Here's the output from systemtap 3.1-3, under the Ubuntu 4.15.0-20.21-generic kernel, showing failure to build the module.
** Attachment added: "stap-bad.txt" https://bugs.launchpad.net/ubuntu/+source/systemtap/+bug/1766754/+attachment/5127252/+files/stap-bad.txt ** Description changed: [Impact] systemtap cannot be used in Ubuntu 18.04 due to kernel ABI incompatibilities with the 4.15 based kernel. The upstream kernel changes are: - https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7eeb6b893bd28c68b6d664de1d3120e49b855cdb - https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d3a024abbc43827785 [Test Case] Load an example systemtap script to verify that it can be built and used with the Ubuntu 18.04 kernel. + + $ sudo stap -v -e 'probe kernel.function("proc_dostring") + {printf("proc_dostring() called\n"); exit()}' + + In another terminal, execute 'cat /proc/sys/kernel/hostname' and the + stap command should print "proc_dostring() called" and exit. See the + stap-bad.txt and stap-good.txt attachments for example output. [Regression Potential] Low regression potential since the package does not currently work as- is. [Original Bug Report] Per https://sourceware.org/bugzilla/show_bug.cgi?id=22158 , Systemtap 3.1 is broken on kernel versions > 4.14. It looks like they're aware of this in the debian package : https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=892995 . With Bionic Beaver about to ship with kernel 4.15 and systemtap 3.1-3, systemtap will be unusable on the LTS of Ubuntu. $ lsb_release -rd Description: Ubuntu Bionic Beaver (development branch) Release: 18.04 $ uname -a Linux appliance 4.15.0-19-generic #20-Ubuntu SMP Sun Apr 22 00:03:34 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux $ apt-cache policy systemtap systemtap: Installed: 3.1-3 Candidate: 3.1-3 Version table: *** 3.1-3 500 500 http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages 100 /var/lib/dpkg/status -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1766754 Title: Linux kernel > 4.14 requires systemtap 3.2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemtap/+bug/1766754/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
