Yep, and aiui kthreadd on Linux always has a PID of 2. If you are ever trying to filter out kernel processes from ps output (and usermode helpers, apparently),

Yep, and aiui kthreadd on Linux always has a PID of 2. If you are ever trying to filter out kernel processes from ps output (and usermode helpers, apparently), you can check if the pid is 2 or ppid is 2.