I just ran into the same stack overflow that's happening in Slime's manual on some of my own stuff. It turns out what my problem was is that pdfTeX really does not like whatever it is that TeXinfo generates for @macro output living in chapter and section titles. If I replaced my @FOOBAR{} with @acronym{FOOBAR} - only in chapter and section titles - it ran through fine.
If I had to make a wild guess why this fails on pdfTeX and not plain TeX, it would be that pdfTeX is stuffing the section headers into the PDF file as the bookmark tree.
-bcd