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| author | Jiri Pirko <jpirko@redhat.com> | 2011-01-10 14:14:23 -0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-01-10 14:16:00 -0200 |
| commit | 12f7e0364375ba1ba55abcc5ac082b68fb526c80 (patch) | |
| tree | 464bf05ab148fcafb1aba919261c1d1467919abb /tools | |
| parent | aa7bc7ef73efc46d7c3a0e185eefaf85744aec98 (diff) | |
| download | lwn-12f7e0364375ba1ba55abcc5ac082b68fb526c80.tar.gz lwn-12f7e0364375ba1ba55abcc5ac082b68fb526c80.zip | |
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.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c index 54024d2a017e..abd4b8497bc4 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); |