[Unit]
Description=Apply kernel variable kernel.sem at least 512
DefaultDependencies=no
Conflicts=shutdown.target
After=systemd-sysctl.service
Before=sysinit.target
ConditionPathIsReadWrite=/proc/sys/
IgnoreOnIsolate=yes

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/syno/lib/systemd/scripts/syno-sysctl-kernel-sem.sh 512

[X-Synology]