I see the same on 14.04, even without "-" on the su. The test also lacked the -c for the command, and "-" would need to be at the end or specified as "-l". Also we might execute something that doesn't add output, to easen debugging (/bin/true)
Anyway - that just refines the simple test, the issue is there as reported. Simplified test: su testuser -c "/bin/true" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1534090 Title: 'call to get_tasks_recursive failed' errors from su To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1534090/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
