console-setup postinstall never ends in Ubuntu 16.04

[Luis Mondesi]

Today while doing a normal `apt-get upgrade`, the latest console-setup package for Ubuntu 16.04 got stuck since 11:10 until about 14:25h when I realized it was still running and I had to kill the process manaully.

$> sudo apt-get upgrade
...
Setting up console-setup (1.108ubuntu14) ...

$> ps -ef | grep console-setup
...
       PID PPID USER NI RSS S STIME COMMAND
24542 24482 root 0 1812 S 11:10 /bin/sh /var/lib/dpkg/info/console-setup.postinst configure 1.108ubuntu13
24482 22027 root 0 18320 S 11:10 /usr/bin/perl -w /usr/share/debconf/frontend /var/lib/dpkg/info/console-setup.postinst configure 1.108ubuntu13
...
$> date
Fri Apr 15 14:25:11 EDT 2016

$> apt-cache show console-setup
Package: console-setup
Priority: important
Section: utils
Installed-Size: 437
Maintainer: Ubuntu Installer Team <email address hidden>
Original-Maintainer: Debian Install System Team <email address hidden>
Architecture: all
Version: 1.108ubuntu14

[Luis Mondesi (lemsx1)]

Ran the same `sudo apt-get upgrade` after updating my lists and got the same behavior:

$> lsproc console-setup
  PID PPID USER NI RSS S STIME COMMAND
22693 22692 root 0 18628 S 14:27 /usr/bin/perl -w /usr/share/debconf/frontend /var/lib/dpkg/info/console-setup.postinst configure 1.108ubuntu13
22692 18652 root 0 13864 S 14:27 /usr/bin/dpkg --status-fd 47 --configure console-setup:all ubuntu-minimal:amd64 libssl-doc:all libssl1.0.0:amd64 libssl1.0.0:i386 libssl-dev:amd64 openssl:amd64 libwnck-3-common:all libwnck-3-0:amd64 gir1.2-wnck-3.0:amd64
22752 22693 root 0 1640 S 14:27 /bin/sh /var/lib/dpkg/info/console-setup.postinst configure 1.108ubuntu13

[Luis Mondesi (lemsx1)]

This is the strace

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.