---------------------------------------------------------------------- Date: Wed, 19 Mar 2014 01:19:52 +0800 From: Lingyu Zhu <[email protected]> To: Jonathan Rajotte <[email protected]>
> Thanks for point that out. But My point is creating session would fail as > root, only after I failed enable kernel event as normal user. Your session creation remains successful. You just can't do kernel tracing from it. You could have gone on to enable user-space events, etc. The later JUL problem is because you did not 'kill' the local session daemon the first lttng command spawned. In a nutshell, use 'lttng <command>' for local user-space tracing, 'sudo -H lttng <command>' for kernel and multiple user-space tracing. Alternately, join the 'tracing' group (log off and back on for the change to take), then use 'lttng <command>' for all tracing -but make sure the root daemon is the only lttng session daemon running. As late as lttng 2.3, the lttng -g option does not work. Has it been fixed? Daniel U. Thibault Protection des systèmes et contremesures (PSC) | Systems Protection & Countermeasures (SPC) Cyber sécurité pour les missions essentielles (CME) | Mission Critical Cyber Security (MCCS) R & D pour la défense Canada - Valcartier (RDDC Valcartier) | Defence R&D Canada - Valcartier (DRDC Valcartier) 2459 route de la Bravoure Québec QC G3J 1X5 CANADA Vox : (418) 844-4000 x4245 Fax : (418) 844-4538 NAC : 918V QSDJ <http://www.travelgis.com/map.asp?addr=918V%20QSDJ> Gouvernement du Canada | Government of Canada <http://www.valcartier.drdc-rddc.gc.ca/> _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
