Based on http://lists.lttng.org/pipermail/lttng-dev/attachments/20130411/7256c589/attachment-0001.txt
> The main idea of triggers is for the user to be able to set an action on a > session triggered by a certain event of the system. To illustrace the concept, > here is an example that we will actually propose. [...] To illustrate the concept [...] > Let say an application is being traced and on core dump, we would like to > automatically snapshot the session and proceed to analysis later on. Let's say an [...] and, on core dump, we [...] or Say an [...] and, on core dump, we [...] > The idea would be to set a "trigger" named OnAnyCoreDump for the session. Any > coredump detected using /proc/sys/kernel/core_pattern will send a notification > to the session daemon and trigger the user defined action. [...] the user-defined action. > First, a trigger command is needed and goes as followed. [...] and goes as follows: > For the example showed in the Motivation section, the <WHAT> is OnAnyCoreDump > and the <ACTION> is to take a snapshot of the session where this trigger is > set. For the example shown in [...] > In order to use the notify socket, the message protocol is detailed as > followed. [...] detailed as follows: > Now to fire it up by being let say in a small program set in > /proc/.../core_pattern. Now to fire it up by being let's say in a small [...] Daniel U. Thibault R & D pour la défense Canada - Valcartier (RDDC Valcartier) / Defence R&D Canada - Valcartier (DRDC Valcartier) Cyber sécurité pour les missions essentielles (CME) / Mission Critical Cyber Security (MCCS) Protection des systèmes et contremesures (PSC) / Systems Protection & Countermeasures (SPC) 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
