On Wed, 6 Sep 2023 10:37:18 -0400 Steven Rostedt rostedt@goodmis.org wrote:
Log details,
# ok 45 ftrace - test tracing error log support <47>[ 1373.662292] systemd-journald[90]: Sent WATCHDOG=1 notification. # ok 46 Test creation and deletion of trace instances while setting an event
It's definitely a race with the creation and deletion of instances.
I'm going to run it on my laptop VM and see if that reproduces it. My other VM is on a pretty powerful machine, and perhaps that's keeping it from hitting the race.
Putting in a while loop of:
# while :; do ./ftracetest test.d/instances/instance-event.tc ; done
eventually triggered the bug. Looks like this is really an existing bug not related to the eventfs, but the eventfs code actually opened up the window of this race.
Hopefully I'll have a fix shortly.
-- Steve