I just installed the lttng package on a fresh Ubuntu 12 machine, and I'm
following the tutorial at http://lttng.org/quickstart.
The enable-event step fails with this error:
# lttng enable-event sched_switch,sys_open -k
kernel event sched_switch created in channel channel0
Error: Event sys_open: Enable kernel event failed (channel channel0,
session mysession)
Warning: Some command(s) went wrong
What am I doing wrong?
Loris
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