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[Paddy Landau <993265@xxxxxxxxxxxxxxxxxx>]

Here again, but note the error with the break command. I also was not
sure whether to use "y" or "n" to its question, so I used "n".

$ env DISPLAY=:0 gdb /usr/bin/gtk-window-decorator
GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2) 7.4-2012.04
Copyright (C) 2012 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 "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /usr/bin/gtk-window-decorator...(no debugging symbols found)...done.
(gdb) break gdk_x_error
Function "gdk_x_error" not defined.
Make breakpoint pending on future shared library load? (y or [n]) n
(gdb) run --sync --replace
Starting program: /usr/bin/gtk-window-decorator --sync --replace
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffef1a6700 (LWP 7376)]
[New Thread 0x7fffee9a5700 (LWP 7377)]
The program 'gtk-window-decorator' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadWindow (invalid Window parameter)'.
  (Details: serial 15597 error_code 3 request_code 20 minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
[Thread 0x7fffef1a6700 (LWP 7376) exited]
[Thread 0x7fffee9a5700 (LWP 7377) exited]
[Inferior 1 (process 7373) exited with code 01]
(gdb) bt
No stack.
(gdb)

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https://bugs.launchpad.net/bugs/993265

Title:
  Wine breaks window decorations for all applications (gtk-window-
  decorator crashes)

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