[ESS] Emacs crashes when commenting code in ESS mode

[Vitalie Spinu]

  >> Sven Garbade <sfgarbade at gmail.com>
  >> on Fri, 1 Mar 2013 11:39:37 +0000 wrote:

  > Dear all,

  > from time to time I observed following problem: when commenting
  > Latex code outside a code chunk in a .Rnw file (with C-x
  > comment-region), emacs consumes much cpu power (>50%) and never
  > ends, I have to kill emacs. I never observed this problem without
  > ESS. Maybe this is auctex related? Other Ideas?
  > emacs version 24.2, ESS 12.9 on gentoo Linux

This was fixed in 12.9-1 I think, please update. In any case C-g should
help, at least it was helping in my case.

    Vitalie