Emacs fatal errors

[Stanislav M. Ivankin]

1. Trying to open file with 'C-x C-f' then entering 
'/path-to-nonexistent-dir/' and trying to get list of completions by
hitting TAB. Then emacs crashes with fatal error. 
Emacs was called with -nw -Q options.
2. Trying to send bug report via 'Help->Send bug report'. Then starting
to entering text, emacs spontaneously crashes with fatal error.
3. tramp also crashes emacs, here is two strings of config:
(require 'tramp)
(setq tramp-default-method "ssh")
Calling M-x rsh, entering any host and emacs crashes with fatal error.

If GDB or strace output is needed i will generate it.

In GNU Emacs 23.0.60.3 (i686-pc-linux-gnu, GTK+ Version 2.12.1)
 of 2008-01-14 on eternote
Windowing system distributor `The X.Org Foundation', version 11.0.10400000
configured using `configure  '--with-xft' '--with-gtk' '--enable-font-backend' 
'--with-gif' '--with-png' '--with-gpm' '--with-jpeg' '--with-rsvg' 
'--with-tiff' '--with-xpm' '--prefix' '/usr''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: C
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: ru_RU.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  display-time-mode: t
  shell-dirtrack-mode: t
  tabbar-mode: t
  iswitchb-mode: t
  display-battery-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t