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<p>I am really struggling trying to get user space tracing working predictably and consistently and would appreciate some help.</p>
<p><br>
</p>
<p>I created a trace event called </p>
<p>kvm_server:new_connection_tracepoint (see attached), I then use lttng-gen-tp to generate the .c and .h files which I link to the program and call with
</p>
<p>tracepoint(kvm_server, new_connection_tracepoint, .................)</p>
<p>This appears predictably in my traces</p>
<p>However if I call my second tracepoint (see attached)<br>
</p>
<p>tracepoint(resolution_management, resolution_management_tracepoint,.......)</p>
<p>It never appears in any of the traces</p>
<p>I can see no significant difference between the two definitions.</p>
<p><br>
</p>
<p>I then created a third trace definition called simple_example (see attached)<br>
</p>
<p>tracepoint(simple_example, simple_example_tracepoint, .....)</p>
<p>This again appears in the trace</p>
<p><br>
</p>
<p>I start the tracing using </p>
<p>lttng enable-event -u -a # enable user-space tracing</p>
<p>I then use babel trace to dump the trace, </p>
<p><br>
</p>
<p>'kvm_server' and 'simple_example' appear in the trace, resolution_management does not.</p>
<p><br>
</p>
<p><br>
</p>
<p>Any idea why the resolution_management tracepoint does not appear in any traces or is there some way of debugging the tracecall macro itself?<br>
</p>
<p><br>
</p>
<p>regards</p>
<p>John<br>
</p>
<br>
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