In 91a9c83 a regression was introduced that affects the way Finit stops
a supervised process and its process group.
Instead of sending SIGTERM to the process, delegating the responsibility
to that process to inform any children it may have, Finit as of 91a9c83
sends SIGTERM to the entire process group. For SIGKILL this is fine,
SIGKILL only runs as cleanup and as a last ditch effort if the process
doesn't respond to SIGTERM.
This regression, introduced in v3.2, directly affects services like
avahi-autoipd that have forked off children that it needs to tell to
exit cleanly before it returns. With the patch in question these
children are never allowed to complete, which in turn causes lingering
169.254 link-local addresses on interfaces.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Joachim Wiberg
712f68f9da