Bug#736471: okular: Many documents lead to extreme slow down/no display

[Dylan Thurston <dpt@bostoncoop.net>]

Package: okular
Version: 4:4.11.3-1+b1
Severity: normal

Dear Maintainer,

For a couple weeks, the unstable version of okular has been extremely
slow opening certain documents. Most of the documents were non-public,
but I just came across a public document with this behaviour:

http://media.scgp.stonybrook.edu/newsletter/SCGP_Newsletter_fall_2013-web.pdf

On my system, this document display a blank gray screen for about 30
seconds when opened. Strace reveals that it is spending a lot of time
reading the cups configuration. I've attached the bzip'ed strace
output.

Note that this does not happen with most documents.

Thanks,
	Dylan Thurston

-- System Information:
Debian Release: jessie/sid
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'unstable'), (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.13.0-rc8 (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages okular depends on:
ii  kde-runtime         4:4.11.3-1
ii  libc6               2.17-97
ii  libfreetype6        2.5.2-1
ii  libjpeg8            8d-2
ii  libkactivities6     4:4.11.5-1
ii  libkdecore5         4:4.11.5-1
ii  libkdeui5           4:4.11.5-1
ii  libkio5             4:4.11.5-1
ii  libkparts4          4:4.11.5-1
ii  libkprintutils4     4:4.11.5-1
ii  libkpty4            4:4.11.5-1
ii  libokularcore3      4:4.11.3-1+b1
ii  libphonon4          4:4.7.1-1
ii  libpoppler-qt4-3    0.18.4-10
ii  libqca2             2.0.3-5
ii  libqimageblitz4     1:0.0.6-4
ii  libqt4-dbus         4:4.8.5+git209-g718fae5+dfsg-1
ii  libqt4-declarative  4:4.8.5+git209-g718fae5+dfsg-1
ii  libqt4-svg          4:4.8.5+git209-g718fae5+dfsg-1
ii  libqt4-xml          4:4.8.5+git209-g718fae5+dfsg-1
ii  libqtcore4          4:4.8.5+git209-g718fae5+dfsg-1
ii  libqtgui4           4:4.8.5+git209-g718fae5+dfsg-1
ii  libsolid4           4:4.11.5-1
ii  libspectre1         0.2.7-2
ii  libstdc++6          4.8.2-14
ii  phonon              4:4.7.1-1
ii  zlib1g              1:1.2.8.dfsg-1

okular recommends no packages.

Versions of packages okular suggests:
ii  ghostscript            9.05~dfsg-8+b1
pn  jovie                  <none>
ii  okular-extra-backends  4:4.11.3-1+b1
ii  poppler-data           0.4.6-4
ii  texlive-binaries       2013.20130729.30972-2+b1
pn  unrar                  <none>

-- no debconf information