Bug#768360: iceweasel: crashes with Illegal instruction at startup

[Mike Hommey]

On Thu, Nov 06, 2014 at 08:04:22PM +0100, Ondrej Zary wrote:
> Package: iceweasel
> Version: 31.2.0esr-2~deb7u1
> Severity: important
> 
> Dear Maintainer,
> after upgrading iceweasel:i386 24.8.1esr-1~deb7u1 to 31.2.0esr-2~deb7u1, it
> does not work anymore. It crashes immediately at startup with Illegal
> instruction. In safe-mode, the application window appears but then it
> immediately crashes too without a chance to do anything.
> 
> $ MOZILLA_DISABLE_PLUGINS=1 iceweasel --safe-mode
> Xlib:  extension "RANDR" missing on display ":0".
> Illegal instruction

Without knowing what particular instruction is illegal, it's hard to do
anything about it. Please try this:

$ gdb --args iceweasel --safe-mode
gdb> run
<when the crash happens>
gdb> disassemble

And send the output.

Mike