[lttng-dev] CentOS 7.3 Support

[Jonathan Rajotte-Julien]

Hi,

On Tue, Jun 06, 2017 at 01:19:11PM -0400, Michael Steppe wrote:
> Hello!
> 
> I had previously built LTTng-modules 2.8.0 from source without issue on
> CentOS 7.2 (3.10.0-327 kernel). When I tried to build on CentOS 7.3
> (3.10.0-514 kernel), however, it failed with multiple "error: struct has no
> member named 'id'" and "error: struct has no member named 'name'" errors. I
> tried building LTTng-modules 2.9.2 from source on CentOS 7.3 and was
> successful (it also built successfully on CentOS 7.2).
> 
> I was just curious at what version of LTTng-modules did the newer kernel in
> CentOS 7.3 get supported. I would like to jump as small as possible, so if
> there was a version of the modules between 2.8.0 and 2.9.2 that was
> supported that would be great.

In the specific case of kernel 3.10.0-514, lttng-modules stable 2.8 is fixed
starting from commit f61eb2851f482baee02bb508aef01f67fdb3fbaf (stable 2.8
branch) and 5f9ff4e230753160ccfc300d44004b117cf678ad (master branch):

-----------
commit f61eb2851f482baee02bb508aef01f67fdb3fbaf
Author: Michael Jeanson <mjeanson at efficios.com>
Date:   Wed Dec 7 14:17:33 2016 -0500

    Fix: asoc instrumentation for RHEL 7.3

Signed-off-by: Michael Jeanson <mjeanson at efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
-----------

Hence you can upgrade lttng-modules to any tag greater or equal to v2.8.4.

If you can't upgrade to the 2.9.x stable release the v2.8.5 tag is
your best bet.

Cheers

> 
> Thanks!
> Michael Steppe

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-- 
Jonathan Rajotte-Julien
EfficiOS