The Ubuntu packages do not yet provide all the debug info that RH kernel-debuginfo does, namely dwarf2 data from the .debug_info sections. The RH package is >150Mb though.
https://lists.ubuntu.com/archives/kernel-team/2006-August/001003.html -- wishlist - ship vmlinux in a -dbg package for oprofile use https://launchpad.net/bugs/56402 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
