[Bug: 21.4.17] Assertion failure in redisplay-output.c

================================================================ Dear Bug Team! I was using xemacs as normal, with several shell buffers open and several text files. The process had been running for a couple of weeks. It suddenly crashed with Fatal error: assertion failed, file redisplay-output.c, line 1595, db->xpos >= 0 && db->ypos >= 0 Fatal error (6). Your files have been auto-saved. Use `M-x recover-session' to recover them. Your version of XEmacs was distributed with a PROBLEMS file that may describe your crash, and with luck a workaround. Please check it first, but do report the crash anyway. Please report this bug by invoking M-x report-emacs-bug, or by selecting `Send Bug Report' from the Help menu. If necessary, send ordinary email to `crashes(a)xemacs.org&#39;. *MAKE SURE* to include the XEmacs configuration from M-x describe-installation, or equivalently the file Installation in the top of the build tree. *Please* try *hard* to obtain a C stack backtrace; without it, we are unlikely to be able to analyze the problem. Locate the core file produced as a result of this crash (often called `core' or `core.<process-id>', and located in the directory in which you started XEmacs or your home directory), and type gdb /u/avised/bin/linux/xemacs core then type `where' at the debugger prompt. No GDB on your system? You may have DBX, or XDB, or SDB. (Ask your system administrator if you need help.) If no core file was produced, enable them (often with `ulimit -c unlimited' in case of future recurrance of the crash. Lisp backtrace follows: next-command-event() byte-code("..." [goal-column unread-command-events start-point last first mess age "<<< Press Return to bury the buffer list >>>" next-command-event ?\ nil th row electric-buffer-menu-select 2 -1 0 Electric-command-loop t electric-buffer-m enu-looper] 8) # (catch electric-buffer-menu-select ...) # (unwind-protect ...) byte-code("..." [select buffer ((list-buffers files-only)) window-buffer Elect ric-pop-up-window "*Buffer List*" ((byte-code qÁ !ÃÄ!" ... 2)) Electric-buffer-m enu-mode electric-buffer-menu-select (byte-code "ÅÆ!Ç CÈa«ÉÊËÉ\"`ebÌy`dbÍy`Î W¬ \n V« ª\nbÏËÉÐÑ B%," [goal-column unread-command-events start-point last first message "<<< Pres s Return to bury the buffer list >>>" next-command-event ?\ nil throw electric- buffer-menu-select 2 -1 0 Electric-command-loop t electric-buffer-menu-looper] 8 )] 3) # (unwind-protect ...) # bind (select buffer files-only) #<compiled-function (&optional files-only) "...(49)" [select buffer opoint nil (...) point-marker Buffer-menu-execute search-forward "\n>" t Buffer-menu-selec t switch-to-buffer Buffer-menu-buffer] 4 ("/u/avised/lib/xemacs/xemacs-packages/ lisp/xemacs-base/ebuff-menu.elc" . 757) (list (if current-prefix-arg t nil))>(ni l) call-interactively(electric-buffer-list) # (condition-case ... . error) # (catch top-level ...) Sorry, no core file was written despite 'ulimit -c unlimited'; I'll take this up with my sysadmin. But I hope the Lisp backtrace and line number in the C source code will help you investigate. If you don't want to make a big change to the stable xemacs release perhaps the assertion could just be commented out, since crashing the whole xemacs session because of this assertion failure is a bit drastic and the assertion is probably doing more harm than good to xemacs's stability. ================================================================ System Info to help track down your bug: --------------------------------------- uname -a: Linux ftidevlx1.london.kbcfp.com 2.4.21-27.0.4.ELhugemem #1 SMP Sat Apr 16 18:22:53 EDT 2005 i686 unknown unknown GNU/Linux ./configure '--prefix=/u/avised' XEmacs 21.4.17 "Jumbo Shrimp" configured for `i686-pc-linux'. Compilation / Installation: Source code location: /u/avised/inst/xemacs-21.4.17 Installation prefix: /u/avised Operating system description file: `s/linux.h' Machine description file: `m/intel386.h' Compiler: gcc -g -O3 -Wall -Wno-switch -Winline -Wmissing-prototypes -Wsign-compare -fno-strict-aliasing -Wshadow Compiler version: Compiler specs file: Relocating allocator for buffers: no GNU version of malloc: yes - Using Doug Lea's new malloc from the GNU C Library. libc: glibc-2.3.2-95.30 Window System: Compiling in support for the X window system: - X Windows headers location: /usr/X11R6/include - X Windows libraries location: /usr/X11R6/lib - Handling WM_COMMAND properly. Compiling in support for the Athena widget set: - Athena headers location: X11/Xaw - Athena library to link: Xaw Using Lucid menubars. Using Lucid scrollbars. Using Athena dialog boxes. TTY: Compiling in support for ncurses. Compiling in support for GPM (General Purpose Mouse). Images: Compiling in support for GIF images (builtin). Compiling in support for XPM images. Compiling in support for PNG images. Compiling in support for JPEG images. Compiling in support for TIFF images. Sound: Compiling in support for sound (native). Databases: Compiling in support for Berkeley database. Compiling in support for LDAP. Compiling in support for PostgreSQL. - Using PostgreSQL header file: libpq-fe.h - Using PostgreSQL V7 bindings. Internationalization: Mail: Compiling in support for "dot-locking" mail spool file locking method. Other Features: Inhibiting IPv6 canonicalization at startup. Compiling in support for dynamic shared object modules. Using the new portable dumper. Load-Path Lisp Shadows: ---------------------- (~/lib/emacs/cperl-mode /u/avised/lib/xemacs/xemacs-packages/lisp/perl-modes/cperl-mode ~/lib/emacs/perl-mode /u/avised/lib/xemacs/xemacs-packages/lisp/perl-modes/perl-mode /u/avised/lib/xemacs/xemacs-packages/lisp/build/build-report /u/avised/lib/xemacs-21.4.17/lisp/build-report) Installed XEmacs Packages: ------------------------- (zenirc ver: 1.15 upstream: 2.112) (xwem ver: 1.21 upstream: lg(a)xwem.org--2005/xwem--main--2.1--versionfix-1) (xslt-process ver: 1.11 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: 1.0 upstream: steve(a)eicq.org--2005/xetla--main--1.0--version-0) (xemacs-devel ver: 1.7 upstream: No-Upstream-Ver) (xemacs-base ver: 1.97 upstream: No-Upstream-Ver) (x-symbol ver: 1.1 upstream: 4.5.1) (w3 ver: 1.3 upstream: 4.0pre47) (vm ver: 7.19 upstream: 7.17) (viper ver: 1.38 upstream: 3.09) (view-process ver: 1.13 upstream: 2.4) (vhdl 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upstream: No-Upstream-Ver) Installed Modules: ----------------- Features: -------- (mail-abbrevs xemacsbug shadow sendmail rfc822 mwheel ansi-display jka-compr env tramp-smb tramp regexp-opt advice advice-preload shell comint ring password format-spec timer trampver gnuserv vc-hooks time cperl-mode blink-cursor font-lock cus-face 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 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dialog devices window-system base64) Recent keystrokes: ----------------- M-x r e p o l BS r t SPC x e m SPC b SPC RET Recent messages (most recent first): ----------------------------------- Loading xemacsbug...done Loading xemacsbug... Loading mwheel...done Loading mwheel... ~/ ~/datatech_dev/ ~/idev/ ~/development/ ~/ Automatic file (de)compression is now ON. Loading env...done Loading env... Loading regexp-opt...done Loading regexp-opt... Loading password...done Loading password... Loading gnuserv...done Loading gnuserv... Loading vc-hooks...done Loading vc-hooks... ----- This message may contain confidential, proprietary, or legally privileged information. No confidentiality or privilege is waived by any transmission to an unintended recipient. If you are not an intended recipient, please notify the sender and delete this message immediately. Any views expressed in this message are those of the sender, not those of KBC Financial Products or any affiliate thereof. This message does not create any obligation, contractual or otherwise, on the part of any such entity. It is not an offer (or solicitation of an offer) of, or a recommendation to buy or sell, any financial product. 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