File 0002-Let-systemd-know-when-rpc.statd-is-needed.patch of Package nfs-utils.16460

From b468dda439a02c4d1b7f85a0be6c0a227d16c2de Mon Sep 17 00:00:00 2001
From: NeilBrown <>
Date: Fri, 30 Nov 2018 16:38:45 +1100
Subject: [PATCH] Let systemd know when rpc.statd is needed.

A recent change to set IgnoreOnIsolate for rpc-statd
isn't quite sufficient (though it doesn't hurt).
While rpc-statd does remain when
  systemctl isolate multi-user
is run, its dependencies don't remain, so rpcbind might
get killed, which makes rpc.statd rather useless.

The reason this is all an issue is that systemd doesn't know that
rpc-statd is needed - mount.nfs explicitly starts it rather than
having a dependency start it.
This can be rectified by explicitly telling systemd about the
dependency using "systemctl add-wants".  This can be done in the
start-statd script, at the same time that rpc-statd is started.

As --runtime dependency is used so that it doesn't persist across
reboots.  A new dependency will be created on next boot if an NFSv3
filesystem is mounted.

With this in place, both rpc.statd and rpcbind remain.
Actually, rpcbind.service is stopped, but rpcbind.socket remains,
and when anything tries to contact rpcbind, rpcbind.service
is automatically started and it re-reads its saved state.

Signed-off-by: NeilBrown <>
 utils/statd/start-statd |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

--- a/utils/statd/start-statd
+++ b/utils/statd/start-statd
@@ -20,7 +20,12 @@ fi
 # First try systemd if it's installed.
 if [ -d /run/systemd/system ]; then
     # Quit only if the call worked.
-    systemctl start rpc-statd.service && exit
+    if systemctl start rpc-statd.service; then
+        # Ensure systemd knows not to stop rpc.statd or its dependencies
+        # on 'systemctl isolate ..'
+        systemctl add-wants --runtime rpc-statd.service
+        exit 0
+    fi
 cd /
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