Thank you for your bug report, it has been reported to Debian as well and seems a side effect of kernel changes, https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=912748 has some details
** Bug watch added: Debian Bug tracker #912748 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=912748 ** Changed in: psmisc (Ubuntu) Importance: Undecided => Low ** Changed in: psmisc (Ubuntu) Status: New => Triaged ** Also affects: psmisc (Debian) via https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=912748 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1827467 Title: killall does not find processes with names longer than 15 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/psmisc/+bug/1827467/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs