fatal error during isearch-forward
Aidan Kehoe
kehoea at parhasard.net
Sat Dec 8 17:44:30 EST 2007
Thank you for an excellent bug report, Klaus!
In local testing, I can reproduce your bug; and it seems that Stephen’s
patch of http://mid.gmane.org/87hcixwkh4.fsf@uwakimon.sk.tsukuba.ac.jp ,
which he has yet to commit, eliminates it. We’d love confirmation of this
from you; despite Stephen’s ‘do not apply this patch’ in his message, the
change is easy to apply.
Ar an t-ochtú lá de mí na Nollaig, scríobh Klaus Reim:
> Hi!
>
> I encountered a fatal error during an isearch-forward
> within a several 10000 lines buffer.
> Eventually it turned out that "size does not matter":
> I was able to boil the problem down to a mere 3-bytes buffer
> containing the letters "IAI".
> If you place point just before the 'A', and then
> do a "C-s C-w" sequence, xemacs dies from:
>
> Fatal error: assertion failed, file search.c, line 1487,
> (this_pos) > ((Bytebpos) 1) && this_pos <= ((buf)->text->z + 0)
>
> instead of marking the "AI".
> This occurs for example in today's cvs-head.
> To be more precise, the assertion triggers for
> CVS date-tag "-D 2007-08-27" and later, while it does not for "-D 2007-08-26"
> Among the few files changed in that interval, it turned out
> that revision 1.9 of "lisp/mule/latin.el" causes the problem
> (or maybe makes an older problem evident).
> I built my version of xemacs --with-mule.
>
> Find below my system info (saw the same effect on
> a redhat system as well, with the same build configuration).
>
> regards,
> Klaus
>
>
> ================================================================
>
> System Info to help track down your bug:
> ---------------------------------------
>
> uname -a: Linux linux 2.6.11.4-21.17-default #1 Fri Apr 6 08:42:34 UTC 2007 i686 athlon i386 GNU/Linux
>
> configure '--with-package-path=/home/klr/xemacs/lib/xemacs/xemacs-packages:/home/klr/xemacs/lib/xemacs/mule-packages' '--infodir=/home/klr/xemacs/xemacs-21.5/info' '--with-infopath=/home/klr/xemacs/xemacs-packages:/home/klr/xemacs/mule-packages' '--with-athena=3d' '--with-xpm' '--with-png' '--with-jpeg' '--with-tiff' '--with-gif' '--with-mule' '--with-gpm=yes' '--with-sound=native' '--with-pop' '--with-clash-detection' '--with-canna=yes' '--with-wnn=yes' '--with-xim=xlib' '--with-database=no' '--with-postgresql=no' '--with-ldap=no' '--with-hesiod=no' '--with-widgets=athena' '--with-menubars=lucid' '--with-scrollbars=lucid' '--with-dialogs=athena' '--with-msw=no' '--with-optimization' '--with-cflags-debugging='
>
>
> XEmacs 21.5-b28 "fuki" (+CVS-20071118) configured for `i686-pc-linux'.
>
> Compilation Environment and Installation Defaults:
> Source code location: /home/klr/xemacs/xemacs-21.5
> Installation prefix: /usr/local
> Operating system description file: `s/linux.h'
> Machine description file: `m/intel386.h'
> Compiler version: gcc (GCC) 3.3.5 20050117 (prerelease) (SUSE Linux)
> - GCC specs file: /usr/lib/gcc-lib/i586-suse-linux/3.3.5/specs
> - Compiler command: gcc -Wall -Wno-switch -Wundef -Wsign-compare -Wno-char-subscripts -Wpacked -Wunused-parameter -O3
> libc version:
> Relocating allocator for buffers: no
> GNU version of malloc: yes
> - Using Doug Lea's new malloc from the GNU C Library.
>
> Window System:
> Compiling in support for the X window system:
> - X Windows headers location: /usr/X11/include
> - X Windows libraries location: /usr/X11/lib
> - Handling WM_COMMAND properly.
> Compiling in support for the Athena widget set:
> - Athena headers location: X11/Xaw3d
> - Athena library to link: Xaw3d
> Using Lucid menubars.
> Using Lucid scrollbars.
> Using Athena dialog boxes.
> Using Athena native widgets.
>
> TTY:
> 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).
> Compiling in support for ALSA (Advanced Linux Sound Architecture).
>
> Databases:
>
> 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 POP mail retrieval.
> 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:
> ----------------------
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> /home/klr/xemacs/xemacs-21.5/lisp/mule/ethio-util
> /home/klr/xemacs/lib/xemacs/mule-packages/lisp/mule-base/china-util
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> /home/klr/xemacs/lib/xemacs/mule-packages/lisp/mule-base/japan-util
> /home/klr/xemacs/xemacs-21.5/lisp/mule/japan-util
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> /home/klr/xemacs/lib/xemacs/xemacs-packages/lisp/xemacs-base/easy-mmode
> /home/klr/xemacs/xemacs-21.5/lisp/easy-mmode
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> /home/klr/xemacs/xemacs-21.5/lisp/regexp-opt /home/klr/lisp/font-lock
> /home/klr/xemacs/xemacs-21.5/lisp/font-lock)
>
> 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 : C
>
> Lisp locale settings:
>
> current-language-environment => "English"
> default-buffer-file-coding-system => iso-8859-1
> default-process-coding-system => (undecided . iso-8859-1)
> (current-locale) => "C"
> keyboard-coding-system => iso-8859-1
> terminal-coding-system => iso-8859-1
> (coding-priority-list) =>
> (no-conversion utf-16-little-endian-bom utf-16-bom utf-8-bom iso-7
> utf-8 iso-8-1 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 iso-8859-1
> 'file-name is aliased to native
> 'mswindows-multibyte-system-default is not a coding system alias
>
>
> Installed XEmacs Packages:
> -------------------------
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> (apel ver: 1.33 upstream: 10.6)
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>
>
>
> Installed Modules:
> -----------------
>
>
> Features:
> --------
>
> (mail-abbrevs xemacsbug shadow sendmail rfc822 rect cc-mode cc-fonts
> cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs
> diff-mode tramp-smb tramp regexp-opt executable advice advice-preload
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> dired-faces dired-xemacs dired idm-mode idm-class-attribute-alist
> idm-parser idm-scanner idm-strings idm-util idm-faces cus-face
> disp-table skk-autoloads mule-ucs-autoloads mule-base-autoloads
> lookup-autoloads leim-autoloads latin-unity-autoloads
> egg-its-autoloads edict-autoloads zenirc-autoloads xwem-autoloads
> xslt-process-autoloads xslide-autoloads xlib-autoloads xetla-autoloads
> xemacs-devel-autoloads xemacs-base-autoloads x-symbol-autoloads
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> 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
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> igrep-autoloads idlwave-autoloads ibuffer-autoloads
> hyperbole-autoloads hm--html-menus-autoloads haskell-mode-autoloads
> guided-tour-autoloads gnus-autoloads gnats-autoloads games-autoloads
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> dired-autoloads dictionary-autoloads debug-autoloads crisp-autoloads
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¿Dónde estará ahora mi sobrino Yoghurtu Nghé, que tuvo que huir
precipitadamente de la aldea por culpa de la escasez de rinocerontes?
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