Bug#623692: iceweasel: dragging page content consumes horrendous amount of CPU time

Michal Suchanek michal.suchanek at ruk.cuni.cz
Fri Apr 22 10:18:20 UTC 2011


Package: iceweasel
Version: 3.6.16-1
Severity: normal


1. Go to http://members.dslextreme.com/users/billw/gkrellm/gkrellm.html
2. Press Ctrl+A to select the page (the page is broken and unreadable
without this).
3. Drag the page content and then release the moues button.

Now a smaller version of the page content appears offset by the drag
slowly returning back where the drag started consuming horrendous amount
of CPU time.

The smaller version of page content is also visible at other pages but
on this one Iceweasel is substantially slowed down by rendering it.


-- Package-specific info:

-- Plugins information
Name: Shockwave Flash
Location: /usr/lib/lightspark/liblightsparkplugin.so
Package: browser-plugin-lightspark
Status: enabled


-- Addons package information
ii  browser-plugin 0.4.6.1-2      High-performance SWF player - Mozilla Plugin
ii  iceweasel      3.6.16-1       Web browser based on Firefox

-- System Information:
Debian Release: 6.0.1
  APT prefers stable
  APT policy: (900, 'stable'), (700, 'oldstable'), (510, 'unstable'), (500, 'testing'), (200, 'experimental'), (111, 'oldstable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.38-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages iceweasel depends on:
ii  debianutils                   3.4        Miscellaneous utilities specific t
ii  fontconfig                    2.8.0-2.1  generic font configuration library
ii  libc6                         2.11.2-10  Embedded GNU C Library: Shared lib
ii  libglib2.0-0                  2.28.6-1   The GLib library of C routines
ii  libgtk2.0-0                   2.24.4-3   The GTK+ graphical user interface 
ii  libnspr4-0d                   4.8.6-1    NetScape Portable Runtime Library
ii  libstdc++6                    4.6.0-3    The GNU Standard C++ Library v3
ii  procps                        1:3.2.8-9  /proc file system utilities
ii  xulrunner-1.9.2               1.9.2.16-1 XUL + XPCOM application runner

iceweasel recommends no packages.

Versions of packages iceweasel suggests:
ii  latex-xft-fonts             1.6.7-1      TrueType versions of some TeX font
ii  libgssapi-krb5-2            1.8.3+dfsg-4 MIT Kerberos runtime libraries - k
pn  mozplugger                  <none>       (no description available)
ii  ttf-lyx                     1.6.7-1      TrueType versions of some TeX font
pn  ttf-mathematica4.1          <none>       (no description available)
ii  xfonts-mathml               4            Type1 Symbol font for MathML
pn  xprint                      <none>       (no description available)

Versions of packages xulrunner-1.9.2 depends on:
ii  libasound2             1.0.23-2.1        shared library for ALSA applicatio
ii  libatk1.0-0            1.30.0-1          The ATK accessibility toolkit
ii  libbz2-1.0             1.0.5-6           high-quality block-sorting file co
ii  libc6                  2.11.2-10         Embedded GNU C Library: Shared lib
ii  libcairo2              1.10.2-6          The Cairo 2D vector graphics libra
ii  libdbus-1-3            1.2.24-4          simple interprocess messaging syst
ii  libevent-1.4-2         1.4.13-stable-1   An asynchronous event notification
ii  libffi5                3.0.9-3           Foreign Function Interface library
ii  libfontconfig1         2.8.0-2.1         generic font configuration library
ii  libfreetype6           2.4.2-2.1         FreeType 2 font engine, shared lib
ii  libgcc1                1:4.4.5-8         GCC support library
ii  libglib2.0-0           2.28.6-1          The GLib library of C routines
ii  libgtk2.0-0            2.24.4-3          The GTK+ graphical user interface 
ii  libhunspell-1.2-0      1.2.11-1          spell checker and morphological an
ii  libjpeg62              6b1-1             The Independent JPEG Group's JPEG 
ii  libmozjs3d             1.9.2.16-1        The Mozilla SpiderMonkey JavaScrip
ii  libnspr4-0d            4.8.6-1           NetScape Portable Runtime Library
ii  libnss3-1d             3.12.8-1+squeeze1 Network Security Service libraries
ii  libpango1.0-0          1.28.3-6          Layout and rendering of internatio
ii  libpixman-1-0          0.21.6-2          pixel-manipulation library for X a
ii  libpng12-0             1.2.44-1          PNG library - runtime
ii  libreadline6           6.1-3             GNU readline and history libraries
ii  libsqlite3-0           3.7.3-1           SQLite 3 shared library
ii  libstartup-notificatio 0.10-1            library for program launch feedbac
ii  libstdc++6             4.6.0-3           The GNU Standard C++ Library v3
ii  libx11-6               2:1.3.3-4         X11 client-side library
ii  libxrender1            1:0.9.6-1         X Rendering Extension client libra
ii  libxt6                 1:1.0.7-1         X11 toolkit intrinsics library
ii  zlib1g                 1:1.2.3.4.dfsg-3  compression library - runtime

-- no debconf information





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