The primitive that appears in the backtraces from the older instance, but not the newer is
re_match_2_internal which is in emacs/src/regex.c. That is the inner function that does regexp matching. Could you please show a backtrace of the inner 5 or 10 C stack frames that call it? Then we will see which C primitive was called. Also, by looking at the args to that C primitive, you can see what the regexp is. _______________________________________________ Emacs-devel mailing list Emacs-devel@gnu.org http://lists.gnu.org/mailman/listinfo/emacs-devel