[Bug: 21.5-b18] Crash while "Enhancing Image..." in w3.

================================================================ Dear Bug Team! While trying to track down a problem a poster to comp.emacs.xemacs was seeing with w3, I clicked on Tools -> Internet -> Browse The Web. W3 loaded up what I imagine is its default home page, showed some text, and printed to the minibuffer that it was "Enhancing Image ...". Then it dumped huge gobs of information to standard error, executed an illegal operation, dumped core, and quit. I tried to extract the more relevant pieces from the C and Lisp backtraces, but VM broke, and I imagine either you'll see a broken predecessor to this message on xemacs-beta, or it'll be spam-trapped. I'm attaching compressed versions of both at the end of this mail. The C backtrace involved infinite mutual recursion in print_cons and print_internal; the Lisp backtrace involved the process-send-region that's called as part of image-normalize. Bye, Aidan ================================================================ System Info to help track down your bug: --------------------------------------- uname -a: NetBSD derrick 2.0 NetBSD 2.0 (GENERIC) #0: Mon Jan 24 15:00:02 GMT 2005 aidan＠derrick:/usr/src/sys/arch/i386/compile/GENERIC i386 ./configure '--with-mule' '--pdump' XEmacs 21.5-b18 "chestnut" (+CVS-20050208) configured for `i386-unknown-netbsdelf2.0'. Compilation Environment and Installation Defaults: Source code location: /Sources/xemacs-21.5 Installation prefix: /usr/local Runtime library search path: /usr/X11R6/lib:/usr/bin/../libexec Operating system description file: `s/netbsd.h' Machine description file: `m/intel386.h' Compiler version: gcc (GCC) 3.3.3 (NetBSD nb3 20040520) - GCC specs file: specs. - Compiler command: gcc -Wall -Wno-switch -Wundef -Wsign-compare -Wno-char-subscripts -Wpacked -Wpointer-arith -Wunused-parameter -g libc version: Relocating allocator for buffers: yes GNU version of malloc: yes 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. Using Lucid menubars. Using Lucid scrollbars. TTY: Images: Compiling in support for GIF images (builtin). Compiling in support for XPM images. WARNING: ----------------------------------------------------------- WARNING: Compiling without PNG image support. WARNING: You should strongly consider installing the PNG libraries. WARNING: Otherwise certain images and glyphs may not display. WARNING: (a copy may be found in ftp://ftp.xemacs.org/pub/xemacs/aux) WARNING: ----------------------------------------------------------- Sound: Compiling in support for sound (native). Databases: Compiling in support for Berkeley database. Compiling in support for DBM. 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 "flock" 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. 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: ---------------------- (/home/aidan/emacs-lisp/redo /usr/local/lib/xemacs/xemacs-packages/lisp/edit-utils/redo /home/aidan/emacs-lisp/sendmail /usr/local/lib/xemacs/xemacs-packages/lisp/mail-lib/sendmail /home/aidan/emacs-lisp/mmm-vars /usr/local/lib/xemacs/xemacs-packages/lisp/mmm-mode/mmm-vars /home/aidan/emacs-lisp/mmm-utils /usr/local/lib/xemacs/xemacs-packages/lisp/mmm-mode/mmm-utils /home/aidan/emacs-lisp/mmm-univ /usr/local/lib/xemacs/xemacs-packages/lisp/mmm-mode/mmm-univ /home/aidan/emacs-lisp/mmm-sample /usr/local/lib/xemacs/xemacs-packages/lisp/mmm-mode/mmm-sample /home/aidan/emacs-lisp/mmm-rpm /usr/local/lib/xemacs/xemacs-packages/lisp/mmm-mode/mmm-rpm /home/aidan/emacs-lisp/mmm-region /usr/local/lib/xemacs/xemacs-packages/lisp/mmm-mode/mmm-region /home/aidan/emacs-lisp/mmm-mode /usr/local/lib/xemacs/xemacs-packages/lisp/mmm-mode/mmm-mode /home/aidan/emacs-lisp/mmm-mason /usr/local/lib/xemacs/xemacs-packages/lisp/mmm-mode/mmm-mason /home/aidan/emacs-lisp/mmm-compat /usr/local/lib/xemacs/xemacs-packages/lisp/mmm-mode/mmm-compat /home/aidan/emacs-lisp/mmm-cmds /usr/local/lib/xemacs/xemacs-packages/lisp/mmm-mode/mmm-cmds /home/aidan/emacs-lisp/mmm-class /usr/local/lib/xemacs/xemacs-packages/lisp/mmm-mode/mmm-class /home/aidan/emacs-lisp/mmm-auto /usr/local/lib/xemacs/xemacs-packages/lisp/mmm-mode/mmm-auto /home/aidan/emacs-lisp/vm-mime /usr/local/lib/xemacs/xemacs-packages/lisp/vm/vm-mime /usr/local/lib/xemacs/mule-packages/lisp/mule-base/china-util /usr/local/lib/xemacs-21.5-b18/lisp/mule/china-util /usr/local/lib/xemacs/mule-packages/lisp/mule-base/cyril-util /usr/local/lib/xemacs-21.5-b18/lisp/mule/cyril-util /usr/local/lib/xemacs/mule-packages/lisp/mule-base/ethio-util /usr/local/lib/xemacs-21.5-b18/lisp/mule/ethio-util /usr/local/lib/xemacs/mule-packages/lisp/mule-base/japan-util /usr/local/lib/xemacs-21.5-b18/lisp/mule/japan-util /usr/local/lib/xemacs/mule-packages/lisp/mule-base/korea-util /usr/local/lib/xemacs-21.5-b18/lisp/mule/korea-util /usr/local/lib/xemacs/mule-packages/lisp/mule-base/viet-util /usr/local/lib/xemacs-21.5-b18/lisp/mule/viet-util /usr/local/lib/xemacs/xemacs-packages/lisp/xemacs-base/regexp-opt /usr/local/lib/xemacs-21.5-b18/lisp/regexp-opt /usr/local/lib/xemacs/xemacs-packages/lisp/xemacs-base/easy-mmode /usr/local/lib/xemacs-21.5-b18/lisp/easy-mmode /usr/local/lib/xemacs/xemacs-packages/lisp/build/build-report /usr/local/lib/xemacs-21.5-b18/lisp/build-report /usr/local/lib/xemacs/mule-packages/lisp/mule-ucs/unicode /usr/local/lib/xemacs-21.5-b18/lisp/unicode) -- "Ah come on now Ted, a Volkswagen with a mind of its own, driving all over the place and going mad, if that's not scary I don't know what is."