Re: Did window scroll notification change?

[Richard Stallman]

    >     `window-scroll-functions' is being called ad infinitum.  Emacs
    > is partially locked, but enough C-g gets me to a point where I can
    > delete the Eshell buffer.

window-scroll-functions is run from C code.  You could put a
breakpoint at the places that call it, and that way you could debug
why it gets called.  You could see if it is getting called recursively
or in a loop, etc.