Bug#421161: nautilus: hangs with 100% CPU for a directory containing a very wide PNG file

[Mark Longair]

Package: nautilus
Version: 2.18.1-1
Severity: normal

If you have a PNG file in a directory with very large dimensions
then trying to open that directory in nautilus causes it to hang,
consuming 100% CPU (rather than, for example, displaying the
file's icon with an hourglass while the thumbnail is generated.)

To reproduce the bug, you can try this 15KiB 39730x300 image:

  mkdir hangs-nautilus
  cd hangs-nautilus
  curl 'http://mythic-beasts.com/~mark/test-00000000.png' > test.png
  nautilus .

regards,
mark

-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 2.6.20.6 (PREEMPT)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_GB.UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages nautilus depends on:
ii  desktop-file-utils         0.11-1        Utilities for .desktop files
ii  gnome-control-center       1:2.18.1-1    utilities to configure the GNOME d
ii  libart-2.0-2               2.3.19-3      Library of functions for 2D graphi
ii  libatk1.0-0                1.18.0-2      The ATK accessibility toolkit
ii  libbonobo2-0               2.18.0-2      Bonobo CORBA interfaces library
ii  libc6                      2.5-4         GNU C Library: Shared libraries
ii  libcairo2                  1.4.4-1       The Cairo 2D vector graphics libra
ii  libeel2-2.18               2.18.0.1-2    Eazel Extensions Library (for GNOM
ii  libesd0                    0.2.36-3      Enlightened Sound Daemon - Shared 
ii  libexif12                  0.6.13-5      library to parse EXIF files
ii  libgail-common             1.18.0-2      GNOME Accessibility Implementation
ii  libgail18                  1.18.0-2      GNOME Accessibility Implementation
ii  libgconf2-4                2.18.0.1-3    GNOME configuration database syste
ii  libglade2-0                1:2.6.0-4     library to load .glade files at ru
ii  libglib2.0-0               2.12.11-3     The GLib library of C routines
ii  libgnome-desktop-2         2.18.1-1      Utility library for loading .deskt
ii  libgnome2-0                2.18.0-4      The GNOME 2 library - runtime file
ii  libgnomecanvas2-0          2.14.0-2      A powerful object-oriented display
ii  libgnomeui-0               2.18.1-2      The GNOME 2 libraries (User Interf
ii  libgnomevfs2-0             1:2.18.1-1    GNOME Virtual File System (runtime
ii  libgtk2.0-0                2.10.11-2     The GTK+ graphical user interface 
ii  libnautilus-extension1     2.18.1-1      libraries for nautilus components 
ii  liborbit2                  1:2.14.7-0.1  libraries for ORBit2 - a CORBA ORB
ii  libpango1.0-0              1.16.2-2      Layout and rendering of internatio
ii  librsvg2-2                 2.16.1-2      SAX-based renderer library for SVG
ii  libselinux1                2.0.8-1       SELinux shared libraries
ii  libstartup-notification0   0.9-1         library for program launch feedbac
ii  libx11-6                   2:1.0.3-7     X11 client-side library
ii  libxml2                    2.6.28.dfsg-1 GNOME XML library
ii  nautilus-data              2.18.1-1      data files for nautilus
ii  shared-mime-info           0.21-1        FreeDesktop.org shared MIME databa

Versions of packages nautilus recommends:
ii  desktop-base                  4.0.1      common files for the Debian Deskto
ii  eject                         2.1.4-4    ejects CDs and operates CD-Changer
pn  fam                           <none>     (no description available)
ii  libgnomevfs2-extra            1:2.18.1-1 GNOME Virtual File System (extra m
ii  librsvg2-common               2.16.1-2   SAX-based renderer library for SVG
ii  nautilus-cd-burner            2.18.1-1   CD Burning front-end for Nautilus

-- no debconf information