dear emacs team, after executing "ediff-revision" on a file with many indentation changes, i tried to reduce the number of presented diffs by pressing '##' which maps to 'ediff-toggle-skip-similar' but the number of diffs stayed unchanged. even pressing '!' which maps to 'ediff-update-diffs' afterwards doesn't improve the situation. thank you in advance for your kind help. frank roell ps. emacs did not crash. 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'. If you would like to further debug the crash, please read the file /usr/share/emacs/22.3/etc/DEBUG for instructions. In GNU Emacs 22.3.1 (x86_64-suse-linux-gnu, X toolkit, Xaw3d scroll bars) of 2015-03-23 on sheep22 Windowing system distributor `The X.Org Foundation', version 11.0.70000000 configured using `configure '--with-gcc' '--with-pop' '--without-hesiod' '--with-kerberos' '--with-kerberos5' '--with-leim' '--with-xim' '--with-system-malloc' '--prefix=/usr' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--localstatedir=/var' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' '--with-x' '--with-sound' '--with-xpm' '--with-jpeg' '--with-tiff' '--with-gif' '--with-png' '--with-x-toolkit=lucid' '--x-includes=/usr/include' '--x-libraries=/usr/lib64:/usr/share/X11' '--build=x86_64-suse-linux-gnu' 'build_alias=x86_64-suse-linux-gnu' 'CC=gcc' 'CFLAGS=-fmessage-length=0 -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables -g -D_GNU_SOURCE -std=gnu89 -pipe -fno-strict-aliasing -Wno-pointer-sign -Wno-unused-variable -Wno-unused-label -Wno-unprototyped-calls -DSYSTEM_PURESIZE_EXTRA=55000 -DSITELOAD_PURESIZE_EXTRA=10000 ' 'LDFLAGS='' 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: de_DE.UTF-8 locale-coding-system: utf-8 default-enable-multibyte-characters: t Major mode: Ediff Minor modes in effect: show-paren-mode: t tooltip-mode: t tool-bar-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 unify-8859-on-encoding-mode: t utf-translate-cjk-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent input: x r e p o r C-_ C-y SPC d o e s n ' t SPC w o r k C-x C-g C-x 1 C-x k C-x C-f s c r C-s t r e n d x e d i f - r e v i s C-x p p p C-a C-SPC w C-g C-g x r e p o r t Recent messages: Buffer B: Processing difference region 0 of 77 Buffer B: Processing difference region 10 of 77 Buffer B: Processing difference region 20 of 77 Buffer B: Processing difference region 30 of 77 Buffer B: Processing difference region 40 of 77 Buffer B: Processing difference region 50 of 77 Buffer B: Processing difference region 60 of 77 Buffer B: Processing difference region 70 of 77 Processing difference regions ... done Quit Quit