After updating to latest systemd* packages:
libsystemd0:amd64 (232-25+deb9u9, 232-25+deb9u11),
udev:amd64 (232-25+deb9u9, 232-25+deb9u11),
libudev1:amd64 (232-25+deb9u9, 232-25+deb9u11),
systemd-sysv:amd64 (232-25+deb9u9, 232-25+deb9u11),
libpam-systemd:amd64 (232-25+deb9u9, 232-25+deb9u11)...