[Bug: 21.5-b33] Crash in count-screen-lines

================================================================ Dear Bug Team! Here's a 100% repeatable crash for me. With xemacs -vanilla, enter (count-screen-lines nil nil nil (minibuffer-window)) into *scratch*. Press C-j to execute this line. This instantly crashes for me. I found this when playing with git.el with my hacked display-message-or-buffer function that executes the above count-screen-lines when given a buffer. Ray ================================================================ System Info to help track down your bug: --------------------------------------- uname -a: Linux rtoy2.mtv.corp.google.com 3.2.5-gg987 #1 SMP Fri Sep 14 02:36:36 PDT 2012 x86_64 x86_64 x86_64 GNU/Linux ../xemacs/configure '--prefix=/usr/local/google/home/rtoy' '--with-mule' '--with-xft=emacs,menubars' XEmacs 21.5-b33 "horseradish" 8b5bdc8aebfd+ configured for `x86_64-unknown-linux'. Compilation Environment and Installation Defaults: Source code location: /usr/local/google/home/rtoy/src/XEmacs/xemacs Installation prefix: /usr/local/google/home/rtoy Operating system description file: `s/linux.h' Not using any machine description file Compiler version: gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3 - GCC specs file: specs. - Compiler command: gcc -Wall -Wno-switch -Wundef -Wsign-compare -Wno-char-subscripts -Wpacked -Wshadow -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wdeclaration-after-statement -Wunused-parameter -g libc version: GNU libc 2.15-0ubuntu10.3 (Debian) Relocating allocator for buffers: no GNU version of malloc: yes - Using Doug Lea's new malloc from the GNU C Library. Package Search (a 'root' contains '{xemacs,mule,site}-packages'): User package roots: ~/.xemacs System package roots: /usr/local/google/home/rtoy/share/xemacs Window System: Compiling in support for the X window system: - X Windows headers location: - X Windows libraries location: - Handling WM_COMMAND properly. - Using fontconfig to manage fonts. - Compiling in support for Xft antialiased fonts (EXPERIMENTAL). Compiling in support for the Athena widget set: - Athena headers location: X11/Xaw - Athena library to link: Xaw Using Lucid menubars. - Using Xft to render antialiased fonts in menubars. WARNING: This Xft feature will be replaced with a face. Using Lucid scrollbars. Using Athena dialog boxes. Using Athena native widgets. TTY: Compiling in support for ncurses. Images: Compiling in support for XPM images. Compiling in support for PNG images. Compiling in support for JPEG images. Sound: Compiling in support for sound (native). Compiling in support for ALSA (Advanced Linux Sound Architecture). Databases: Compiling in support for LDAP. Internationalization: Compiling in support for Mule (multi-lingual Emacs). Compiling in support for XIM (X11R5+ I18N input method). - Using raw Xlib to provide XIM support. Mail: Compiling in support for "file" mail spool file locking method. Other Features: Inhibiting IPv6 canonicalization at startup. Compiling in support for dynamic shared object modules. Using the new GC mark algorithms (KKCC). WARNING: --------------------------------------------------------- WARNING: The new algorithms are experimental. They are enabled by WARNING: default for this release. Use `--disable-kkcc' to WARNING: turn it off. WARNING: --------------------------------------------------------- Using the new portable dumper. Dumping into executable. Compiling in support for extra debugging code. Compiling in support for runtime error checking. WARNING: --------------------------------------------------------- WARNING: XEmacs will run noticeably more slowly as a result. WARNING: Error checking is on by default for XEmacs beta releases. WARNING: --------------------------------------------------------- Load-Path Lisp Shadows: ---------------------- (/usr/local/google/home/rtoy/.xemacs/site-packages/lisp/ido /usr/local/google/home/rtoy/.xemacs/site-packages/lisp/xemacs-hacks/ido /usr/local/google/home/rtoy/quicklisp/dists/quicklisp/software/slime-20121223-cvs/contrib/bridge /usr/local/google/home/rtoy/share/xemacs/xemacs-packages/lisp/ilisp/bridge /usr/local/google/home/rtoy/share/xemacs/xemacs-packages/lisp/cedet-common/working /usr/local/google/home/rtoy/share/xemacs/xemacs-packages/lisp/semantic/working /usr/local/google/home/rtoy/share/xemacs/xemacs-packages/lisp/cedet-common/sformat /usr/local/google/home/rtoy/share/xemacs/xemacs-packages/lisp/semantic/sformat /usr/local/google/home/rtoy/share/xemacs/mule-packages/lisp/mule-base/korea-util /usr/local/google/home/rtoy/share/xemacs-21.5-b33/lisp/mule/korea-util /usr/local/google/home/rtoy/share/xemacs/mule-packages/lisp/mule-base/china-util /usr/local/google/home/rtoy/share/xemacs-21.5-b33/lisp/mule/china-util /usr/local/google/home/rtoy/share/xemacs/mule-packages/lisp/mule-base/viet-util /usr/local/google/home/rtoy/share/xemacs-21.5-b33/lisp/mule/viet-util /usr/local/google/home/rtoy/share/xemacs/mule-packages/lisp/mule-base/ethio-util /usr/local/google/home/rtoy/share/xemacs-21.5-b33/lisp/mule/ethio-util /usr/local/google/home/rtoy/share/xemacs/mule-packages/lisp/mule-base/japan-util /usr/local/google/home/rtoy/share/xemacs-21.5-b33/lisp/mule/japan-util /usr/local/google/home/rtoy/share/xemacs/xemacs-packages/lisp/xemacs-base/easy-mmode /usr/local/google/home/rtoy/share/xemacs-21.5-b33/lisp/easy-mmode /usr/local/google/home/rtoy/share/xemacs/mule-packages/lisp/mule-ucs/unicode /usr/local/google/home/rtoy/share/xemacs-21.5-b33/lisp/unicode /usr/local/google/home/rtoy/share/xemacs/xemacs-packages/lisp/apel/alist /usr/local/google/home/rtoy/share/xemacs-21.5-b33/lisp/alist /usr/local/google/home/rtoy/share/xemacs/xemacs-packages/lisp/xemacs-base/regexp-opt /usr/local/google/home/rtoy/share/xemacs-21.5-b33/lisp/regexp-opt /usr/local/google/home/rtoy/share/xemacs/xemacs-packages/lisp/build/build-report /usr/local/google/home/rtoy/share/xemacs-21.5-b33/lisp/build-report) Internationalization Settings: ------------------------- Environment: 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 : en_US.UTF-8 Lisp locale settings: current-language-environment => "English (UTF-8)" default-buffer-file-coding-system => utf-8 default-process-coding-system => (undecided . utf-8) (current-locale) => "en_US.UTF-8" keyboard-coding-system => utf-8 terminal-coding-system => utf-8 (coding-priority-list) => (utf-8 iso-8-1 utf-16-little-endian-bom utf-16-bom utf-8-bom iso-7 no-conversion iso-8-2 iso-8-designate iso-lock-shift shift-jis big5 utf-16-little-endian utf-16 ucs-4) Coding system aliases: 'native is aliased to utf-8 'file-name is aliased to utf-8 'mswindows-multibyte-system-default is not a coding system alias Installed XEmacs Packages: ------------------------- (zenirc ver: 1.16 upstream: 2.112) (xwem ver: 1.23 upstream: lg(a)xwem.org--2005/xwem--main--2.1--versionfix-1) (xslt-process ver: 1.12 upstream: 1.2.1) (xslide ver: 1.09 upstream: 0.2.2) (xlib ver: 1.14 upstream: lg(a)xwem.org--2005/xlib--main--2.1--version-0) (xetla ver: 1.02 upstream: steve(a)eicq.org--2005/xetla--main--1.1--version-0) (xemacs-devel ver: 1.82 upstream: No-Upstream-Ver) (xemacs-base ver: 2.32 upstream: No-Upstream-Ver) (x-symbol ver: 1.13 upstream: 4.5.1) (w3 ver: 1.38 upstream: 4.0pre47) (vm ver: 8.08 upstream: 8.0.12-devo) (viper ver: 1.67 upstream: 3.09) (view-process ver: 1.13 upstream: 2.4) (vhdl ver: 1.22 upstream: 3.33.12) (vc-cc ver: 1.22 upstream: No-Upstream-Ver) (vc ver: 1.48 upstream: No-Upstream-Ver) (tramp ver: 1.4 upstream: 2.0.56) (tpu ver: 1.14 upstream: 4.2X) (tooltalk ver: 1.15 upstream: No-Upstream-Ver) (tm ver: 1.39 upstream: No-Upstream-Ver) (time ver: 1.14 upstream: 1.17) (textools ver: 1.15 upstream: No-Upstream-Ver) (text-modes ver: 2.01 upstream: No-Upstream-Ver) (texinfo ver: 1.3 upstream: No-Upstream-Ver) (supercite ver: 1.21 upstream: 3.55x3) (strokes ver: 1.1 upstream: No-Upstream-Ver) (speedbar ver: 1.3 upstream: 1.0pre4) (sounds-wav ver: 1.12 upstream: No-Upstream-Ver) (sounds-au ver: 1.12 upstream: No-Upstream-Ver) (sml-mode ver: 0.12 upstream: 3.9.5) (slider ver: 1.16 upstream: 0.3x1) (sieve ver: 1.18 upstream: No-Upstream-Ver) (sh-script ver: 1.24 upstream: 2.0f) (sgml ver: 1.11 upstream: No-Upstream-Ver) (semantic ver: 1.21 upstream: 2.0pre4) (scheme ver: 1.18 upstream: No-Upstream-Ver) (sasl ver: 1.16 upstream: 1.14.4) (ruby-modes ver: 1.05 upstream: 1.8.7) (rmail ver: 1.14 upstream: No-Upstream-Ver) (riece ver: 1.23 upstream: 3.1.2) (reftex ver: 1.34 upstream: 4.21) (re-builder ver: 1.05 upstream: 1.20) (python-modes ver: 1.14 upstream: 5.0.0) (psgml-dtds ver: 1.03 upstream: No-Upstream-Ver) (psgml ver: 1.45 upstream: 1.3.2) (ps-print ver: 1.12 upstream: 6.5.6) (prog-modes ver: 2.27 upstream: No-Upstream-Ver) (pgg ver: 1.08 upstream: 0.1) (perl-modes ver: 1.14 upstream: No-Upstream-Ver) (pcomplete ver: 1.06 upstream: 1.1.6) (pcl-cvs ver: 1.7 upstream: R-2_9_9) (pc ver: 1.28 upstream: No-Upstream-Ver) (os-utils ver: 1.41 upstream: No-Upstream-Ver) (oo-browser ver: 1.05 upstream: 4.08) (ocaml ver: 0.06 upstream: 3.06) (net-utils ver: 1.57 upstream: N/A) (mmm-mode ver: 1.06 upstream: 0.4.8) (misc-games ver: 1.22 upstream: No-Upstream-Ver) (mine ver: 1.16 upstream: 1.9) (mh-e ver: 1.33 upstream: 7.4.2) (mew ver: 1.19 upstream: 1.94.2) (mailcrypt ver: 2.14 upstream: 3.5.8) (mail-lib ver: 1.8 upstream: No-Upstream-Ver) (liece ver: 1.16 upstream: 1.4.9) (jde ver: 1.52 upstream: 2.3.5.1) (ispell ver: 1.32 upstream: 3.6) (ilisp ver: 1.36 upstream: 5.12.0) (igrep ver: 1.16 upstream: 2.111) (idlwave ver: 1.32 upstream: 5.1) (ibuffer ver: 1.1 upstream: No-Upstream-Ver) (hyperbole ver: 1.18 upstream: 5.0.3) (hm--html-menus ver: 1.24 upstream: 5.9) (haskell-mode ver: 1.11 upstream: 2.1) (guided-tour ver: 0.52 upstream: No-Upstream-Ver) (gnus ver: 1.95 upstream: 5.10.10) (gnats ver: 1.17 upstream: 3.101) (general-docs ver: 1.06 upstream: No-Upstream-Ver) (games ver: 1.21 upstream: 2.00) (fsf-compat ver: 1.19 upstream: No-Upstream-Ver) (frame-icon ver: 1.11 upstream: No-Upstream-Ver) (fortran-modes ver: 1.05 upstream: No-Upstream-Ver) (forms ver: 1.15 upstream: 2.37) (footnote ver: 1.16 upstream: 0.18x) (eudc ver: 1.41 upstream: 1.32) (eterm ver: 1.18 upstream: No-Upstream-Ver) (ess ver: 1.16 upstream: 5.2.7) (eshell ver: 1.18 upstream: 0fc80a3f6bb3bb59f42e9ff83cc8b89bf90fe658) (escreen ver: 1.01 upstream: 1.16) (erc ver: 0.23 upstream: Version 5.1.2 Revision: 1.796.2.6) (emerge ver: 1.11 upstream: No-Upstream-Ver) (elib ver: 1.13 upstream: 1.0) (eieio ver: 1.07 upstream: 1.0pre4) (efs ver: 1.34 upstream: 1.24) (edt ver: 1.14 upstream: No-Upstream-Ver) (edit-utils ver: 2.48 upstream: No-Upstream-Ver) (ediff ver: 1.81 upstream: 2.75) (edebug ver: 1.22 upstream: No-Upstream-Ver) (ede ver: 1.04 upstream: 1.0pre4) (ecrypto ver: 0.21 upstream: 2.0) (ecb ver: 1.22 upstream: 2.31) (easypg ver: 1.03 upstream: 0.0.16) (docbookide ver: 0.08 upstream: 0.1) (dired ver: 1.2 upstream: 7.17) (dictionary ver: 1.16 upstream: 1.8) (debug ver: 1.18 upstream: No-Upstream-Ver) (crisp ver: 1.15 upstream: 1.34) (cookie ver: 1.15 upstream: No-Upstream-Ver) (cogre ver: 1.02 upstream: 0.5) (clearcase ver: 1.1 upstream: /main/laptop/165) (cedet-common ver: 1.01 upstream: 1.0pre4) (cc-mode ver: 1.58 upstream: 5.32.2) (calendar ver: 1.38 upstream: No-Upstream-Ver) (calc ver: 1.26 upstream: 2.02fX3) (c-support ver: 1.22 upstream: No-Upstream-Ver) (build ver: 1.15 upstream: 2.02) (bbdb ver: 1.32 upstream: 2.35) (auctex ver: 1.51 upstream: 11.84) (apel ver: 1.34 upstream: 10.7) (ada ver: 1.14 upstream: 2.27) (Sun ver: 1.17 upstream: No-Upstream-Ver) (skk ver: 1.24 upstream: 10.62a) (mule-ucs ver: 1.18 upstream: 0.84) (mule-base ver: 1.56 upstream: No-Upstream-Ver) (lookup ver: 1.15 upstream: 1.0) (locale ver: 1.28 upstream: No-Upstream-Ver) (leim ver: 1.33 upstream: No-Upstream-Ver) (latin-unity ver: 1.2 upstream: 1.20) (latin-euro-standards ver: 1.09 upstream: 1.09) (egg-its ver: 1.27 upstream: No-Upstream-Ver) (edict ver: 1.17 upstream: 0.9.9) Installed Modules: ----------------- Features: -------- (xemacsbug shadow gnus-draft tramp-smb tramp-vc tramp trampver nnfolder nnagent nnml cedet-edebug cl-specs edebug vc-rcs ediff-merg ediff-diff ediff-wind ediff-tbar ediff-help ediff-util ediff-mult ediff-init ediff gnus-fun latin-unity-tables latin-euro-standards latin-euro-latin10 latin-euro-latin9 latin-euro-latin8 latin-euro-latin7 latin-unity-vars latin-unity diff-mode view-less view hyper-apropos w3-style w3-hot url-cache url-file url-dired url-handlers w3-xemac w3-xemacs w3-toolbar xbm-button xpm-button w3-forms images url-auth w3 w3-menu cus-edit cus-load w3-emulate w3-parse w3-fast-parse xml w3-display w3-mouse w3-imap url url-proxy url-privacy url-expand url-methods url-history url-cookie url-domsuf w3-widget url-util w3-vars w3-keymap w3-cus url-parse url-vars css font w3-cfg w3-compat footnote supercite regi vc-git shell flow-fill sort gnus-cite smiley annotations mail-extr gnus-async gnus-bcklg gnus-ml disp-table timezone parse-time nndraft nnmh efs-cu gnus-agent gnus-srvr gnus-score score-mode nnvirtual gnus-msg gnus-art mm-uu mml2015 pgg password pgg-parse pgg-def mm-view gnus-sum gnus-group gnus-undo nntp nnoo nnmail mail-source gnus-cache gnus-start gnus-spec gnus-int gnus-range message mml mml-sec mml-smime smime dig mm-decode mm-bodies mm-encode mailcap lpr mail-parse rfc2231 rfc2047 rfc2045 qp ietf-drums mail-abbrevs sendmail rfc822 gmm-utils mailheader canlock sha1 executable hex-util gnus-win gnus gnus-ems gnus-xmas messagexmas nnheader nnheaderxm gnus-util netrc time-date mail-utils mm-util mail-prsvr wid-edit timer-funcs eldoc guided-tour lazy-lock lazy-shot paren blink-paren gnuserv git log-edit pcl-cvs-util cvs-compat dired-faces dired-xemacs dired add-log ewoc mwheel scroll-in-place slime-fancy slime-fontifying-fu slime-package-fu slime-references slime-scratch slime-presentations slime-fuzzy slime-fancy-inspector slime-c-p-c slime-editing-commands slime-autodoc slime-parse slime-repl slime byte-optimize bytecomp byte-compile edmacro overlay timer comint hyperspec browse-url slime-autoloads vc ring vc-hooks vc-xemacs whitespace cc-styles cc-align cc-engine cc-vars google-c-style cc-defs regexp-opt erc-spelling flyspell ispell erc-goodies erc erc-backend erc-menu erc-compat format-spec thingatpt pp font-lock cus-face advice advice-preload uniquify filladapt zenirc-autoloads xwem-autoloads xslt-process-autoloads xslide-autoloads xlib-autoloads xetla-autoloads xemacs-devel-autoloads xemacs-base-autoloads x-symbol-autoloads w3-autoloads vm-autoloads viper-autoloads view-process-autoloads vhdl-autoloads vc-cc-autoloads vc-autoloads tramp-autoloads tpu-autoloads tooltalk-autoloads tm-autoloads time-autoloads textools-autoloads text-modes-autoloads texinfo-autoloads supercite-autoloads strokes-autoloads speedbar-autoloads sounds-wav-autoloads sounds-au-autoloads sml-mode-autoloads slider-autoloads sieve-autoloads sh-script-autoloads sgml-autoloads semantic-autoloads scheme-autoloads sasl-autoloads ruby-modes-autoloads rmail-autoloads riece-autoloads reftex-autoloads re-builder-autoloads python-modes-autoloads psgml-dtds-autoloads psgml-autoloads ps-print-autoloads prog-modes-autoloads pgg-autoloads perl-modes-autoloads pcomplete-autoloads pcl-cvs-autoloads pc-autoloads os-utils-autoloads oo-browser-autoloads ocaml-autoloads net-utils-autoloads mmm-mode-autoloads misc-games-autoloads mine-autoloads mh-e-autoloads mew-autoloads mailcrypt-autoloads mail-lib-autoloads liece-autoloads jde-autoloads ispell-autoloads ilisp-autoloads igrep-autoloads idlwave-autoloads ibuffer-autoloads hyperbole-autoloads hm--html-menus-autoloads haskell-mode-autoloads guided-tour-autoloads gnus-autoloads gnats-autoloads general-docs-autoloads games-autoloads fsf-compat-autoloads frame-icon-autoloads fortran-modes-autoloads forms-autoloads footnote-autoloads eudc-autoloads eterm-autoloads ess-autoloads eshell-autoloads escreen-autoloads erc-autoloads emerge-autoloads elib-autoloads eieio-autoloads efs-autoloads edt-autoloads edit-utils-autoloads ediff-autoloads edebug-autoloads ede-autoloads ecrypto-autoloads ecb-autoloads easypg-autoloads docbookide-autoloads dired-autoloads dictionary-autoloads debug-autoloads crisp-autoloads cookie-autoloads cogre-autoloads clearcase-autoloads cedet-common-autoloads cc-mode-autoloads calendar-autoloads calc-autoloads c-support-autoloads build-autoloads bbdb-autoloads tex-site auctex-autoloads apel-autoloads ada-autoloads Sun-autoloads skk-autoloads mule-ucs-autoloads mule-base-autoloads lookup-autoloads locale-autoloads leim-autoloads latin-unity-autoloads latin-euro-standards-autoloads egg-its-autoloads edict-autoloads modules-autoloads mule-autoloads auto-autoloads auto-show fontl-hooks canna-leim tibetan thai slovenian czech romanian lao devanagari indian cyrillic code-cmds gutter-items menubar-items x-menubar mode-motion mouse behavior itimer auto-save lisp-mode easymenu easy-mmode iso8859-1 page buff-menu lib-complete loadhist cus-file derived newcomment rsz-minibuf env text-props fontconfig frame obsolete packages cus-start widget custom cl-extra cl backquote unicode font-mgr lucid-scrollbars cut-buffer xft-fonts lucid-menubars athena-dialogs x c-balloon-help tty-frames tty toolbar native-sound alsa-sound scrollbar unix-processes multicast network-streams subprocesses modules menu-accelerator-support menubar md5 xemacs xim mule gutter png jpeg xpm xbm lisp-float-type file-coding linux dialog devices debug-xemacs window-system base64) Recent keystrokes: ----------------- e SPC t h i s SPC l i n e . SPC SPC T h i s SPC i n s t a n t l y SPC c r a s h e s SPC f o r SPC m e . RET RET R a y RET C-p C-p C-n C-n C-SPC C-p C-p C-p C-p C-p C-p C-p C-p M-w M-x b u TAB BS BS x e TAB m a b s BS BS c s - b TAB M-BS M-BS r e TAB p o r t TAB b TAB BS x TAB RET Recent messages (most recent first): ----------------------------------- Fontifying *mail to XEmacs Beta*... done. Fontifying *mail to XEmacs Beta*... Loading xemacsbug...done Loading xemacsbug... Making completion list... Making completion list... Making completion list... Fontifying *posting on gmane.emacs.xemacs.beta*... done. Fontifying *posting on gmane.emacs.xemacs.beta*... No more unread articles Generating summary...done Generating summary... Fetching headers for gmane.emacs.xemacs.beta...done Fetching headers for gmane.emacs.xemacs.beta... Opening nntp server on news.gmane.org...done Opening nntp server on news.gmane.org... Retrieving newsgroup: gmane.emacs.xemacs.beta... 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