Your bug report #33784: 27.0.50; some case c-backward-token-2 takes cpu more and emacs hang which was filed against the emacs,cc-mode package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 33784@debbugs.gnu.org. -- 33784: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=33784 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems