I don't know. I tried with kernel 3.2.30 and didn't get any problems. Da
On Mon, Jun 3, 2013 at 10:05 PM, Jérémie Galarneau <[email protected]> wrote: > Hi Zeng, > > Just tried the 2.0 release on a Ubuntu-12.04 VM and I could not > reproduce your problem. Any chance you have installed different > versions of LTTng (either built from source or from your package > manager)? > > root@ubuntu1204-32:/home/jgalar# sudo lttng create > Spawning a session daemon > Warning: No tracing group detected > Session auto-20130603-220050 created. > Traces will be written in /root/lttng-traces/auto-20130603-220050 > root@ubuntu1204-32:/home/jgalar# sudo lttng enable-event -k -a > All kernel events are enabled in channel channel0 > root@ubuntu1204-32:/home/jgalar# sudo lttng start > Tracing started for session auto-20130603-220050 > root@ubuntu1204-32:/home/jgalar# sudo lttng stop > Tracing stopped for session auto-20130603-220050 > > That produces a readable trace here. > > Regards, > Jérémie > > On Thu, May 30, 2013 at 3:05 PM, Zheng Da <[email protected]> wrote: >> Hello, >> >> I built lttng-modules-2.0.6, lttng-tools-2.0.5 and lttng-ust-2.0.6. >> >> Best, >> Da >> >> On Thu, May 30, 2013 at 1:14 PM, Jérémie Galarneau >> <[email protected]> wrote: >>> On Thu, May 30, 2013 at 12:32 PM, Zheng Da <[email protected]> wrote: >>>> Hello, >>>> >>>> I just started to use lttng. I use Ubuntu 12.04 and the kernel version >>>> 3.8.12. I use a customized kernel, so the lttng package in ubuntu >>>> can't be installed correctly. I built lttng 2.0 myself. >>> >>> Did you build only the lttng-modules or the complete toolchain >>> (lttng-tools, lttng-ust, lttng-modules)? Which versions of the >>> different packages are you using? >>> >>> Thanks, >>> Jérémie >>> >>>> >>>> Then I followed the steps in https://lttng.org/quickstart. When I run >>>> lttng start, I got the errors: >>>> root@ubuntu:~# lttng start >>>> PERROR: sendmsg: Bad file descriptor [in lttcomm_send_unix_sock() at >>>> sessiond-comm.c:311] >>>> PERROR: send consumer channel: Bad file descriptor [in >>>> send_kconsumer_session_streams() at main.c:636] >>>> PERROR: ioctl start session: No buffer space available [in >>>> kernel_start_session() at kernel.c:397] >>>> Error: Starting kernel trace failed >>>> >>>> Someone said in the mailing list that this problem may have something >>>> to do with memory limit. But it shouldn't be my case as my machine has >>>> 512GB memory. >>>> >>>> Can anyone help me troubleshoot the problem? >>>> >>>> Thanks, >>>> Da >>>> >>>> _______________________________________________ >>>> lttng-dev mailing list >>>> [email protected] >>>> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev >>> >>> >>> >>> -- >>> Jérémie Galarneau >>> EfficiOS Inc. >>> http://www.efficios.com > > > > -- > Jérémie Galarneau > EfficiOS Inc. > http://www.efficios.com _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
