This bug report will be sent to the Bug-GNU-Emacs mailing list and the GNU bug tracker at debbugs.gnu.org. Please check that the From: line contains a valid email address. After a delay of up to one day, you should receive an acknowledgement at that address. Please write in English if possible, as the Emacs maintainers usually do not have translators for other languages. 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': I've discovered a case where shell-mode completion fails. Below are instructions for reproducing this case. (1) first, we need to create a small directory, where the files are under CVS version control. cvs -d /tmp/cvs-tmp init mkdir zz echo "# comment" > zz/Makefile cd zz cvs -d /tmp/cvs-tmp import -m "testbed" zz vendor release rm -f Makefile cvs -d /tmp/cvs-tmp/ co -d . zz After completing these steps, you should be in the zz directory, which looks like this: $ ls -l 4 drwxr-xr-x 2 srevilak users 4096 Sep 26 10:12 CVS/ 4 -rw-r--r-- 1 srevilak users 10 Sep 26 10:12 Makefile Note: all of (1) is done outside emacs (2) within the zz directory, start emacs 24.0.90 as emacs -Q . (3) From emacs, start shell mode M-x shell RET (4) within shell mode, type (without pressing RET) cvs status -v Make (5) while point is immediately after the "e" in "Make", press TAB (for tab completion). We'd like emacs to complete the filename "Makefile" (6) The message "No match" appears in the minibuffer. Emacs does not complete Make -> Makefile For regression, repeat steps (2)--(5) with Emacs 23.3. Emacs 23.3 successfully completes Make -> Makefile. This appears to have something to do with directories under CVS version control. For example, if I remove the directory "zz/CVS", and repeat steps (2)--(5) with emacs 24.0.90, then step (5) produces the following message in the minibuffer: Opening input file: no such file or directory, /home/srevilak/zz/CVS/Entries 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 /usr/local/emacs-24.0.90.1/share/emacs/24.0.90/etc/DEBUG. In GNU Emacs 24.0.90.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.22.1) of 2011-09-26 on sunny Windowing system distributor `The X.Org Foundation', version 11.0.10903000 configured using `configure '--prefix=/usr/local/emacs-24.0.90.1/'' 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: en_US.UTF-8 value of $XMODIFIERS: @im=local locale-coding-system: utf-8-unix default enable-multibyte-characters: t Major mode: Lisp Interaction Minor modes in effect: 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-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent input: M-x r e p o r t - e m Recent messages: For information about GNU Emacs and the GNU system, type C-h C-a. Load-path shadows: None found. Features: (shadow sort gnus-util mail-extr message format-spec rfc822 mml easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mailabbrev mail-utils gmm-utils mailheader emacsbug time-date tooltip ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image fringe lisp-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 loaddefs button faces cus-face files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote make-network-process dbusbind dynamic-setting system-font-setting font-render-setting move-toolbar gtk x-toolkit x multi-tty emacs)