Hi Roland I use utrace for uprobes work. I have not seen recent utrace patches against 2.6.25-rc kernels. Patches present in http://people.redhat.com/roland/utrace/ are 2.6.24 based. I verified FC9-Alpha kernel, utrace is not enabled on it. Eventhough FC9-Alpha kernel source contains utrace patches, it didn't get applied when I build the kernel using "rpmbuild" command.
So could you please point us to latest utrace patches. Thanks Srinivasa DS