 @@ static void spin_unlock(spinlock_t *sp)
 typedef pthread_t thread_id_t;
-#define NR_THREADS 128
+#define NR_THREADS 256
 #define __THREAD_ID_MAP_EMPTY ((thread_id_t) 0)
 #define __THREAD_ID_MAP_WAITING ((thread_id_t) 1)

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