[ltt-dev] LTTng:kernel compatibility

[Steve Langstaff]

> From: Mathieu Desnoyers [mailto:compudj at krystal.dyndns.org]
> * Steve Langstaff (steve.langstaff at pebblebay.com) wrote:
> > I have a question about the LTTng compatibility matrix at:
> > http://ltt.polymtl.ca/svn/trunk/lttv/doc/developer/lttng-lttv-
> compatibility.
> > html
> >
> > ...
> > LTTng 0.123 supports kernel 2.6.29.1.
> > LTTng 0.124 fixes a mutex circular dependency in ltt-trace-control.
> > LTTng 0.125 supports kernel 2.6.30-rc1.
> > LTTng 0.126 supports kernel 2.6.30-rc2.
> > LTTng 0.129 finally gets merge with event tracer right.
> > ...
> >
> > I am running a 2.6.29.2 kernel, so how should I read the
> compatibility
> > matrix?
>
> 2.6.29.1 and 2.6.29.2 are _very_ close (only mainline bugfixes).
> Therefore it would be better for you to start with a LTTng compatible
> with 2.6.29.1. Here the best choice would be 0.124.

So, in general, I should:
1) Search the matrix for the version of LTTng that has the closest match to
'my' kernel.
2) From there, find the next "supports kernel" line.
3) Take the previous version of LTTng.

Thanks.