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<div class="moz-cite-prefix">Sorry, I forgot to CC the list.<br>
<br>
On 07/29/2012 10:26 PM, Rui Han wrote:<br>
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cite="mid:CABy43G956NYAU4MG9p32+17jwJt8-6TZsdP9xysNs63CGw0hbg@mail.gmail.com"
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<div>Hi,</div>
<div><br>
</div>
<div>I used lttng last week and didn't touch it ever since. I am
trying to use it again. I use lttng list -k, it give me error
messages:</div>
<div><br>
</div>
<div>FATAL: Module lttng_tracer not found.</div>
<div>Error: Unable to load module lttng-tracer</div>
<div>Error: Unable to remove module lttng-tracer</div>
<div>Warning: No kernel tracer available</div>
<div>Error: Unable to list kernel events</div>
<div><br>
</div>
<div>I run kernel tracing as root. At first, I thought I have to
start the daemon by lttng-sessiond command. It gave me the
error: "Error: Already running daemon." At this time, I can
create session, it gave "Session session created. Traces will be
written in /root/lttng-traces/session-20120729-160806". However,
it failed to generate a single term of tracing. While I tried
lsmod, there are no lttng related module in the list. Which I
remember there were several. The same thing happened to my two
ubuntu systems. I restarted the system, it still doesn't
work. Does any one know how to make lttng work again in this
situation?</div>
<div><br>
</div>
<div>Thank you very much.</div>
<div><br>
</div>
<div>Best regards,</div>
<div>Rui</div>
<br>
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</pre>
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<br>
<br>
<pre class="moz-signature" cols="72">--
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