I run xchat. I strace it, and everything seems fine... I then exit the strace process (C-c), and the process it's attached to hangs. It no longer refreshes or reacts, and top shows it as being traced. Stracing the pid again makes the program continue. Also reproduced with emacs. kill -CONT on the attached process seems to help (strangely enough, kill -CONT `pgrep emacs` works, killall -CONT emacs doesn't)
This is a duplicate of bug #63370.
Yep. I fixed psmisc/killall in a separate bug *** This bug has been marked as a duplicate of 63370 ***