While typing the following, rather ordinary shell script in sh-mode, Emacs freezes and consumes full CPU. I had to kill the process. --- snip --- #!/bin/sh ######################################################################## # # location-cascade # $Id$ # # Requires 'lynx' # ######################################################################## # User-agent # internet exploiter 10 for best results from spammy sites ;) UA='Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)' httpcode=0 uri=$1 while --- snip --- The bug is fully reproducible after recover-this-buffer. In text-mode, the bug does not occur. If the 'while' is part of a complete loop 'while :; do something; done; the bug does not occur. I guess, it is a bug in sh-mode, but reading LISP is hard for me, so I did not investigate further. Elias In GNU Emacs 24.5.1 (x86_64-pc-linux-gnu, GTK+ Version 3.18.9) of 2016-04-17 on lgw01-04, modified by Debian Windowing system distributor `The X.Org Foundation', version 11.0.11804000 System Description: Ubuntu 16.04.1 LTS Configured using: `configure --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/lib --localstatedir=/var/lib --infodir=/usr/share/info --mandir=/usr/share/man --with-pop=yes --enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.5/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.5/site-lisp:/usr/share/emacs/site-lisp --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/lib --localstatedir=/var/lib --infodir=/usr/share/info --mandir=/usr/share/man --with-pop=yes --enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.5/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.5/site-lisp:/usr/share/emacs/site-lisp --with-x=yes --with-x-toolkit=gtk3 --with-toolkit-scroll-bars 'CFLAGS=-g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' 'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro'' Important settings: value of $LANG: de_DE.UTF-8 value of $XMODIFIERS: @im=ibus locale-coding-system: utf-8-unix Major mode: Shell-script Minor modes in effect: sh-electric-here-document-mode: t server-mode: t show-paren-mode: t tooltip-mode: t electric-indent-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 messages: Loading /etc/emacs/site-start.d/50php-elisp.el (source)...done Loading /etc/emacs/site-start.d/50pylint.el (source)...done Loading /etc/emacs/site-start.d/50pymacs.el (source)...done Loading /etc/emacs/site-start.d/50python-mode.el (source)...done Loading /etc/emacs/site-start.d/50w3m-el.el (source)...done Loading paren...done For information about GNU Emacs and the GNU system, type C-h C-a. Setting up indent for shell type sh Indentation variables are now local. Indentation setup for shell type sh Load-path shadows: /usr/share/emacs24/site-lisp/css-mode/css-mode hides /usr/share/emacs/site-lisp/css-mode/css-mode /usr/share/emacs/24.5/site-lisp/debian-startup hides /usr/share/emacs/site-lisp/debian-startup /usr/share/emacs24/site-lisp/cmake-data/cmake-mode hides /usr/share/emacs/site-lisp/cmake-mode /usr/share/emacs24/site-lisp/flim/hex-util hides /usr/share/emacs/24.5/lisp/hex-util /usr/share/emacs24/site-lisp/flim/md4 hides /usr/share/emacs/24.5/lisp/md4 /usr/share/emacs24/site-lisp/html-helper-mode/tempo hides /usr/share/emacs/24.5/lisp/tempo /usr/share/emacs24/site-lisp/css-mode/css-mode hides /usr/share/emacs/24.5/lisp/textmodes/css-mode /usr/share/emacs24/site-lisp/flim/sasl-cram hides /usr/share/emacs/24.5/lisp/net/sasl-cram /usr/share/emacs24/site-lisp/flim/sasl-digest hides /usr/share/emacs/24.5/lisp/net/sasl-digest /usr/share/emacs24/site-lisp/flim/ntlm hides /usr/share/emacs/24.5/lisp/net/ntlm /usr/share/emacs24/site-lisp/flim/sasl hides /usr/share/emacs/24.5/lisp/net/sasl /usr/share/emacs24/site-lisp/flim/hmac-md5 hides /usr/share/emacs/24.5/lisp/net/hmac-md5 /usr/share/emacs24/site-lisp/flim/hmac-def hides /usr/share/emacs/24.5/lisp/net/hmac-def /usr/share/emacs24/site-lisp/flim/sasl-ntlm hides /usr/share/emacs/24.5/lisp/net/sasl-ntlm /usr/share/emacs24/site-lisp/html-helper-mode/hhm-config hides /usr/share/emacs/site-lisp/html-helper-mode/hhm-config /usr/share/emacs24/site-lisp/html-helper-mode/tempo hides /usr/share/emacs/site-lisp/html-helper-mode/tempo /usr/share/emacs24/site-lisp/html-helper-mode/html-helper-mode hides /usr/share/emacs/site-lisp/html-helper-mode/html-helper-mode /usr/share/emacs24/site-lisp/html-helper-mode/visual-basic-mode hides /usr/share/emacs/site-lisp/html-helper-mode/visual-basic-mode Features: (shadow sort mail-extr emacsbug message cl-macs format-spec rfc822 mml easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mail-utils sh-script smie executable iso-transl mmm-mode mmm-univ mmm-class mmm-region mmm-utils server paren cus-start cus-load w3m-load mmm-auto mmm-vars mmm-compat cl gv emacs-goodies-el emacs-goodies-custom emacs-goodies-loaddefs easy-mmode tempo url url-proxy url-privacy url-expand url-methods url-history url-cookie url-domsuf url-util url-parse auth-source eieio byte-opt bytecomp byte-compile cl-extra cl-loaddefs cl-lib cconv eieio-core gnus-util mm-util help-fns mail-prsvr password-cache url-vars mailcap xml-parse doxymacs devhelp time-date tooltip 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 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 114935 7834) (symbols 48 22382 0) (miscs 40 51 101) (strings 32 23202 4636) (string-bytes 1 648192) (vectors 16 13251) (vector-slots 8 433598 5159) (floats 8 72 297) (intervals 56 322 0) (buffers 960 12) (heap 1024 51217 1008)) -- PGP-Key Fingerprint: DE88 67E6 C80F 4D55 1F9E 38A8 2AE4 FF3B 8A9F 739A Key verfügbar unter: http://www.tamagothi.de/vorstellung/pgp-key/