Hi,

http://bugs.debian.org/186593

if I open several gnome-terminal windows and then type "exit" in any one 
of them, gnome-terminal crashes completely, killing all other windows.
Perfectly reproducible here, it happens every time. It must be due to an
update which happened today (on sid) since it did not happen yesterday.
It does not happen if I close the window via the File->Close Window menu,
nor if I simply click on the close window widget with the mouse, only if I
exit the shell (bash in my case). Let me know if you want me to strace or
otherwise help you with debugging information.

Indeed, when running
gnome-terminal from an xterm (so that I can see som output before it goes
down the drain), I got:

** ERROR **: file vte.c: line 7013 (vte_terminal_process_incoming):
assertion failed: (_vte_buffer_length(terminal->pvt->incoming) > 0)
aborting...