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

[Mike Hommey]

On Thu, Dec 22, 2011 at 01:18:23AM +0100, Cesare Leonardi wrote:
> 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.

Please follow the instructions in /usr/share/bug/iceweasel/presubj.

Mike