SystemTap 3.0 doesn't work on Ubuntu 14.04.4 LTS

[Frank Ch. Eigler]

Aleksander Alekseev wrote:

> [...]
> ubuntu-14.04.4-server-amd64.iso
> This distribution uses Linux kernel 4.2.0.
> [...]
> linux-image-4.2.0-27-generic-dbgsym_4.2.0-27.32_amd64.ddeb
> Unfortunately SystemTap didn't work:
> http://pastebin.com/raw/GDry4JWJ

Strange.  I have what seems like an identical ubuntu VM ...:

% dpkg -l | egrep '(systemtap.*2.3)|(linux.*4.2)'
ii  linux-headers-4.2.0-27               4.2.0-27.32~14.04.1                     all          Header files related to Linux kernel version 4.2.0
ii  linux-headers-4.2.0-27-generic       4.2.0-27.32~14.04.1                     amd64        Linux kernel headers for version 4.2.0 on 64 bit x86 SMP
ii  linux-image-4.2.0-27-generic         4.2.0-27.32~14.04.1                     amd64        Linux kernel image for version 4.2.0 on 64 bit x86 SMP
ii  linux-image-4.2.0-27-generic-dbgsym  4.2.0-27.32~14.04.1                     amd64        Linux kernel debug image for version 4.2.0 on 64 bit x86 SMP
ii  systemtap                            2.3-1ubuntu1.4                          amd64        instrumentation system for Linux
ii  systemtap-common                     2.3-1ubuntu1.4                          all          instrumentation system for Linux (common component)
ii  systemtap-runtime                    2.3-1ubuntu1.4                          amd64        instrumentation system for Linux (runtime component)

and stap things just work (tm):
% sudo stap exec.stp
systemd-udevd(3480) exit (0)
^Cstapio(3479) exit (0)

% stap -p2 exec.stp | grep kernel.function

kernel.function("SyS_execve@/build/linux-lts-wily-Vv6Eyd/linux-lts-wily-4.2.0/fs/exec.c:1708").call /* pc=_stext+0x1f2cd8 */ /* <- syscall.execve = kernel.function("sys_execve").call <- syscall.execve */
kernel.function("do_exit@/build/linux-lts-wily-Vv6Eyd/linux-lts-wily-4.2.0/kernel/exit.c:653").call /* pc=_stext+0x79818 */ /* <- syscall.exit = kernel.function("do_exit").call <- syscall.exit */


- FChE