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From: Francis Rivest <francis.rivest13@gmail.com>
To: lttng-dev@lists.lttng.org
Subject: No kernel tracer available
Date: Thu, 14 May 2015 09:52:06 -0400	[thread overview]
Message-ID: <CAG4vvd4Fa2dWpWoO_sJqm+6=K4g9W5Cmvz3LuzkzUAQsGTSPPw__42942.3445290469$1431615467$gmane$org@mail.gmail.com> (raw)


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Hello, I'm a student at Polytechnique Montreal and we are trying to use
lttng on ubuntu(Ubuntu 14.04.2 LTS) but always encounter the same problem :

"Error: Unable to list kernel events: Kernel tracer not available"

This happens even though we are root using the command line : sudo su

We reinstalled the packages multiples time for lttng.org and from this
source : https://launchpad.net/~lttng/+archive/ubuntu/ppa/

We are able to create a session but we can't enable event (kernel tracer
not available) or start tracing (error : no channel found).

If someone has advice on how to deal we this, it would be appreciated a lot.

Thank you,

-Francis R.

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             reply	other threads:[~2015-05-14 13:52 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-14 13:52 Francis Rivest [this message]
     [not found] <CAG4vvd4Fa2dWpWoO_sJqm+6=K4g9W5Cmvz3LuzkzUAQsGTSPPw@mail.gmail.com>
2015-05-14 15:30 ` No kernel tracer available Simon Marchi

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