sshd 'zombie' processes

[M. Warner Losh]

In message: <xzp3ch9yxm9.fsf at dwp.des.no>
            des at des.no (Dag-Erling Smørgrav) writes:
: "M. Warner Losh" <imp at bsdimp.com> writes:
: > each scp or ssh I do to a 4.8-stable machine I have gives me two
: > 'zombie' processes:
: >
: > root     282  0.0  0.4  5236 2184  ??  I     7:41AM   0:00.05 sshd: imp [priv] (sshd)
: > imp      284  0.0  0.4  5252 2260  ??  I     7:41AM   0:00.01 sshd: imp at notty (sshd)
: 
: This is perfectly normal (unless they stick around after you log off).

They stick around until I kill them off.  Eg, each and every scp that
I do causes another one to appear and not disappear.

Warner