On 12-05-05 12:42 AM, Julien Desfossez wrote: > Hi, > > On 05/05/12 12:14 AM, Loris Degioanni wrote: >> 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? > As of now, you can't enable system calls tracing one by one (sys_open is > a system call), it's either all of them or none. > > So if you want sched_switch and all the syscalls you have to do : > lttng enable-event -k sched_switch > lttng enable-event -k --syscall -a
Well, good to know I guess ;) I'll update the example on the website. Thanks for the catch Loris. Cheers, -- Alexandre Montplaisir DORSAL lab, École Polytechnique de Montréal _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
