I've now successfully tested the fix from #827444 on both jessie and stretch.
Specifically, I created /etc/systemd/system/nslcd.service.d/forking.conf with the following contents: [Service] Type=forking PIDFile=/var/run/nslcd/nslcd.pid RemainAfterExit=no Restart=on-failure To test one can simply kill the running /usr/sbin/nslcd with one's choice of signal (it doesn't have to be SEGV).

