Re: address@hidden: Emacs hangs while edebugging recentf.el]

[Richard M. Stallman]

    > It could be a bug in prin1-to-string.  What is the value
    > of print-circle at that time?

    It is t.  It is let-bound by the function `edebug-safe-prin1-to-string'
    that wraps the built-in `prin1-to-string'.

I did some debugging.  It seems to be a repeating recursion in print,
which should not happen because the print-circle feature should
prevent it.  Clearly there is a bug in that feature.  A backtrace
shows some objects repeating in one stack frame after another.

I started to try to figure out why.  One repeating argument was the
13th link in the list that's the 8th element of the value being
printed.  So the question is why that is not in Vprint_number_table
There must be a bug in print_preprocess, but I can't see it.

I ran out of time to debug this.  Can someone else investigate?