Re: emacs loops after dabbrv-expand in (inviolable) minibuffer

[Richard Stallman]

If you are using X, then the control pathway for C-g goes thru XTread_socket.
XTread_socket should arrange to call C-g.

So you need to see what happens inside XTread_socket when you type C-g
during the loop.  First of all, does XTread_socket get called?
Second, does it call kbd_buffer_store_event?  If so, with what arguments?
Why doesn't it call interrupt_signal?