bryan o'connor <bryan@lunch.org> writes:

> > Does the following patch (where I, on a hunch, try using XSETBUFFER
> > whenever assigning a buffer, without a clue about whether this has any
> > relevance or not) change anything?
> 
> unfortunately no difference.  the backtrace looks similar.

Undo the patch.  Does the following patch help in any manner?