If after emergency service had been started there is incoming
traffic on syslog.socket emergency.service gets killed due to
implicit dependencies on basic.target => sysinit.target which in
turn conflict with emergency.target.

As a workaround explicitly stop syslog.socket when entering
emergency.service.

Reference: bnc#852232
Index: systemd-208/units/emergency.service.in
===================================================================
--- systemd-208/units/emergency.service.in
+++ systemd-208/units/emergency.service.in
@@ -9,7 +9,7 @@
 Description=Emergency Shell
 Documentation=man:sulogin(8)
 DefaultDependencies=no
-Conflicts=shutdown.target
+Conflicts=shutdown.target syslog.socket
 Before=shutdown.target
 
 [Service]