Bug#652941: iceweasel: Always crash on a specific website

[Cesare Leonardi]

Package: iceweasel
Version: 9.0-1
Severity: normal

Since some version, Iceweasel always crash instantly whenever i try to
open this site (an italian online radio):
http://www.m2o.it

It's an highly flash based site (i have 3:11.1.102.55-0.0 from Christian
Marillat).

Today i've tried to start the browser from the console and the error i
obtain when i open the site above seems useful:
--------------
$ iceweasel 
Mesa 7.11.2 implementation error: unexpected format in
_mesa_choose_tex_format()
Please report at bugs.freedesktop.org
Mesa 7.11.2 implementation error: unexpected MESA_FORMAT for
renderbuffer
Please report at bugs.freedesktop.org
###!!! ABORT: Divide by zero: file
/build/buildd-iceweasel_9.0-1-i386-kBwYso/iceweasel-9.0/toolkit/xre/nsSigHandlers.cpp,
line 174
###!!! ABORT: Divide by zero: file
/build/buildd-iceweasel_9.0-1-i386-kBwYso/iceweasel-9.0/toolkit/xre/nsSigHandlers.cpp,
line 174
Segmentation fault
$ 
--------------

I suspect this is a regression between Mesa (or Intel video driver) and
my old i855 graphic adapter.
Maybe someone else reading this, with different graphic card can test if
his Iceweasel crash on the above site.
I can only say that Firefox under Windows 2000 doesn't crash.

I'm not sure if it is an Iceweasel's bug or should i follow the advice
to open a bug to Mesa upstream?
Shouldn't iceweasel handle the error condition more gracefully? And why
other browser (Chromium and Midori) can open the above site without
problem? To me Iceweasel has some responsibility.

Ciao.

Cesare.


-- Package-specific info:


-- Addons package information

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 3.1.0-1-486
Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages iceweasel depends on:
ii  debianutils         4.1
ii  fontconfig          2.8.0-3
ii  libc6               2.13-23
ii  libgdk-pixbuf2.0-0  2.24.0-2
ii  libglib2.0-0        2.30.2-4
ii  libgtk2.0-0         2.24.8-2
ii  libnspr4-0d         4.8.9-1
ii  libstdc++6          4.6.2-9
ii  procps              1:3.3.1-1
ii  xulrunner-9.0       9.0-1

iceweasel recommends no packages.

Versions of packages iceweasel suggests:
ii  libgssapi-krb5-2    1.10+dfsg~alpha1-6
ii  mozplugger          <none>
ii  ttf-lyx             2.0.2-1
ii  ttf-mathematica4.1  <none>
ii  xfonts-mathml       4

Versions of packages xulrunner-9.0 depends on:
ii  libasound2                1.0.24.1-4
ii  libatk1.0-0               2.2.0-2
ii  libbz2-1.0                1.0.6-1
ii  libc6                     2.13-23
ii  libcairo2                 1.10.2-6.2
ii  libdbus-1-3               1.4.16-1
ii  libevent-2.0-5            2.0.16-stable-1
ii  libfontconfig1            2.8.0-3
ii  libfreetype6              2.4.8-1
ii  libgcc1                   1:4.6.2-9
ii  libgdk-pixbuf2.0-0        2.24.0-2
ii  libglib2.0-0              2.30.2-4
ii  libgtk2.0-0               2.24.8-2
ii  libhunspell-1.3-0         1.3.2-4
ii  libjpeg8                  8c-2
ii  libmozjs9d                9.0-1
ii  libnotify4                0.7.4-1
ii  libnspr4-0d               4.8.9-1
ii  libnss3-1d                3.13.1.with.ckbi.1.88-1
ii  libpango1.0-0             1.29.4-2
ii  libpixman-1-0             0.24.0-1
ii  libreadline6              6.2-8
ii  libsqlite3-0              3.7.9-2
ii  libstartup-notification0  0.12-1
ii  libstdc++6                4.6.2-9
ii  libvpx0                   0.9.7.p1-2
ii  libx11-6                  2:1.4.4-4
ii  libxext6                  2:1.3.0-3
ii  libxrender1               1:0.9.6-2
ii  libxt6                    1:1.1.1-2
ii  zlib1g                    1:1.2.3.4.dfsg-3

Versions of packages xulrunner-9.0 suggests:
pn  libcanberra0      0.28-3
pn  libdbus-glib-1-2  0.98-1
pn  libgnomeui-0      <none>

-- no debconf information