[Bug 1714429] [NEW] hang on shutdown with static network configuration

[Aaron Brülisauer]

Public bug reported:

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.

** Affects: unattended-upgrades (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "Screenshot"
   https://bugs.launchpad.net/bugs/1714429/+attachment/4942217/+files/Screenshot_20170901_085822.png

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to unattended-upgrades in Ubuntu.
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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/1714429/+subscriptions