From mboxrd@z Thu Jan 1 00:00:00 1970 From: mburton@ciena.com (Burton, Michael) Date: Fri, 8 Jun 2012 16:29:38 -0400 Subject: [lttng-dev] UST Hanging at Tracepoint In-Reply-To: <3F56B905CF2083408E8482044F20428AEF604D22@ONWVEXCHMB01.ciena.com> References: <3F56B905CF2083408E8482044F20428AEF604D22@ONWVEXCHMB01.ciena.com> Message-ID: <3F56B905CF2083408E8482044F20428AEF6A2DBB@ONWVEXCHMB01.ciena.com> For further insight, I've attached the strace from the hanging program. I also upgraded LTTng-UST to 2.0.3 and userspace-rcu to 0.7.3. Michael From: Burton, Michael [mailto:mburton@ciena.com] Sent: Thursday, June 07, 2012 2:16 PM To: lttng-dev at lists.lttng.org Subject: [lttng-dev] UST Hanging at Tracepoint I am working on getting LTTng 2.0 working in our 2.6.35 kernel. I have kernel tracing working but I'm having problems with UST. I have a program with a dynamic UST tracepoint. When I run the program with all UST events enabled (lttng enable-event -a -u) the program hangs on the tracepoint. The last line from the UST debug is: libust[6184/6185]: Info: sessiond not accepting connections to local apps socket (in ust_listener_thread() at lttng-ust-comm.c:699) Any insight into why this is happening? I've attached the UST and lttng-sessiond debug generated by the program. I am running the following: lttng-modules-2.6.32 (found through this mailing list) lttng-tools-2.0.1 lttng-ust-2.0.2 userspace-rcu-0.7.0 Thanks, Michael -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: strace_debug.txt URL: