Messages in this thread Patch in this message | | | From | Alexander Shishkin <> | Subject | [PATCH] perf: Fix inheritance of aux_output groups | Date | Fri, 4 Oct 2019 15:57:29 +0300 |
| |
Commit
b43762ef010 ("perf: Allow normal events to output AUX data")
forgets to configure aux_output relation in the inherited groups, which results in child PEBS events forever failing to schedule.
Fix this by setting up the AUX output link in the inheritance path.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> --- kernel/events/core.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/kernel/events/core.c b/kernel/events/core.c index f5bb2557d5f6..761995f21b30 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -12024,6 +12024,10 @@ static int inherit_group(struct perf_event *parent_event, child, leader, child_ctx); if (IS_ERR(child_ctr)) return PTR_ERR(child_ctr); + + if (sub->aux_event == parent_event && + !perf_get_aux_event(child_ctr, leader)) + return -EINVAL; } return 0; } -- 2.23.0
| |