Looks like this has been isolated to sbuild itself. natty's sbuild causes raise(SIGTSTP) to got actually stop the process, even with maverick's kernel.
** Package changed: linux (Ubuntu) => sbuild (Ubuntu) ** Changed in: sbuild (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/693510 Title: child paused by SIGTSTP fails to cause wait() to report WSTOPPED -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs