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authorJiri Pirko <jpirko@redhat.com>2011-01-10 14:14:23 -0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-01-10 14:16:00 -0200
commit12f7e0364375ba1ba55abcc5ac082b68fb526c80 (patch)
tree464bf05ab148fcafb1aba919261c1d1467919abb /tools
parentaa7bc7ef73efc46d7c3a0e185eefaf85744aec98 (diff)
downloadlinux-2.6.38-lt-ux500-12f7e0364375ba1ba55abcc5ac082b68fb526c80.tar.gz
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 <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <20110110160417.GB2685@psychotron.brq.redhat.com> Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/builtin-sched.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 54024d2a017..abd4b8497bc 100644
--- 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);