From mboxrd@z Thu Jan 1 00:00:00 1970 From: klaus.dannecker@gmx.de (Klaus Dannecker) Date: Sun, 24 Nov 2013 19:26:05 +0100 Subject: [lttng-dev] make a trace_event in a modul (driver) In-Reply-To: References: <48CF5AC71E61DB46B70D0F388054EFFD267A5932@VAL-E-01.valcartier.drdc-rddc.gc.ca> <5291E675.8070908@gmx.de> Message-ID: <529244BD.7070407@gmx.de> Am 24.11.2013 17:01, schrieb J?r?mie Galarneau: > On Sun, Nov 24, 2013 at 6:43 AM, Klaus Dannecker wrote: >> Am 22.11.2013 19:54, schrieb Thibault, Daniel: >> >>>> how can I define a "tracing"group , so I no longer need the sudo command? >>> $ sudo addgroup --system tracing >>> $ sudo adduser username tracing >>> >>> You must log off and back on for group membership to be activated. >>> >>> You may also want to add lttng-sessiond as a service: >>> >>> $ sudo ln --symbolic /lib/init/upstart-job /etc/init.d/lttng-sessiond >>> >>> And create /etc/init/lttng-sessiond.conf containing: >>> >>> description "LTTng central tracing registry session daemon" >>> author "St?phane Graber " >>> start on local-filesystems >>> stop on runlevel [06] >>> respawn >>> exec lttng-sessiond >>> >>> You can then start the session daemon with 'sudo service lttng-sessiond >>> start' (stop it with 'stop', restart with 'restart'). >> Thanks, now it works >> but when i >> $ lttng create >> $ lttng enable-event -k -a >> $ lttng start >> so, the function does not return! >> only 'strg c' terminated the fuktion. >> > Interesting. Would you mind running "lttng start" in verbose mode and > provide the output? > lttng -vvv start klaus at ubuntu:~$ sudo lttng -vvv start DEBUG2 [2854/2854]: Config file path found: /home/klaus (in get_session_name() at utils.c:57) DEBUG1 [2854/2854]: Session name found: auto-20131124-091639 (in get_session_name() at utils.c:58) DEBUG1 [2854/2854]: Starting tracing for session auto-20131124-091639 (in start_tracing() at commands/start.c:81) DEBUG1 [2854/2854]: LSM cmd type : 16 (in send_session_msg() at lttng-ctl.c:131) 'ctrl c' klaus at ubuntu:~$ >> the same by >> $ lttng stop >> and >> $ lttng destroy >> >> but >> $ lttng create >> $ lttng enable-event -u -a >> $ lttng start >> $ lttng stop >> $ lttng destroy >> -> works >> >> how can i remove all installed lttng_modules, >> so that I can start again from the beginning? >> > lttng-modules does not define an "uninstall" make target. I guess > you'll have to delete the modules manually under > /lib/modules/$(uname -r)/extra > /lib/modules/$(uname -r)/extra/lib > /lib/modules/$(uname -r)/extra/probes > > I'm wondering if it could be a conflict with your distribution's > lttng-modules-dkms package... Could you verify that it is not > installed? now i make two experiments: first: install ubuntu 12.04 in vmware $ git clone git://git.lttng.org/lttng-tools.git $ git clone git://git.lttng.org/lttng-modules.git $ git clone git://git.lttng.org/lttng-ust.git $ git clone git://git.lttng.org/userspace-rcu.git compile and install all like: https://www.ibm.com/developerworks/community/blogs/fe313521-2e95-46f2-817d-44a4f27eba32/entry/howto_tracing_with_lttng?lang=en now i have the same problem. second: install ubuntu 12.04 in vmware sudo apt-get install lttng-tools ... Building only for 3.8.0-29-generic Building initial module for 3.8.0-29-generic Error! Bad return status for module build on kernel: 3.8.0-29-generic (i686) Consult /var/lib/dkms/lttng-modules/2.0.2/build/make.log for more information. Setting up lttng-tools (2.0.1-0ubuntu1) ... /usr/sbin/addgroup lttng-sessiond start/running, process 5515 Processing triggers for libc-bin ... ldconfig deferred processing now taking place klaus at ubuntu:~$ $ git clone git://git.lttng.org/lttng-modules.git compile and install lttng_moules now works lttng start, stop and destroy! Klaus >> Thanks >> Klaus >> sorry, i am a linux beginner > No problem, we all were at some point :) > > J?r?mie > >> >>> Daniel U. Thibault >>> Protection des syst?mes et contremesures (PSC) | Systems Protection & >>> Countermeasures (SPC) >>> Cyber s?curit? pour les missions essentielles (CME) | Mission Critical >>> Cyber Security (MCCS) >>> R & D pour la d?fense Canada - Valcartier (RDDC Valcartier) | Defence R&D >>> Canada - Valcartier (DRDC Valcartier) >>> 2459 route de la Bravoure >>> Qu?bec QC G3J 1X5 >>> CANADA >>> Vox : (418) 844-4000 x4245 >>> Fax : (418) 844-4538 >>> NAC : 918V QSDJ >>> Gouvernement du Canada | Government of Canada >>> >> >> >> _______________________________________________ >> lttng-dev mailing list >> lttng-dev at lists.lttng.org >> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev > >