Public bug reported: Due to ubuntu kernel (Ubuntu 4.13.0-36.40-generic 4.13.13) being compiled with ""-fno-var-tracking-assignments", the debug symbols produced are of lesser quality, i.e. $context variables are not available.
E.g.: (systemtap needs to be installed on the system) $> stap -L 'kernel.function("reparent_leader")' kernel.function("reparent_leader@/build/linux-r9581B/linux-4.13.0/kernel/exit.c:632") on Fedora (Linux 4.15.6-300.fc27.x86_64) the same command gives: kernel.function("reparent_leader@kernel/exit.c:632") $dead:struct list_head* $p:struct task_struct* $father:struct task_struct* more info: SystemTap Release notes (known issues) https://sourceware.org/ml/systemtap/2017-q4/msg00096.html ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754078 Title: reenable full variable debugging information within dbgsyms with gcc vta cflags To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1754078/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs