Hi, What steps did you use to install LTTng?
Also can you please paste the output of: $ apt-cache policy lttng-modules-dkms Thanks, -- Alexandre Montplaisir DORSAL lab, École Polytechnique de Montréal On 12-07-29 04:26 PM, Rui Han wrote: > Hi, > > I used lttng last week and didn't touch it ever since. I am trying to use > it again. I use lttng list -k, it give me error messages: > > FATAL: Module lttng_tracer not found. > Error: Unable to load module lttng-tracer > Error: Unable to remove module lttng-tracer > Warning: No kernel tracer available > Error: Unable to list kernel events > > I run kernel tracing as root. At first, I thought I have to start the > daemon by lttng-sessiond command. It gave me the error: "Error: Already > running daemon." At this time, I can create session, it gave "Session > session created. Traces will be written in > /root/lttng-traces/session-20120729-160806". However, it failed to generate > a single term of tracing. While I tried lsmod, there are no lttng related > module in the list. Which I remember there were several. The same thing > happened to my two ubuntu systems. I restarted the system, it still doesn't > work. Does any one know how to make lttng work again in this situation? > > Thank you very much. > > Best regards, > Rui _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
