Comment # 14 on bug 852643 from Petr Cerny

(In reply to Jon Martin from comment #13)
> (In reply to Petr Cerny from comment #12)
> 
> You are correct on Slackware, my bad.  But for RH and Ubuntu, stop only
> kills the listener.  Likewise for a restart.

Yes, that has been the usual behaviour of init scripts (Slackware has a bit
different approach to init scripts anyway). And it is also what you'll find in
SLE (11 and older).

Have you tried Fedora or RHEL7? As far as I can tell they should behave in the
same way as we (i.e. kill all sshd processes).