[ltt-dev] LTTng Patch set against 2.6.33.7 and Prempt-RT?

[Jesse Keller]

It looks like development of the PREEMPT_RT patch set (https://rt.wiki.kernel.org/index.php/CONFIG_PREEMPT_RT_Patch) has calmed down in recent months. Last patch is against 2.6.33.7 and was released in December 2010.   A kernel with those patches seems to work fine for my application, but I'd like to be able to use LTTng as well.   Unfortunately, patch-2.6.33.4-lttng-0.216.tar.gz doesn't seem to apply cleanly to an -rt patched kernel.

What would it take to get an LTTng patchset that works on 2.6.33.7-rt30?  While I can see that LTTng doesn't normally track the -rt tree, I have seen at least one other person asking about this and it would be helpful to me to do a one-off sync.

If I were to tackle this myself, how would I identify the changes made between r217 (the last 2.6.33 LTTng release) and r245 that would be critical to include in such a patch?

-Jesse Keller