Could you also supply me with the information how to reproduce this exactly ? I tried with "valgrind --tool=memcheck --leak-check=yes", (just running the pd test audio and midi patch) and the below message didn't show up.
i was using a simple gem patch without any midi on one machine (well, on 24 identical ones) and on another machine a patch containing a netreceive and py. so basically, i wasn't using _any_ midi ... one installation was based on a knoppix hd install, the other one on ubuntu.
cheers ... tim