This bug report will be sent to the Free Software Foundation, not to your local site managers! Please write in English if possible, because the Emacs maintainers usually do not have translators to read other languages for them. Your bug report will be posted to the bug-gnu-emacs@gnu.org mailing list, and to the gnu.emacs.bug news group. Please describe exactly what actions triggered the bug and the precise symptoms of the bug. If you can, give a recipe starting from `emacs -Q': In comint.el, the following key definitions have been added to comint-mode-map: ;; The following two are standardly aliased to C-d, ;; but they should never do EOF, just delete. (define-key map [delete] 'delete-char) (define-key map [kp-delete] 'delete-char) Now, I understand the motivation here BUT, typically, one only defines mode-specific C-c bindings and mode-specific pull-down menu bindings in mode maps. In my case, I have delete and kp-delete assigned to perform an entirely different function. This is the first time any mode map has ever usurped my custom assignments to the delete and kp-delete keys. In addition, the above reassignment assumes the user is using a PC type of keyboard. If one is using a DEC VT series keyboard, or a DEC VT terminal series emulator, then the Delete key is located where the PC Backspace key is located. In this case, the Delete key assignment in the global-map will be to DEL, not C-d. A better approach is NOT to make these assignments unilaterally. Instead, the code should examine the current key assignment for delete and kp-delete in current-global-map. ONLY IF the current assignment is "C-d" should the above redefinitions be made. If Emacs crashed, and you have the Emacs process in the gdb debugger, please include the output from the following gdb commands: `bt full' and `xbacktrace'. For information about debugging Emacs, please read the file /users/gallagk/src/emacs-23.1.93/etc/DEBUG. In GNU Emacs 23.1.93.1 (i686-pc-linux-gnu, GTK+ Version 2.10.4) of 2010-02-28 on houfcs101 Windowing system distributor `AT&T Laboratories Cambridge', version 11.0.3332 configured using `configure '--prefix=/users/gallagk/usr/local53'' Important settings: value of $LC_ALL: nil value of $LC_COLLATE: nil 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: C value of $XMODIFIERS: nil locale-coding-system: nil default enable-multibyte-characters: t Major mode: Emacs-Lisp Minor modes in effect: shell-dirtrack-mode: t show-paren-mode: t display-time-mode: t tooltip-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent input: ~ / s r c / u s r / l o c a l . l i s p SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC f SPC p f x e d i f f SPC b u f f SPC n n n n p n p n p n p n n n p n n n n n n n n n n n n n n n n n n n C-h k e o C-/ q q y C-h i q C-h f c o m i n t - d e l c h a r - o r - m a y b e - e o f C-x 1 C-h k C-h k C-h k C-x 1 b SPC SPC f x r e p o r SPC b u g SPC Recent messages: Only white-space differences in region 22 Refining difference region 23 ... Region 24 in buffer A is empty [2 times] Type C-x 4 C-o RET to restore the other window. Undo! Quit this Ediff session? (y or n) Composing main Info directory...done Type C-x 4 C-o RET to restore the other window. Type C-x 1 to delete the help window. Commands: d, s, x, u; f, o, 1, 2, m, v; ~, %; q to quit; ? for help. Load-path shadows: None found. Features: (shadow sort mail-extr message sendmail ecomplete rfc822 mml mml-sec password-cache mm-decode mm-bodies mm-encode mailcap mail-parse rfc2231 rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader gnus-util netrc time-date mm-util mail-prsvr gmm-utils wid-edit mailheader canlock sha1 hex-util hashcash mail-utils emacsbug info ediff-merg ediff-diff ediff-wind ediff-help ediff-util ediff-mult ediff-init ediff multi-isearch dired-aux help-mode view ansi-color shell edt picture ehelp electric clearcase advice help-fns advice-preload tq reporter executable easymenu dired regexp-opt comint ring cl cl-19 filladapt paren time tooltip ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd font-setting tool-bar dnd fontset image fringe lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar mldrag 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 loaddefs button minibuffer faces cus-face files text-properties overlay md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote make-network-process dbusbind system-font-setting font-render-setting gtk x-toolkit x multi-tty emacs)