Hi, You need to be root to use the kernel tracer, or alternatively, your user needs to be in the "tracing" group. But on a single-user machine it might be a bit more simple to just use "sudo".
The quickstart example uses the root user directly, which is why the commands start with "#". On 12-03-01 10:08 PM, 岳鹏 wrote: > lttngers: > hello,I have met a problem when I first used the tool lttng. > The situation as following: > my system is ubuntu 11.10,and the kernel's version is 3.0.0-12,the lttng's > version which I used is lttng2.0. > I have installed this tool successfully,following the guide on > https://launchpad.net/~lttng/+archive/ppa. > But when I use lttng following > https://bugs.lttng.org/projects/lttng-tools/wiki,I met a issue. > the terminal is: > *yuepeng@cheery-lucifer:~$ lttng create mysession Replace this with "sudo lttng create mysession" > Session mysession created. > Traces will be written in > /home/yuepeng/lttng-traces/mysession-20120302-105623 > yuepeng@cheery-lucifer:~$ lttng enable-event -a -k and "sudo lttng enable-event -a -k" here Let us know if you still have problems. The Oneiric packages in the PPA are still fresh, so testing is appreciated ;) Cheers, -- Alexandre Montplaisir DORSAL lab, École Polytechnique de Montréal _______________________________________________ lttng-dev mailing list lttng-dev@lists.lttng.org http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
