----- Original Message ----- > From: "Christian Babeux" <[email protected]> > To: [email protected] > Sent: Wednesday, November 6, 2013 5:19:45 PM > Subject: [lttng-dev] LTTng project development activities November 2013 > > Hi lttng-aficionados, > > My apologies for the missing October summary, the previous months have > been pretty intense! > > tl;dr : A lot of talks at LinuxCon/CloudOpen/Tracing Summit/ELCE on > LTTng; On track for mid-november 2.4 release candidate with live > streaming, Java JUL and health check in relayd/consumerd; > > September 2013 summary: > > - Minor releases: > > lttng-modules 2.3.2, 2.3.1 and 2.2.2: > > A timekeeping regression was introduced in the Linux kernel version > 3.10.13 to 3.11.2 which could lead to hard system lockup when enabling > the tracing of some subsystems, including but not limited to > workqueues. The fix for this issue was merged in kernel 3.10.14 and > 3.11.3+.
Small precision: the Linux kernel regression has been introduced in 3.10. It has been fixed in 3.10.14, 3.11.3, and 3.12 (and better). LTTng modules has a blacklist that refuses to compile against the bad kernel versions. Thanks, Mathieu > > - Patches for the live streaming support have been merged in lttng-tools. > > October 2013 summary: > > - Patches for Java Util Logging (JUL) support have been merged in > lttng-tools. > > - Patches for CTF writer have been merged in Babeltrace. This new API > allow programmatic creation of CTF traces. > > - Health check overhaul patches have been merged in lttng-tools. It is > now possible to query to health status of the consumer daemon and the > relay daemon. > > Conferences activities: > > * Google Summer of Code Mentor Summit 2013: > > - Jérémie Galarneau and Christian Babeux went to the GSoC Mentor > Summit to represent the LTTng project. > > * LinuxCon Europe 2013: > > - David Goulet gave a talk entitled "LTTng as a new monitoring tool" [1]. > > * CloudOpen Europe 2013: > > - Julien Desfossez gave a talk entitled "Efficient and Large-scale > Infrastructure Monitoring with Tracing" [2]. > > * Tracing Summit 2013: > > - Alexandre Montplaisir gave a talk entitled "Analyzing all kinds of > traces with TMF" [3] > > - Mathieu Desnoyers gave a talk entitled "LTTng: Cloud Monitoring and > Distribution Bug Reporting with Live Streaming and Snapshots" [4] > > * Embedded Linux Conference Europe 2013: > > - Christian Babeux gave a talk entitled "Bridging the gap between > hardware and software tracing" [5] > > On-going work: > > We are on track for a mid-november 2.4 release candidate including the > live streaming, Java JUL logging support and health check in the > consumerd/relayd. > > Thanks, > > Christian > > [1] - > https://events.linuxfoundation.org/sites/events/files/slides/slides_2.pdf > [2] - > https://events.linuxfoundation.org/sites/events/files/slides/presentation-cloudopen.pdf > [3] - > http://www.tracingsummit.org/w/images/2/2a/TMF_AMG_TracingSummit2013.pdf > [4] - > http://www.tracingsummit.org/w/images/b/b3/Lttng-desnoyers-tracing-summit-2013.pdf > [5] - http://www.slideshare.net/ChristianBabeux/slides-27979925 > > _______________________________________________ > lttng-dev mailing list > [email protected] > http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev > -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
