diff options
| author | Riley Andrews <riandrews@google.com> | 2015-10-02 00:39:53 -0700 |
|---|---|---|
| committer | John Stultz <john.stultz@linaro.org> | 2016-02-16 13:52:31 -0800 |
| commit | 7abc800d049ee8e673acab90032e7cfbad1600a6 (patch) | |
| tree | f2ca8f178a59195d377538ab040667a1f4095b8d /kernel | |
| parent | b3bb0e5bbf24780300621d69e6ffbdcc11c72358 (diff) | |
sched: add sched blocked tracepoint which dumps out context of sleep.
Decare war on uninterruptible sleep. Add a tracepoint which
walks the kernel stack and dumps the first non-scheduler function
called before the scheduler is invoked.
Change-Id: I19e965d5206329360a92cbfe2afcc8c30f65c229
Signed-off-by: Riley Andrews <riandrews@google.com>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/fair.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index cfdc0e61066c..ba24bfe4ac51 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -2931,6 +2931,7 @@ static void enqueue_sleeper(struct cfs_rq *cfs_rq, struct sched_entity *se) } trace_sched_stat_blocked(tsk, delta); + trace_sched_blocked_reason(tsk); /* * Blocking time is in units of nanosecs, so shift by |