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Hi,</div>
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Just to make sure, is your program still running by the time you issue 'lttng list --userspace'?</div>
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<div style="font-size:12pt;margin:0px" class="ContentPasted2">Also, which versions of LTTng are you running and on what kind of system?</div>
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Are the session daemon and application running under the same user?</div>
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Please run your application with the LTTNG_UST_DEBUG environment variable set to '1' and provide the output. This will help understand where things go wrong.<br>
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Thanks,</div>
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Jérémie</div>
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--</div>
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Jérémie Galarneau</div>
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<div>EfficiOS Inc.</div>
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<a href="https://www.efficios.com">https://www.efficios.com</a><br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> lttng-dev <lttng-dev-bounces@lists.lttng.org> on behalf of bule via lttng-dev <lttng-dev@lists.lttng.org><br>
<b>Sent:</b> November 4, 2022 06:52<br>
<b>To:</b> lttng-dev@lists.lttng.org <lttng-dev@lists.lttng.org><br>
<b>Subject:</b> [lttng-dev] lttng list --userspace is null</font>
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<div dir="ltr">hi ,
<div> I used lttng-ust in my project, it's a dpdk program. I built and run it , and run lttng list --userspace in another terminal ,but the result is null.</div>
<div><img alt="image.png" width="542" height="65" data-outlook-trace="F:1|T:1" src="cid:ii_la2dfng90"><br>
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<div> And gdb disassemble result has lttng_ust_tracepoint.</div>
<div><img alt="image.png" width="542" height="308" data-outlook-trace="F:1|T:1" src="cid:ii_la2dim6w1"><br>
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<div> Then I used lttng-ust in a demo, it works ok. </div>
<div><img alt="image.png" width="542" height="428" data-outlook-trace="F:1|T:1" src="cid:ii_la2dkme22"><br>
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<div>so , how to fix it ?</div>
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<div>Best regards</div>
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