Assume we have this system with a choice of kernels at boot time (for instance, between 2.6.18, 2.6.18-128.el5, and 2.6.18-grsec). Do we need to do multiple LTTng builds? For some packages only, maybe (e.g., lttng-modules)? If so, can they cohabit without trouble, or will we need to run some sort of LTTng-fixing script every time we switch kernels? Daniel U. Thibault, M.Sc.² Informaticien scientifique, CME-PSC, Centre de recherches de Valcartier Recherche et développement pour la défense Canada / Gouvernement du Canada daniel.thibault at drdc-rddc.gc.ca / Tél: 418-844-4000x4245 Téléc: 418-844-4538 daniel.thibault at forces.gc.ca / Tél: 418-844-4000x4245 Téléc: 418-844-4538 Computer Scientist, MCCS-SPC, Valcartier Research Centre Defence Research and Development Canada / Government of Canada daniel.thibault at drdc-rddc.gc.ca / Tel: 418-844-4000x4245 Fax: 418-844-4538 daniel.thibault at forces.gc.ca / Tel: 418-844-4000x4245 Fax: 418-844-4538 DRDC is an agency of the Department of National Defence / RDDC est une agence du ministère de la Défense nationale