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
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