| Re: [linuxtools-dev] Lttng2 issue |
Hi Alexandre, When setting the lttng trace type only Generic CTF Trace is available, there's no kernel type option for me. I think the plug-in has the capability to figure out the type option since the other day when I played with kernel tracing data, I only see Kernel Trace option. BTW, I believe I'm using the latest lttng2. I'm attaching my tracing folder, so can you try to import it? Thanks, Jessica -----Original Message----- From: Alexandre Montplaisir [mailto:alexandre.montplaisir@xxxxxxxxxx] Sent: Tuesday, July 31, 2012 4:38 PM To: Zhang, Jessica Cc: Linux Tools developer discussions Subject: Re: [linuxtools-dev] Lttng2 issue Hi Jessica, There was a known bug in 1.0 where it would fail to validate a trace if it contained a stream with only 1 packet . This is often the case with small UST traces, since those do not have a lot of events. As a workaround, you can use the "Common Trace Format -> Kernel Trace" type. Some views will be empty, but the histogram, events table and statistics should work. Alternatively, you could update to Linux Tools 1.1. Instructions at http://wiki.eclipse.org/Linux_Tools_Project/PluginInstallHelp If either method does not fix your problem, please let us know, you might be hitting something else. Cheers, Alexandre On 12-07-31 06:33 PM, Zhang, Jessica wrote: > Hi, > > > > I've created an user space tracing with lttng2.0. The trace data are > captured under > > /lttng-traces/mysession-20120731-150610/ust/lt-hello-2718-20120731-150 > 646$ > > As: > > channel0_0 channel0_2 channel0_4 channel0_6 metadata > > channel0_1 channel0_3 channel0_5 channel0_7 > > > > So in my eclipse tracing project, I tried to import the data by selecting the tracing data folder, and under Traces, it only list 1 which is lt-hello-2718-20120731-150646. When I tried to select trace type as "Common Trace Format->Generic CTF Trace", I'm getting "Type could not be set for one or more traces". If I import each individual files, e.g. channel0_0 and assign trace type for it, I'm also getting the same error. > > > > BTW, the trace is generated using the latest stable lttng ust packages > which is 2.0.4. And my lttng is of 1.0.0.201207261918 > > > > So what am I missing here? > > > > Thanks, > > Jessica > > -- Alexandre Montplaisir DORSAL lab, École Polytechnique de Montréal
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