When networking is hung, stopping ssh.service will also resolve the hang, but reloading or restating ssh.service will hang as well. There are no problems restarting or reloading ssh.service in other circumstances.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ifupdown in Ubuntu. https://bugs.launchpad.net/bugs/1584393 Title: systemctl restart networking hangs reloading ssh.service Status in ifupdown package in Ubuntu: New Bug description: Issues "systemctl restart networking" never exits. It hangs during a call to "systemctl reload ssh.service": ● networking.service - Raise network interfaces Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled) Drop-In: /run/systemd/generator/networking.service.d └─50-insserv.conf-$network.conf Active: activating (start) since Sat 2016-05-21 21:41:58 UTC; 18s ago Docs: man:interfaces(5) Process: 1288 ExecStop=/sbin/ifdown -a --read-environment (code=exited, status=0/SUCCESS) Process: 1376 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ -n "$(ifquery --read-environment --list --exclude=lo)" ] & Main PID: 1383 (ifup) Tasks: 7 (limit: 512) Memory: 1.8M CPU: 111ms CGroup: /system.slice/networking.service ├─1383 /sbin/ifup -a --read-environment ├─1479 /sbin/dhclient -1 -v -pf /run/dhclient.enp0s3.pid -lf /var/lib/dhcp/dhclient.enp0s3.leases -I -df /var/lib/dhcp/dhclient6 ├─1480 /bin/sh -c /bin/run-parts --exit-on-error /etc/network/if-up.d ├─1481 /bin/run-parts --exit-on-error /etc/network/if-up.d ├─1504 /bin/sh /etc/network/if-up.d/openssh-server ├─1507 /bin/sh /usr/sbin/invoke-rc.d ssh reload └─1527 systemctl reload ssh.service Then issuing the same command from another terminal causes the first to exit successfully (the second also exists successfully). On the official vagrant image, I get this problem independently of whether the command is issued through and ssh session. I've gotten the same behavior on the official xenial AMIs. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: ifupdown 0.8.10ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 Date: Sat May 21 21:35:08 2016 ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: ifupdown UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1584393/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
