[Bug 1714429] Re: hang on shutdown with static network configuration

[Aaron Brülisauer]

I have tested it again on the host. The host shuts down properly. May be
fixed by an update? I don't know. How ever, I can't reproduce it right
now. I'll reopen the bug report in the future, if I can reproduce it.

Salutations
Aaron

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https://bugs.launchpad.net/bugs/1714429

Title:
  hang on shutdown with static network configuration

Status in unattended-upgrades package in Ubuntu:
  New

Bug description:
  Hi Folks


  Problem:

  system doesn't reboot/shutdown but *only* when the network
  configuration is static (described below). When I change the network
  configuration to dhcp, the bug doesn't occur.


  The network configuration is set to static:

  iface eth0 inet static
    address my_ip
    netmask 255.255.255.224
    gateway router_ip
    dns-nameservers primary_dns secondary_dns 8.8.8.8 8.8.4.4
  (I have masked some configuration values)


  lsb_release -rd
  Release:        16.04


  apt-cache policy unattended-upgrades
  Installed: 0.90ubuntu0.7
  Candidate: 0.90ubuntu0.7


  symptoms:

  a python3 process appears ~2sec after the shutdown command: 2005
  python3 /usr/share/unattended-upgrades/unattended-upgrade-shutdown

  Screenshot of the VM virtual display output as attachment.

  only / is mounted, all other file systems are unmounted already:
  /boot, /var, /tmp, /var/log, /var/tmp


  other informations:

  The network still works. I can ping different addresses like
  google.com, debian.org, and other stuff.

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