Annoying message in the minibuffer after eldoc-global-mode becomes
active by default:
eldoc error: (void-function eldoc-documentation-function-default)

Note: in the ELisp mode all OK.

In GNU Emacs 25.0.50.6 (x86_64-unknown-linux-gnu, GTK+ Version 3.4.2)
 of 2014-10-18 on y470
Windowing system distributor `The X.Org Foundation', version 11.0.11204000
System Description: Debian GNU/Linux 7.6 (wheezy)

Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND GPM DBUS GCONF GSETTINGS NOTIFY LIBXML2
FREETYPE M17N_FLT LIBOTF XFT ZLIB

Important settings:
  value of $LC_MESSAGES: en_US.UTF-8
  value of $LANG: ru_RU.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Shell

Minor modes in effect:
  flx-ido-mode: t
  helm-mode: t
  helm-match-plugin-mode: t
  helm-occur-match-plugin-mode: t
  yas-global-mode: t
  yas-minor-mode: t
  recentf-mode: t
  shell-dirtrack-mode: t
  show-paren-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t

Recent input:
w i t h SPC m e s s a g e <return> M-: ( l <backspace>
g l o b a l - e l d o c - m o d e ) <return> C-p C-n
C-n C-p e l d o c SPC r o o t <backspace> <backspace>
<backspace> <backspace> e r r o r : S-SPC ( v o i d
- f u n c t i o n SPC e l d o c - d o c u m e n t a
t i o n - f u n c t i o n - d e f a u l t ) C-p C-n
C-a C-o C-k C-p C-e : C-n C-e <return> <return> I '
v e SPC d i s a b l e C-a M-f C-a C-k C-k C-k C-/ C-/
C-/ C-k C-k C-k C-/ C-p C-k C-p C-e C-p C-e C-a C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-v M-v C-v M-v C-v C-v
C-v M-v C-v C-v M-v C-v C-v C-v M-v M-v M-v M-v M-v
M-v M-v C-p C-n C-p C-n C-n C-n M-> M-< M-x C-g <C-down-mouse-4>
<C-mouse-4> C-c C-c y e s <return> <tab> <tab> C-n
C-n C-p C-p C-g M-< C-n C-n C-n C-n <help-echo> <help-echo>
C-n C-n C-n M-< C-c c <down-mouse-1> <mouse-1> C-c
C-c y e s <return> C-n C-p <return> C-n C-a C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-p C-n C-n C-e C-x o M-v
M-> C-x o M-v M-v M-> M-x <return>

Recent messages:
Sending via mail...
Sending...done
End of buffer [4 times]
eldoc error: (void-function eldoc-documentation-function-default) [3 times]
End of buffer
eldoc error: (void-function eldoc-documentation-function-default) [2 times]
Mark set
eldoc error: (void-function eldoc-documentation-function-default)
Mark set
eldoc error: (void-function eldoc-documentation-function-default) [3 times]

Load-path shadows:
None found.

Features:
(mailalias mailclient whitespace cus-edit cus-start cus-load shadow sort
mail-extr tabify imenu emacsbug message rfc822 mml mml-sec mm-decode
mm-bodies
mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail
rfc2047
rfc2045 ietf-drums mail-utils jka-compr misearch multi-isearch reporter
helm-command helm-elisp helm-eval flycheck find-func subr-x pcase dash
post-init
occidental-theme google-translate google-translate-default-ui
google-translate-core-ui google-translate-core json server flx-ido flx ido
rainbow-mode color web-mode disp-table helm-mode helm-files rx image-dired
dired-x dired-aux ffap helm-buffers helm-elscreen helm-tags helm-bookmark
helm-adaptive helm-info helm-net browse-url xml url url-proxy url-privacy
url-expand url-methods url-history url-cookie url-domsuf url-util url-parse
url-vars mailcap helm-plugin bookmark pp helm-locate helm-help
helm-match-plugin
helm-grep helm-regexp grep helm-external helm-utils helm auto-complete popup
auto-complete-clang yasnippet help-mode autopair ace-window ace-jump-mode cl
auto-complete-clang-autoloads auto-complete-autoloads autopair-autoloads
cmake-mode-autoloads ggtags-autoloads info popup-autoloads slime-autoloads
windata-autoloads yasnippet-autoloads package epg-config init compile
recentf
tree-widget wid-edit sql view thingatpt sh-script smie executable cc-mode
cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars
cc-defs
man tramp-sh tramp tramp-compat auth-source cl-macs gv eieio byte-opt
bytecomp
byte-compile cconv eieio-core gnus-util mm-util mail-prsvr password-cache
tramp-loaddefs trampver shell pcomplete format-spec dired advice help-fns
comint
ansi-color ring cal-menu easymenu calendar cal-loaddefs edmacro kmacro
cl-loaddefs cl-lib paren iimage hl-line time-date cyril-util tooltip eldoc
electric uniquify ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd
tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment
elisp-mode lisp-mode prog-mode register page menu-bar rfn-eshadow timer
select
scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame cham
georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese hebrew greek romanian slovak czech european ethiopic indian
cyrillic
chinese case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer
nadvice
loaddefs button faces cus-face macroexp files text-properties overlay sha1
md5
base64 format env code-pages mule custom widget hashtable-print-readable
backquote make-network-process dbusbind gfilenotify dynamic-setting
system-font-setting font-render-setting move-toolbar gtk x-toolkit x
multi-tty
emacs)

Memory information:
((conses 16 293338 27137)
 (symbols 48 35768 4)
 (miscs 40 190 507)
 (strings 32 73617 7479)
 (string-bytes 1 2297660)
 (vectors 16 31962)
 (vector-slots 8 717292 22175)
 (floats 8 685 294)
 (intervals 56 9520 96)
 (buffers 976 23)
 (heap 1024 42964 2857))


-- 
// Dmitry.