I have been using PTU 3.2 with success on Nehalem EPs and switched to PTU 4.0 u3 so that I could profile Nehalem EXs. So far I've been unsuccessful.
The kernel is RHEL5 (Linux 2.6.18-128.el5) and the sep3 and pax drivers build and install. The "vtsarun -cl" command runs and lists the processor as I74. But when using the eclipse interface to run experiments, vtdpview cores and the last lines of the console are:
17:09:07.538 Processing module 33 / 45 (dgraph458357)
17:09:14.712 Processing module 33 / 45 (dgraph458357)
This last module turns out to be the module of interest.
Any thoughts on what is wrong?
Going back to PTU 3.2 is not an option as we are using EXs now.