Guidance on how to debug/get a backtrace for Iceweasel

[Arthur Butler]

Hi,

I've been getting a lot of crashes on Iceweasel on Debian Stable, 
Squeeze. I suspect it's a flash/java and gdk issue as I get loads of 
'Gdk-WARNING **: XID collision, trouble ahead' warnings.

I've tried to find out what to do to get a backtrace, in order to submit 
a bug report, or narrow down the cause myself, but have not easily found 
up to date information.

When I run:
iceweasel --debugger

I get:

GNU gdb (GDB) 7.0.1-debian
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i486-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/lib/iceweasel/firefox-bin...(no debugging 
symbols found)...done.
(gdb) run
Starting program: /usr/lib/iceweasel/firefox-bin
[Thread debugging using libthread_db enabled]

{iceweasel window opens}

Program exited normally.
(gdb)


I have got iceweasel-dbg installed. I also have the latest flash via 
flashplugin-nonfree.

I've tried various other versions of running this command, but don't get 
a trace, I always get the (no debugging symbols found) message. Is that 
right? In this case I just get the gdb prompt again.

It would be helpful to give some brief, clear, up to date info on how to 
get a backtrace, perhaps on http://wiki.debian.org/Iceweasel -then you 
may get more useful bug reports too.

Thanks for your work on these packages.

Best Wishes,
A