The Lttng version installed is " Dominus Vobiscum" The lttng tools: 2.3.1 Lttng-ust 2.3.1 Lttng modules 2.3.4
And The session running is 28664 root 0:00 ./lttng-sessiond -vvv --consumerd64-path=/tmp/lttng-build-root/lib/lttng/libexec/lttng-consumerd 29027 root 0:00 lttng-consumerd --quiet -u --consumerd-cmd-sock /var/run/lttng/ustconsumerd64/command --consumerd-err-sock /var/run/lttng/ustconsumerd64/error I'm also able to run the easy-ust and generate the traces successfully if I create and run from an user not as root user. But the kernel traces are generated fine for even root user but for ust it runs fine only with non-root user in my case. And the behavior is vice versa if I try the kernel tracer from user # lttng list -k Error: Unable to list kernel events: Tracing the kernel requires a root lttng-sessiond daemon, as well as "tracing" group membership or root user ID for the lttng client. Error: Command error Will it be possible to run both kernel and ust to run and create the traces from root user itself? And if you could explain why ust expects the user? Regards, GMK -----Original Message----- From: Thibault, Daniel [mailto:daniel.thiba...@drdc-rddc.gc.ca] Sent: Monday, December 09, 2013 7:24 PM To: Manikandan Govindaswamy; Jérémie Galarneau Cc: lttng-dev@lists.lttng.org Subject: RE: [lttng-dev] No trace files are generated for UST A first glance through the log reveals these possibly significant entries: DEBUG1 [15860/15996]: Sending response (size: 16, retcode: Unknown error code) (in thread_manage_clients() at main.c:3803) And later PERROR [16322/16322]: sendmsg: Broken pipe (in lttcomm_send_unix_sock() at unix.c:218) What were the client commands used to generate the log? And what was the running environment (which versions of the LTTng suite were installed, and which session daemon(s) is(are) running? ). 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 lttng-dev@lists.lttng.org http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
