Had a problem. When I C-x C-b calling the buffer menu, the evil-mode also get enabled.
Never happened before.
To disable it,
;; Enable Evil
(require 'evil)
(evil-mode 0)
;; not use evil-mode
(evil-set-initial-state 'fundamental-mode 'emacs)
(evil-set-initial-state 'Buffer-menu-mode 'emacs)
(evil-set-initial-state 'shell-mode 'emacs)
Also, to check what is the current major mode, do the following query: C-h v major-mode
