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Bug #944

closed

LTTng Kernel tracing does not work with Ubuntu PPAs in trusty

Added by Matthew Khouzam about 9 years ago. Updated almost 5 years ago.

Status:
Resolved
Priority:
Normal
Target version:
-
Start date:
10/05/2015
Due date:
% Done:

0%

Estimated time:

Description

Trusty's stable ppa has kernel modules v2.7 and everything else that's 2.6. It does not allow kernel tracing.
The nightly does not work either.

Actions #1

Updated by Jonathan Rajotte Julien about 9 years ago

  • Assignee set to Anonymous
Actions #2

Updated by Julien Desfossez about 9 years ago

I confirm that the stable PPA does not work because of version mismatch between lttng-modules-dkms and the other packages.

The packages in the daily PPA are in sync, but there seems to be a linking problem:
[ 125.103539] lttng_tracer: Unknown symbol lttng_clock_unref (err 0)
[ 125.103564] lttng_tracer: Unknown symbol lttng_clock_ref (err 0)
[ 125.103601] lttng_tracer: Unknown symbol lttng_trace_clock (err 0)

Actions #3

Updated by Anonymous about 9 years ago

  • Assignee changed from Anonymous to Michael Jeanson

Michael, who is also taking care of the Debian packaging, will look into it.

Actions #4

Updated by Simon Marchi about 9 years ago

I applied loads of duct tape to the packaging of lttng-ust, lttng-modules and lttng-tools so that it builds. I copied a lot of stuff from the latest Debian package. I tested basic functionality of userspace and kernel tracing on Trusty, but not Java/Python tracing, so I don't know if that is properly configured.

I did not really pay attention to have a safe upgrade path. I know that Marc-André bumped into some conflicts between old and new packages while upgrading, but it could all be fixed by removing all lttng-related packages first.

Actions #5

Updated by Michael Jeanson almost 5 years ago

  • Status changed from New to Resolved
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