perf sched: Use PTHREAD_STACK_MIN to avoid pthread_attr_setstacksize(…

…) fail on ppc64: /usr/include/bits/local_lim.h:#define PTHREAD_STACK_MIN 131072 therefore following set of commands: gives: perf.2.6.37test: builtin-sched.c:493: create_tasks: Assertion `!(err)' failed. So make sure we do not set stack size lower than PTHREAD_STACK_MIN. Cc: Ingo Molnar <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Jiri Pirko <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
hanmiltonxing · Jan 10, 2011 · 12f7e03 · 12f7e03
1 parent aa7bc7e
commit 12f7e03
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
@@ -489,7 +489,8 @@ static void create_tasks(void)
 
 	err = pthread_attr_init(&attr);
 	BUG_ON(err);
-	err = pthread_attr_setstacksize(&attr, (size_t)(16*1024));
+	err = pthread_attr_setstacksize(&attr,
+			(size_t) max(16 * 1024, PTHREAD_STACK_MIN));
 	BUG_ON(err);
 	err = pthread_mutex_lock(&start_work_mutex);
 	BUG_ON(err);