Hello, Sorry for being away a few days. My thesis opening proposal is hiting the deadline, which happens to be same date for GSoC. Now I can be fully devoted to lttng and compose my GSoC proposal.
Anyway, I may have found a bug.I'm not very sure. Here is my log: =================================================== [lynus@slave1 ~]$lttng create Spawning a session daemon Session auto-20140319-081547 created. Traces will be written in /home/lynus/lttng-traces/auto-20140319-081547 [lynus@slave1 ~]$ lttng enable-event page_block -k Error: Event page_block: Tracing the kernel requires a root lttng-sessiond daemon, as well as "tracing" group membership or root user ID for the lttng client. (channel channel0, session auto-20140319-081547) Warning: Some command(s) went wrong [lynus@slave1 ~]$ lttng destroy Session auto-20140319-081547 destroyed [lynus@slave1 ~]$ sudo su - [sudo] password for lynus: root@slave1:~# lttng create Spawning a session daemon Warning: No tracing group detected Session auto-20140319-081615 created. Traces will be written in /root/lttng-traces/auto-20140319-081615 PERROR [4774/4882]: bind inet: Address already in use (in lttcomm_bind_inet_sock() at inet.c:109) Warning: An other session daemon is using this JUL port. JUL support will be deactivated not interfering with the tracing. root@slave1:~# lttng create Session auto-20140319-081620 created. Traces will be written in /root/lttng-traces/auto-20140319-081620 root@slave1:~# [END] 2014/3/19 0:04:31 ====================================================== These command is issued right after my machine is booted. And it failed every time if I try to enable kernel event as non-root user first then switch to root to create session. If I directly switch to root and create a seesion, everything is normal. So I guess I may have come across a bug. Any comment?
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