--- a/.emacs-my	Sat May 12 21:33:24 2012 +0300
+++ b/.emacs-my	Wed Jun 06 23:26:29 2012 +0300
@@ -50,6 +50,7 @@
   (setq debug-on-error mode)
   ;; Get trace when press C-g.
   (setq debug-on-quit mode)
+  ;; (setq debug-on-signal mode)
   )
 
 (my-debug nil)