root@procpstest:~# strace -f -o /tmp/strace.out su dannf -c '/bin/kill -12'
root@procpstest:~# grep kill /tmp/strace.out
2623 execve("/bin/su", ["su", "dannf", "-c", "/bin/kill -12"], [/* 11 vars
*/]) = 0
2628 execve("/bin/bash", ["bash", "-c", "/bin/kill -12"], [/* 17 vars */]) = 0
2628 execve("/bin/kill", ["/bin/kill", "-12"], [/* 17 vars */]) = 0
2628 kill(-12, SIGUSR2) = -1 ESRCH (No such process)
root@procpstest:~#
** Tags removed: verification-needed
** Tags added: verification-done
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https://bugs.launchpad.net/bugs/1637026
Title:
kill incorrectly parses negative PIDs
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