[lttng-dev] beginner question

Loris Degioanni loris.degioanni at gmail.com
Sat May 5 00:14:17 EDT 2012

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?


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