<div dir="ltr">Good to hear, thanks!<div><br></div><div>Jérémie</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jul 8, 2015 at 5:27 PM, Dylan <span dir="ltr"><<a href="mailto:dilong.zheng@mitel.com" target="_blank">dilong.zheng@mitel.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><p dir="ltr">Hello Jeremie,</p>
<p dir="ltr">So I uninstalled lttng-ust and reinstalled it using my package manager and the error I was getting seemed to be gone (I am able to enable the user events without a create channel error now).</p>
<p dir="ltr">Thanks,</p>
<p dir="ltr">Dilong</p>
<div class="gmail_quote">On Jul 8, 2015, at 5:10 PM, "Jérémie Galarneau" <<a href="mailto:jeremie.galarneau@efficios.com" target="_blank">jeremie.galarneau@efficios.com</a>> wrote:<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div>
Can you test whether or not you can reproduce this using the latest 2.5 release (lttng-tools 2.5.4 + lttng-ust 2.5.5)?
<br>
</div>
<div>
Jérémie
</div>
</div>
<div class="gmail_extra">
<br>
<div class="gmail_quote">
On Tue, Jul 7, 2015 at 2:23 PM, Dilong Zheng
<span dir="ltr"><<a href="mailto:Dilong.Zheng@mitel.com" target="_blank">Dilong.Zheng@mitel.com</a>></span> wrote:
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div style="font-size:12pt;color:#000000;background-color:#ffffff;font-family:Calibri,Arial,Helvetica,sans-serif">
<p>Hi,<br> </p>
<br> I'm using
<b>LTTng v2.5.1 - Fumisterie</b>.
<br>
<br> I launched the session daemon manually using:
<span style="font-family:"Courier New",monospace"> lttng-sessiond -vvv</span> and attempted to enable my UST events in another terminal (unsuccessfully). I have attached the contents of the sessiond log (please see
<em>sessiondlog.txt</em>).
<br>
<br> Thanks,
<br>
<br> Dilong
<br>
<br>
<div style="color:rgb(46,52,54)">
<hr style="display:inline-block;width:98%">
<div dir="ltr">
<font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><span><b>From:</b> <a href="mailto:jeremie.galarneau@gmail.com" target="_blank">jeremie.galarneau@gmail.com</a> <<a href="mailto:jeremie.galarneau@gmail.com" target="_blank">jeremie.galarneau@gmail.com</a>> on behalf of Jérémie Galarneau <<a href="mailto:jeremie.galarneau@efficios.com" target="_blank">jeremie.galarneau@efficios.com</a>><br> </span><b>Sent:</b> Tuesday, July 7, 2015 1:13 PM
</font><div><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000">
</font><div><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000">
<br>
<b>To:</b> Dilong Zheng
<br>
<b>Cc:</b>
<a href="mailto:lttng-dev@lists.lttng.org" target="_blank">lttng-dev@lists.lttng.org</a>
<br>
<b>Subject:</b> Re: [lttng-dev] UST Create Channel Failed, Why?
</font></div></div>
<div>
</div>
</div>
<div>
<div>
<div>
<div dir="ltr">
Which release of 2.5 are you using? You can find out using:
<div>
$ lttng version
</div>
<div>
<br>
</div>
<div>
Can you launch the session daemon manually in verbose-mode and provide the logs?
</div>
<div>
$ lttng-sessiond -vvv
</div>
<div>
<br>
</div>
<div>
and enable your events in another terminal.
</div>
<div>
<br>
</div>
<div>
Thanks,
</div>
<div>
Jérémie
</div>
<div>
<br>
</div>
</div>
<div class="gmail_extra">
<br>
<div class="gmail_quote">
On Tue, Jul 7, 2015 at 11:28 AM, Dilong Zheng
<span dir="ltr"> <<a href="mailto:Dilong.Zheng@mitel.com" target="_blank">Dilong.Zheng@mitel.com</a>></span> wrote:
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div style="font-size:12pt;color:#000000;background-color:#ffffff;font-family:Calibri,Arial,Helvetica,sans-serif">
<p>Hi Jeremie,</p>
<p><br> </p>
<p>Had some grammatical mistakes in my last email.... this should be clearer.<br> </p>
<p><br> </p>
<p>I am using LTTng v2.5. I am not explicitly creating any channels. I am only creating a session via: <span style="font-family:"Courier New",monospace">lttng create [session-name]</span> . I used to always just create a session and then enable whichever available user tracepoint that I need (without explicitly creating any channels).</p>
<p><br> </p>
<p>Thanks,</p>
<p><br> </p>
<p>Dilong<br style="font-family:"Courier New",monospace"> </p>
<br>
<br>
<div style="color:rgb(46,52,54)">
<hr style="display:inline-block;width:98%">
<div dir="ltr">
<font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> Dilong Zheng<br> <b>Sent:</b> Tuesday, July 7, 2015 11:26 AM<br> <b>To:</b> Jérémie Galarneau
</font><div><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000">
</font><div><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000">
<br>
<b>Cc:</b>
<a href="mailto:lttng-dev@lists.lttng.org" target="_blank">lttng-dev@lists.lttng.org</a>
<br>
<b>Subject:</b> Re: [lttng-dev] UST Create Channel Failed, Why?
</font></div></div>
<div>
</div>
</div>
<div>
<div>
<div>
<div style="font-size:12pt;color:#000000;background-color:#ffffff;font-family:Calibri,Arial,Helvetica,sans-serif">
<p>Hi Jeremie,</p>
<p><br> </p>
<p>I am using LTTng v2.5. I am not explicitly creating channels. I am only creating a session: <span style="font-family:"Courier New",monospace">lttng create [session-name]</span> . It used to always just create a session and then enable whichever available user tracepoint that I need (which out explicitly creating any channels).</p>
<p><br> </p>
<p>Thanks,</p>
<p><br> </p>
<p>Dilong<br style="font-family:"Courier New",monospace"> </p>
<br>
<div style="color:rgb(46,52,54)">
<hr style="display:inline-block;width:98%">
<div dir="ltr">
<font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> <a href="mailto:jeremie.galarneau@gmail.com" target="_blank">jeremie.galarneau@gmail.com</a> <<a href="mailto:jeremie.galarneau@gmail.com" target="_blank">jeremie.galarneau@gmail.com</a>> on behalf of Jérémie Galarneau <<a href="mailto:jeremie.galarneau@efficios.com" target="_blank">jeremie.galarneau@efficios.com</a>><br> <b>Sent:</b> Tuesday, July 7, 2015 11:20 AM<br> <b>To:</b> Dilong Zheng<br> <b>Cc:</b> <a href="mailto:lttng-dev@lists.lttng.org" target="_blank">lttng-dev@lists.lttng.org</a><br> <b>Subject:</b> Re: [lttng-dev] UST Create Channel Failed, Why?</font>
<div>
</div>
</div>
<div>
<div dir="ltr">
Hi Dilong,
<div>
<br>
</div>
<div>
How do you create this channel and using which version of LTTng?
</div>
<div>
<br>
</div>
<div>
Jérémie
</div>
</div>
<div class="gmail_extra">
<br>
<div class="gmail_quote">
On Mon, Jul 6, 2015 at 2:11 PM, Dilong Zheng
<span dir="ltr"> <<a title="Ctrl+Click or tap to follow the link" href="mailto:Dilong.Zheng@mitel.com" target="_blank">Dilong.Zheng@mitel.com</a>></span> wrote:
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div style="font-size:12pt;color:#000000;background-color:#ffffff;font-family:Calibri,Arial,Helvetica,sans-serif">
<p>Hi all,</p>
<p><br> </p>
<p>While trying to enable UST events, I get the following error message:</p>
<p><br> </p>
<p><span style="font-family:"Courier New",monospace">Error: Event mitel:sem_wait_entry: UST create channel failed (channel channel0, session mcdUST3)</span></p>
<p><br> </p>
<p>When I type: <span style="font-family:"Courier New",monospace"></span><span style="font-family:"Courier New",monospace">lttng list -u</span> <span style="font-family:Calibri,Arial,Helvetica,sans-serif">I am able to see a list of all my UST tracepoints.</span><br> </p>
<p>Could someone please provide some insight as to why this error is appearing and steps I could take to fix this error. Thanks.</p>
<p><br> </p>
<p><br> <br> </p>
</div>
</div>
<br> _______________________________________________
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<br>
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<br>
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<br>
<br>
</blockquote>
</div>
<br>
<br clear="all">
<div>
<br>
</div> --
<br>
<div>
Jérémie Galarneau
<br> EfficiOS Inc.
<br>
<a href="http://www.efficios.com" target="_blank">http://www.efficios.com</a>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
<br>
<br clear="all"><span class="HOEnZb"><font color="#888888">
<div>
<br>
</div> --
<br>
<div>
Jérémie Galarneau
<br> EfficiOS Inc.
<br>
<a href="http://www.efficios.com" target="_blank">http://www.efficios.com</a>
</div>
</font></span></div><span class="HOEnZb"><font color="#888888">
</font></span></div><span class="HOEnZb"><font color="#888888">
</font></span></div><span class="HOEnZb"><font color="#888888">
</font></span></div><span class="HOEnZb"><font color="#888888">
</font></span></div><span class="HOEnZb"><font color="#888888">
</font></span></div><span class="HOEnZb"><font color="#888888">
</font></span></div><span class="HOEnZb"><font color="#888888">
</font></span></blockquote><span class="HOEnZb"><font color="#888888">
</font></span></div><span class="HOEnZb"><font color="#888888">
<br>
<br clear="all">
<div>
<br>
</div>--
<br>
<div>
Jérémie Galarneau
<br>EfficiOS Inc.
<br>
<a href="http://www.efficios.com" target="_blank">http://www.efficios.com</a>
</div>
</font></span></div></blockquote></div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature">Jérémie Galarneau<br>EfficiOS Inc.<br><a href="http://www.efficios.com" target="_blank">http://www.efficios.com</a></div>
</div>