Comment 4 for bug 1161368

Seeing the same thing here:

root 796 0.0 0.1 65792 14632 pts/18 SN+ 11:06 0:00 \_ /usr/bin/perl -w /usr/share/debconf/frontend /var/lib/dpkg/tmp.ci/preinst install

root@ornery:~# strace -p 796
Process 796 attached - interrupt to quit
read(3, ^C <unfinished ...>
Process 796 detached
root@ornery:~# ls -l /proc/796/fd
total 0
lrwx------ 1 root root 64 Mar 28 12:30 0 -> /dev/pts/18
lrwx------ 1 root root 64 Mar 28 12:30 1 -> /dev/pts/18
lrwx------ 1 root root 64 Mar 28 12:28 2 -> /dev/pts/18
lrwx------ 1 root root 64 Mar 28 12:30 3 -> socket:[1579918]
lrwx------ 1 root root 64 Mar 28 12:30 4 -> /var/cache/debconf/config.dat
lrwx------ 1 root root 64 Mar 28 12:30 5 -> /var/cache/debconf/passwords.dat
lrwx------ 1 root root 64 Mar 28 12:30 6 -> /var/cache/debconf/templates.dat
lrwx------ 1 root root 64 Mar 28 12:30 84 -> /dev/pts/17
root@ornery:~#