Thanks for your bug report. Can you try the following:
gnome-session-remove nautilus
gdb nautilus
(gdb) set logging on
(gdb) break gdk_x_error
(answer 'y' to "Make breakpoint pending on future shared library load?")
(gdb) run --sync
<...>
(gdb) thread apply all bt full
Thanks for your bug report. Can you try the following:
gnome-session- remove nautilus
gdb nautilus
(gdb) set logging on
(gdb) break gdk_x_error
(answer 'y' to "Make breakpoint pending on future shared library load?")
(gdb) run --sync
<...>
(gdb) thread apply all bt full
and attach the gdb.txt to this bug report.