9:46 p.m.
Hello,
with both b23 and b24 I can a easily trigger a crash in cperl-mode
with font-locking enabled (it doesn't crash without font-lock). Here's
the backtrace:
Fatal error: assertion failed, file marker.c, line 345, RECORD_TYPEP (obj, lreco
rd_type_marker)
Program received signal SIGABRT, Aborted.
0xb7b9583b in raise () from /lib/tls/libc.so.6
(gdb) bt
#0 0xb7b9583b in raise () from /lib/tls/libc.so.6
#1 0xb7b96fa2 in abort () from /lib/tls/libc.so.6
#2 0x080e4723 in really_abort () at emacs.c:4659
#3 0x080e2304 in assert_failed (file=0x82fb640 "marker.c", line=345,
expr=0x82e9f40 "RECORD_TYPEP (obj, lrecord_type_marker)") at emacs.c:3982
#4 0x08112617 in error_check_marker (obj=146804672,
file=0x82fb640 "marker.c", line=345) at lisp.h:2919
#5 0x081d2a88 in byte_marker_position (marker=146804672) at marker.c:345
#6 0x0825a0c8 in signal_syntax_table_extent_changed (extent=0x8ffc524)
at syntax.c:412
#7 0x08121913 in signal_single_extent_changed (extent=0x8ffc524,
property=146804672, unused_old_start=2, unused_old_end=2) at extents.c:1925
#8 0x08121a4b in signal_extent_changed (extent=0x8ffc524, property=146804672,
old_start=2, old_end=2, descendants_too=0) at extents.c:1966
#9 0x08121fe1 in extent_detach (extent=0x8ffc524) at extents.c:2126
#10 0x08123022 in adjust_extents_for_deletion (object=140514704, from=1, to=2,
gapsize=2001, numdel=1, movegapsize=2001) at extents.c:2779
#11 0x081b4cee in buffer_delete_range (buf=0x8601590, from=1, to=2, flags=0)
at insdel.c:1500
#12 0x080b1402 in Fdelete_char (count=-1, killp=146804672) at cmds.c:283
#13 0x080b14e3 in Fdelete_backward_char (count=3, killp=146804672)
at cmds.c:319
#14 0x080ec91d in Ffuncall (nargs=3, args=0xbfb64bd4) at eval.c:3890
---Type <return> to continue, or q <return> to quit---
#15 0x0809ec9f in execute_optimized_program (
program=0x8f72138
"\n\034\212\fÅV«'o¬$`SfÆa«\024i\033Çu\210\viZ\023ÈÉ\v\"\21
0ÊË!\210)Çu\210\fS\211\024ª×*Ì\n\t\"\210\b\vl?\a\212ÈÉ\n\")\207",
stack_depth=4, constants_data=0x8ca2404) at bytecode.c:862
#16 0x080f491d in funcall_compiled_function (fun=148302680, nargs=1,
args=0xbfb64e28) at eval.c:3492
#17 0x080ecc2c in Ffuncall (nargs=2, args=0xbfb64e24) at eval.c:3929
#18 0x0809ec9f in execute_optimized_program (
program=0x8673f20 "\v«!\fÆs«\034hÇs«\027È\035\fÉa«\005ÊÈw\210`\025ÊÈx\210`\r
|)\207\fËa«\003Ì\021\v«\034\fÌa«\027hÍs«\022È\035ÊÈw\210`\025ÊÈx\210`\r|)\207\b«
\005Î\n!\207Ï\n!\207", stack_depth=2, constants_data=0x891eea8)
at bytecode.c:862
#19 0x080f491d in funcall_compiled_function (fun=150585476, nargs=1,
args=0xbfb6506c) at eval.c:3492
#20 0x080ecc2c in Ffuncall (nargs=2, args=0xbfb65068) at eval.c:3929
#21 0x080a647c in Fcall_interactively (function=150510544,
record_flag=146804672, keys=146804672) at callint.c:994
#22 0x080eabad in Fcommand_execute (cmd=150510544, record_flag=146804672,
keys=146804672) at eval.c:3116
#23 0x0810731a in execute_command_event (command_builder=0x8dc2c60,
event=144573692) at event-stream.c:4286
#24 0x08107d54 in Fdispatch_event (event=144573692) at event-stream.c:4590
#25 0x080b06fe in Fcommand_loop_1 () at cmdloop.c:600
---Type <return> to continue, or q <return> to quit---
#26 0x080b04cd in command_loop_1 (unused_dummy=146804672) at cmdloop.c:505
#27 0x080e8c8a in condition_case_1 (handlers=146798344,
bfun=0x80b049b <command_loop_1>, barg=146804672,
hfun=0x80b00af <cmd_error>, harg=146804672) at eval.c:1924
#28 0x080b01cb in command_loop_3 () at cmdloop.c:262
#29 0x080b01ed in command_loop_2 (unused_dummy=146804672) at cmdloop.c:275
#30 0x080e8719 in internal_catch (tag=146553304,
func=0x80b01e2 <command_loop_2>, arg=146804672, threw=0x0, thrown_tag=0x0,
backtrace_before_throw=0x0) at eval.c:1530
#31 0x080b0304 in initial_command_loop (load_me=146804672) at cmdloop.c:313
#32 0x080e1054 in xemacs_21_5_b24_i686_pc_linux (argc=1, argv=0xbfb65774,
unused_envp=0x0, restart=0) at emacs.c:2663
#33 0x080e1a35 in main (argc=1, argv=0xbfb65774, unused_envp=0xbfb6577c)
at emacs.c:3107
System Info to help track down your bug:
---------------------------------------
uname -a: Linux bauhaus 2.6.15 #1 Thu Jan 26 01:28:23 CET 2006 i686 GNU/Linux
./configure '--with-mule' '--with-pop'
'--with-mail-locking=flock'
XEmacs 21.5-b24 "dandelion" configured for `i686-pc-linux'.
Compilation Environment and Installation Defaults:
Source code location: /usr/local/src/xemacs/xemacs-21.5.23
Installation prefix: /usr/local
Operating system description file: `s/linux.h'
Machine description file: `m/intel386.h'
Compiler version: gcc (GCC) 3.3.5 (Debian 1:3.3.5-13)
- GCC specs file: /usr/lib/gcc-lib/i486-linux/3.3.5/specs
- Compiler command: gcc -Wall -Wno-switch -Wundef -Wsign-compare
-Wno-char-subscripts -Wpacked -Wunused-parameter -g
libc version: GNU libc 2.3.2.ds1-22 (Debian)
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/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.
Using Athena native widgets.
TTY:
Compiling in support for ncurses.
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 X-Face message headers.
Sound:
Compiling in support for sound (native).
Compiling in support for NAS (network audio system).
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 "flock" mail spool file locking method.
Other Features:
Inhibiting IPv6 canonicalization at startup.
Compiling in support for dynamic shared object modules.
Using the new GC algorithms.
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 allocator.
WARNING: ---------------------------------------------------------
WARNING: The new allocator is experimental. It is enabled by
WARNING: default for this release. Use `--disable-mc-alloc' to
WARNING: turn it off.
WARNING: ---------------------------------------------------------
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:
----------------------
Installed XEmacs Packages:
-------------------------
(zenirc ver: 1.09 upstream: regular)
(xslt-process ver: 1.12 upstream: 1.2.1)
(xslide ver: 1.09 upstream: 0.2.2)
(xetla ver: 1.01 upstream: steve(a)eicq.org--2005/xetla--main--1.1--version-0)
(xemacs-devel ver: 1.72 upstream: No-Upstream-Ver)
(xemacs-base ver: 2.01 upstream: No-Upstream-Ver)
(x-symbol ver: 1.1 upstream: 4.5.1)
(w3 ver: 1.18 upstream: regular)
(vm ver: 6.92 upstream: regular)
(viper ver: 1.25 upstream: regular)
(view-process ver: 1.13 upstream: 2.4)
(vc ver: 1.41 upstream: No-Upstream-Ver)
(tramp ver: 1.28 upstream: 2.0.51)
(tooltalk ver: 1.13 upstream: regular)
(tm ver: 1.27 upstream: regular)
(time ver: 1.14 upstream: 1.17)
(textools ver: 1.15 upstream: No-Upstream-Ver)
(text-modes ver: 1.9 upstream: No-Upstream-Ver)
(texinfo ver: 1.3 upstream: No-Upstream-Ver)
(supercite ver: 1.17 upstream: regular)
(strokes ver: 1.08 upstream: regular)
(speedbar ver: 1.28 upstream: 0.14beta4)
(sounds-wav ver: 1.1 upstream: regular)
(sounds-au ver: 1.12 upstream: No-Upstream-Ver)
(slider ver: 1.13 upstream: regular)
(sh-script ver: 1.21 upstream: 2.0f)
(sgml ver: 1.11 upstream: No-Upstream-Ver)
(semantic ver: 1.05 upstream: regular)
(scheme ver: 1.11 upstream: regular)
(reftex ver: 1.34 upstream: 4.21)
(python-modes ver: 1.07 upstream: No-Upstream-Ver)
(psgml-dtds ver: 1.03 upstream: No-Upstream-Ver)
(psgml ver: 1.44 upstream: 1.3.1)
(ps-print-nomule ver: 1.05 upstream: regular)
(ps-print ver: 1.11 upstream: 6.5.6)
(prog-modes ver: 2.06 upstream: No-Upstream-Ver)
(preview ver: 2003.0119 upstream: regular)
(pgg ver: 1.06 upstream: 0.1)
(perl-modes ver: 1.08 upstream: No-Upstream-Ver)
(pcomplete ver: 1.04 upstream: 1.1.6)
(pcl-cvs ver: 1.66 upstream: R-2_9_9)
(pc ver: 1.28 upstream: No-Upstream-Ver)
(os-utils ver: 1.36 upstream: No-Upstream-Ver)
(oo-browser ver: 1.04 upstream: 4.08)
(net-utils ver: 1.48 upstream: N/A)
(mule-ucs ver: 1.14 upstream: 0.84)
(mule-base ver: 1.47 upstream: No-Upstream-Ver)
(misc-games ver: 1.18 upstream: No-Upstream-Ver)
(mine ver: 1.16 upstream: 1.9)
(mailcrypt ver: 2.14 upstream: 3.5.8)
(mail-lib ver: 1.75 upstream: No-Upstream-Ver)
(lookup ver: 1.15 upstream: 1.0)
(locale ver: 1.22 upstream: No-Upstream-Ver)
(leim ver: 1.22 upstream: No-Upstream-Ver)
(latin-unity ver: 1.16 upstream: 1.16)
(jde ver: 1.48 upstream: 2.3.2)
(ispell ver: 1.32 upstream: 3.6)
(ilisp ver: 1.33 upstream: 5.12.0)
(igrep ver: 1.14 upstream: 2.111)
(hm--html-menus ver: 1.23 upstream: 5.9)
(gnus ver: 1.89 upstream: 5.10.7)
(gnats ver: 1.17 upstream: 3.101)
(games ver: 1.17 upstream: 1.04)
(fsf-compat ver: 1.15 upstream: No-Upstream-Ver)
(frame-icon ver: 1.11 upstream: No-Upstream-Ver)
(forms ver: 1.13 upstream: regular)
(footnote ver: 1.16 upstream: 0.18x)
(eudc ver: 1.33 upstream: regular)
(eterm ver: 1.17 upstream: No-Upstream-Ver)
(eshell ver: 1.01 upstream: regular)
(emerge ver: 1.09 upstream: regular)
(elib ver: 1.11 upstream: 1.0)
(eieio ver: 1.01 upstream: regular)
(eicq ver: 1.04 upstream: regular)
(efs ver: 1.33 upstream: 1.23)
(edit-utils ver: 2.32 upstream: No-Upstream-Ver)
(ediff ver: 1.6 upstream: 2.75)
(edebug ver: 1.21 upstream: No-Upstream-Ver)
(ecrypto ver: 0.19 upstream: 2.0)
(docbookide ver: 0.07000000000000001 upstream: 0.1)
(dired ver: 1.1 upstream: regular)
(debug ver: 1.14 upstream: regular)
(cookie ver: 1.13 upstream: regular)
(cc-mode ver: 1.45 upstream: 5.30.10)
(calendar ver: 1.23 upstream: No-Upstream-Ver)
(calc ver: 1.26 upstream: 2.02fX3)
(c-support ver: 1.22 upstream: No-Upstream-Ver)
(build ver: 1.14 upstream: 2.02)
(bbdb ver: 1.29 upstream: 2.34)
(auctex ver: 1.46 upstream: 11.55)
(apel ver: 1.32 upstream: 10.6)
Installed Modules:
-----------------
Features:
--------
(bbdb regexp-opt timezone mailcrypt comint xemacsbug shadow fast-lock
lazy-shot mail-abbrevs sendmail rfc822 ilisp-easy-menu info-look
overlay info ilisp-browse-cltl2 url mm mule-sysdp url-parse url-vars
browse-url appt time cal-tex diary-lib calendar completion autoinsert
german-time advice advice-preload vc ring vc-hooks package-get
package-admin config iswitchb edmacro scroll-in-place paren mic-paren
timer blink-paren gnuserv view-less view default-dir efs-cu efs-x19.15
efs-fnh efs-ovwrt efs-auto dired-faces dired-xemacs dired tex-site
font-lock crypt crypt++ completer gnus gnus-ems gnus-xmas messagexmas
nnheader nnheaderxm gnus-util netrc time-date mail-utils mm-util
mail-prsvr wid-edit cus-face zenirc-autoloads xslt-process-autoloads
xslide-autoloads xetla-autoloads xemacs-devel-autoloads
xemacs-base-autoloads x-symbol-autoloads w3-autoloads vm-autoloads
viper-autoloads view-process-autoloads vc-autoloads tramp-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 slider-autoloads sh-script-autoloads
sgml-autoloads semantic-autoloads scheme-autoloads reftex-autoloads
python-modes-autoloads psgml-dtds-autoloads psgml-autoloads
ps-print-nomule-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
net-utils-autoloads mule-ucs-autoloads mule-base-autoloads
misc-games-autoloads mine-autoloads mailcrypt-autoloads
mail-lib-autoloads lookup-autoloads locale-autoloads leim-autoloads
latin-unity-autoloads jde-autoloads ispell-autoloads ilisp-autoloads
igrep-autoloads hm--html-menus-autoloads gnus-autoloads
gnats-autoloads games-autoloads fsf-compat-autoloads
frame-icon-autoloads forms-autoloads footnote-autoloads eudc-autoloads
eterm-autoloads eshell-autoloads emerge-autoloads elib-autoloads
eieio-autoloads eicq-autoloads efs-autoloads edit-utils-autoloads
ediff-autoloads edebug-autoloads ecrypto-autoloads
docbookide-autoloads dired-autoloads debug-autoloads cookie-autoloads
cc-mode-autoloads calendar-autoloads calc-autoloads
c-support-autoloads build-autoloads bbdb-autoloads auctex-autoloads
apel-autoloads modules-autoloads mule-autoloads auto-autoloads
loadhist rsz-minibuf auto-show fontl-hooks canna-leim tibetan lao
devanagari indian slovenian czech romanian ccl 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
cus-file derived newcomment env text-props fontconfig frame obsolete
cus-start custom widget cl-extra cl cl-19 packages backquote unicode
lucid-scrollbars cut-buffer lucid-menubars athena-dialogs x
c-balloon-help tty-frames tty toolbar nas-sound native-sound scrollbar
unix-processes multicast network-streams subprocesses modules
menu-accelerator-support menubar md5 xemacs xim mule gutter png gif
jpeg xface xpm xbm lisp-float-type file-coding linux dialog devices
window-system base64)
System Info to help track down your bug:
---------------------------------------
uname -a: Linux bauhaus 2.6.15 #1 Thu Jan 26 01:28:23 CET 2006 i686 GNU/Linux
./configure '--with-mule' '--with-pop'
'--with-mail-locking=flock'
XEmacs 21.5-b24 "dandelion" configured for `i686-pc-linux'.
Compilation Environment and Installation Defaults:
Source code location: /usr/local/src/xemacs/xemacs-21.5.23
Installation prefix: /usr/local
Operating system description file: `s/linux.h'
Machine description file: `m/intel386.h'
Compiler version: gcc (GCC) 3.3.5 (Debian 1:3.3.5-13)
- GCC specs file: /usr/lib/gcc-lib/i486-linux/3.3.5/specs
- Compiler command: gcc -Wall -Wno-switch -Wundef -Wsign-compare
-Wno-char-subscripts -Wpacked -Wunused-parameter -g
libc version: GNU libc 2.3.2.ds1-22 (Debian)
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/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.
Using Athena native widgets.
TTY:
Compiling in support for ncurses.
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 X-Face message headers.
Sound:
Compiling in support for sound (native).
Compiling in support for NAS (network audio system).
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 "flock" mail spool file locking method.
Other Features:
Inhibiting IPv6 canonicalization at startup.
Compiling in support for dynamic shared object modules.
Using the new GC algorithms.
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 allocator.
WARNING: ---------------------------------------------------------
WARNING: The new allocator is experimental. It is enabled by
WARNING: default for this release. Use `--disable-mc-alloc' to
WARNING: turn it off.
WARNING: ---------------------------------------------------------
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:
----------------------
(/usr/local/lib/emacs/site-lisp/modes/slime/hyperspec
/usr/local/lib/emacs/site-lisp/utils/hyperspec
/opt/packages/acl4.3/home/emacs/fi/makeman
/usr/local/lib/xemacs/site-lisp/fi/makeman
/opt/packages/acl4.3/home/emacs/fi/Doc
/usr/local/lib/xemacs/site-lisp/fi/Doc
/opt/packages/acl4.3/home/emacs/fi/fi-xemacs
/usr/local/lib/xemacs/site-lisp/fi/fi-xemacs
/opt/packages/acl4.3/home/emacs/fi/fi-version
/usr/local/lib/xemacs/site-lisp/fi/fi-version
/opt/packages/acl4.3/home/emacs/fi/fi-utils
/usr/local/lib/xemacs/site-lisp/fi/fi-utils
/opt/packages/acl4.3/home/emacs/fi/fi-test
/usr/local/lib/xemacs/site-lisp/fi/fi-test
/opt/packages/acl4.3/home/emacs/fi/fi-telnet
/usr/local/lib/xemacs/site-lisp/fi/fi-telnet
/opt/packages/acl4.3/home/emacs/fi/fi-subproc
/usr/local/lib/xemacs/site-lisp/fi/fi-subproc
/opt/packages/acl4.3/home/emacs/fi/fi-sublisp
/usr/local/lib/xemacs/site-lisp/fi/fi-sublisp
/opt/packages/acl4.3/home/emacs/fi/fi-su
/usr/local/lib/xemacs/site-lisp/fi/fi-su
/opt/packages/acl4.3/home/emacs/fi/fi-stream
/usr/local/lib/xemacs/site-lisp/fi/fi-stream
/opt/packages/acl4.3/home/emacs/fi/fi-site-init
/usr/local/lib/xemacs/site-lisp/fi/fi-site-init
/opt/packages/acl4.3/home/emacs/fi/fi-shell
/usr/local/lib/xemacs/site-lisp/fi/fi-shell
/opt/packages/acl4.3/home/emacs/fi/fi-rlogin
/usr/local/lib/xemacs/site-lisp/fi/fi-rlogin
/opt/packages/acl4.3/home/emacs/fi/fi-ring
/usr/local/lib/xemacs/site-lisp/fi/fi-ring
/opt/packages/acl4.3/home/emacs/fi/fi-modes
/usr/local/lib/xemacs/site-lisp/fi/fi-modes
/opt/packages/acl4.3/home/emacs/fi/fi-lze
/usr/local/lib/xemacs/site-lisp/fi/fi-lze
/opt/packages/acl4.3/home/emacs/fi/fi-lep
/usr/local/lib/xemacs/site-lisp/fi/fi-lep
/opt/packages/acl4.3/home/emacs/fi/fi-leep0
/usr/local/lib/xemacs/site-lisp/fi/fi-leep0
/opt/packages/acl4.3/home/emacs/fi/fi-leep-xemacs
/usr/local/lib/xemacs/site-lisp/fi/fi-leep-xemacs
/opt/packages/acl4.3/home/emacs/fi/fi-leep
/usr/local/lib/xemacs/site-lisp/fi/fi-leep
/opt/packages/acl4.3/home/emacs/fi/fi-keys
/usr/local/lib/xemacs/site-lisp/fi/fi-keys
/opt/packages/acl4.3/home/emacs/fi/fi-indent
/usr/local/lib/xemacs/site-lisp/fi/fi-indent
/opt/packages/acl4.3/home/emacs/fi/fi-inc-vers
/usr/local/lib/xemacs/site-lisp/fi/fi-inc-vers
/opt/packages/acl4.3/home/emacs/fi/fi-gnu
/usr/local/lib/xemacs/site-lisp/fi/fi-gnu
/opt/packages/acl4.3/home/emacs/fi/fi-filec
/usr/local/lib/xemacs/site-lisp/fi/fi-filec
/opt/packages/acl4.3/home/emacs/fi/fi-emacs18
/usr/local/lib/xemacs/site-lisp/fi/fi-emacs18
/opt/packages/acl4.3/home/emacs/fi/fi-emacs19
/usr/local/lib/xemacs/site-lisp/fi/fi-emacs19
/opt/packages/acl4.3/home/emacs/fi/fi-dmode
/usr/local/lib/xemacs/site-lisp/fi/fi-dmode
/opt/packages/acl4.3/home/emacs/fi/fi-db
/usr/local/lib/xemacs/site-lisp/fi/fi-db
/opt/packages/acl4.3/home/emacs/fi/fi-composer
/usr/local/lib/xemacs/site-lisp/fi/fi-composer
/opt/packages/acl4.3/home/emacs/fi/fi-clman
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Installed XEmacs Packages:
-------------------------
(zenirc ver: 1.09 upstream: regular)
(xslt-process ver: 1.12 upstream: 1.2.1)
(xslide ver: 1.09 upstream: 0.2.2)
(xetla ver: 1.01 upstream: steve(a)eicq.org--2005/xetla--main--1.1--version-0)
(xemacs-devel ver: 1.72 upstream: No-Upstream-Ver)
(xemacs-base ver: 2.01 upstream: No-Upstream-Ver)
(x-symbol ver: 1.1 upstream: 4.5.1)
(w3 ver: 1.18 upstream: regular)
(vm ver: 6.92 upstream: regular)
(viper ver: 1.25 upstream: regular)
(view-process ver: 1.13 upstream: 2.4)
(vc ver: 1.41 upstream: No-Upstream-Ver)
(tramp ver: 1.28 upstream: 2.0.51)
(tooltalk ver: 1.13 upstream: regular)
(tm ver: 1.27 upstream: regular)
(time ver: 1.14 upstream: 1.17)
(textools ver: 1.15 upstream: No-Upstream-Ver)
(text-modes ver: 1.9 upstream: No-Upstream-Ver)
(texinfo ver: 1.3 upstream: No-Upstream-Ver)
(supercite ver: 1.17 upstream: regular)
(strokes ver: 1.08 upstream: regular)
(speedbar ver: 1.28 upstream: 0.14beta4)
(sounds-wav ver: 1.1 upstream: regular)
(sounds-au ver: 1.12 upstream: No-Upstream-Ver)
(slider ver: 1.13 upstream: regular)
(sh-script ver: 1.21 upstream: 2.0f)
(sgml ver: 1.11 upstream: No-Upstream-Ver)
(semantic ver: 1.05 upstream: regular)
(scheme ver: 1.11 upstream: regular)
(reftex ver: 1.34 upstream: 4.21)
(python-modes ver: 1.07 upstream: No-Upstream-Ver)
(psgml-dtds ver: 1.03 upstream: No-Upstream-Ver)
(psgml ver: 1.44 upstream: 1.3.1)
(ps-print-nomule ver: 1.05 upstream: regular)
(ps-print ver: 1.11 upstream: 6.5.6)
(prog-modes ver: 2.06 upstream: No-Upstream-Ver)
(preview ver: 2003.0119 upstream: regular)
(pgg ver: 1.06 upstream: 0.1)
(perl-modes ver: 1.08 upstream: No-Upstream-Ver)
(pcomplete ver: 1.04 upstream: 1.1.6)
(pcl-cvs ver: 1.66 upstream: R-2_9_9)
(pc ver: 1.28 upstream: No-Upstream-Ver)
(os-utils ver: 1.36 upstream: No-Upstream-Ver)
(oo-browser ver: 1.04 upstream: 4.08)
(net-utils ver: 1.48 upstream: N/A)
(mule-ucs ver: 1.14 upstream: 0.84)
(mule-base ver: 1.47 upstream: No-Upstream-Ver)
(misc-games ver: 1.18 upstream: No-Upstream-Ver)
(mine ver: 1.16 upstream: 1.9)
(mailcrypt ver: 2.14 upstream: 3.5.8)
(mail-lib ver: 1.75 upstream: No-Upstream-Ver)
(lookup ver: 1.15 upstream: 1.0)
(locale ver: 1.22 upstream: No-Upstream-Ver)
(leim ver: 1.22 upstream: No-Upstream-Ver)
(latin-unity ver: 1.16 upstream: 1.16)
(jde ver: 1.48 upstream: 2.3.2)
(ispell ver: 1.32 upstream: 3.6)
(ilisp ver: 1.33 upstream: 5.12.0)
(igrep ver: 1.14 upstream: 2.111)
(hm--html-menus ver: 1.23 upstream: 5.9)
(gnus ver: 1.89 upstream: 5.10.7)
(gnats ver: 1.17 upstream: 3.101)
(games ver: 1.17 upstream: 1.04)
(fsf-compat ver: 1.15 upstream: No-Upstream-Ver)
(frame-icon ver: 1.11 upstream: No-Upstream-Ver)
(forms ver: 1.13 upstream: regular)
(footnote ver: 1.16 upstream: 0.18x)
(eudc ver: 1.33 upstream: regular)
(eterm ver: 1.17 upstream: No-Upstream-Ver)
(eshell ver: 1.01 upstream: regular)
(emerge ver: 1.09 upstream: regular)
(elib ver: 1.11 upstream: 1.0)
(eieio ver: 1.01 upstream: regular)
(eicq ver: 1.04 upstream: regular)
(efs ver: 1.33 upstream: 1.23)
(edit-utils ver: 2.32 upstream: No-Upstream-Ver)
(ediff ver: 1.6 upstream: 2.75)
(edebug ver: 1.21 upstream: No-Upstream-Ver)
(ecrypto ver: 0.19 upstream: 2.0)
(docbookide ver: 0.07000000000000001 upstream: 0.1)
(dired ver: 1.1 upstream: regular)
(debug ver: 1.14 upstream: regular)
(cookie ver: 1.13 upstream: regular)
(cc-mode ver: 1.45 upstream: 5.30.10)
(calendar ver: 1.23 upstream: No-Upstream-Ver)
(calc ver: 1.26 upstream: 2.02fX3)
(c-support ver: 1.22 upstream: No-Upstream-Ver)
(build ver: 1.14 upstream: 2.02)
(bbdb ver: 1.29 upstream: 2.34)
(auctex ver: 1.46 upstream: 11.55)
(apel ver: 1.32 upstream: 10.6)
Installed Modules:
-----------------
Features:
--------
(bbdb regexp-opt timezone mailcrypt comint xemacsbug shadow fast-lock
lazy-shot mail-abbrevs sendmail rfc822 ilisp-easy-menu info-look
overlay info ilisp-browse-cltl2 url mm mule-sysdp url-parse url-vars
browse-url appt time cal-tex diary-lib calendar completion autoinsert
german-time advice advice-preload vc ring vc-hooks package-get
package-admin config iswitchb edmacro scroll-in-place paren mic-paren
timer blink-paren gnuserv view-less view default-dir efs-cu efs-x19.15
efs-fnh efs-ovwrt efs-auto dired-faces dired-xemacs dired tex-site
font-lock crypt crypt++ completer gnus gnus-ems gnus-xmas messagexmas
nnheader nnheaderxm gnus-util netrc time-date mail-utils mm-util
mail-prsvr wid-edit cus-face zenirc-autoloads xslt-process-autoloads
xslide-autoloads xetla-autoloads xemacs-devel-autoloads
xemacs-base-autoloads x-symbol-autoloads w3-autoloads vm-autoloads
viper-autoloads view-process-autoloads vc-autoloads tramp-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 slider-autoloads sh-script-autoloads
sgml-autoloads semantic-autoloads scheme-autoloads reftex-autoloads
python-modes-autoloads psgml-dtds-autoloads psgml-autoloads
ps-print-nomule-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
net-utils-autoloads mule-ucs-autoloads mule-base-autoloads
misc-games-autoloads mine-autoloads mailcrypt-autoloads
mail-lib-autoloads lookup-autoloads locale-autoloads leim-autoloads
latin-unity-autoloads jde-autoloads ispell-autoloads ilisp-autoloads
igrep-autoloads hm--html-menus-autoloads gnus-autoloads
gnats-autoloads games-autoloads fsf-compat-autoloads
frame-icon-autoloads forms-autoloads footnote-autoloads eudc-autoloads
eterm-autoloads eshell-autoloads emerge-autoloads elib-autoloads
eieio-autoloads eicq-autoloads efs-autoloads edit-utils-autoloads
ediff-autoloads edebug-autoloads ecrypto-autoloads
docbookide-autoloads dired-autoloads debug-autoloads cookie-autoloads
cc-mode-autoloads calendar-autoloads calc-autoloads
c-support-autoloads build-autoloads bbdb-autoloads auctex-autoloads
apel-autoloads modules-autoloads mule-autoloads auto-autoloads
loadhist rsz-minibuf auto-show fontl-hooks canna-leim tibetan lao
devanagari indian slovenian czech romanian ccl 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
cus-file derived newcomment env text-props fontconfig frame obsolete
cus-start custom widget cl-extra cl cl-19 packages backquote unicode
lucid-scrollbars cut-buffer lucid-menubars athena-dialogs x
c-balloon-help tty-frames tty toolbar nas-sound native-sound scrollbar
unix-processes multicast network-streams subprocesses modules
menu-accelerator-support menubar md5 xemacs xim mule gutter png gif
jpeg xface xpm xbm lisp-float-type file-coding linux dialog devices
window-system base64)
--
--- http://www.coling.uni-freiburg.de/~schauer/ ---
"(declare (tolerate-programmer-stupidity -3))"
-- Wade Humeniuk in comp.lang.lisp
1:56 a.m.
>>>> "HS" == Holger Schauer
<Holger.Schauer(a)gmx.de> writes:
HS> Hello, with both b23 and b24 I can a easily trigger a crash in
HS> cperl-mode with font-locking enabled (it doesn't crash without
HS> font-lock). Here's the backtrace:
Can you give an exact recipe starting from "xemacs -vanilla"?
--
School of Systems and Information Engineering http://turnbull.sk.tsukuba.ac.jp
University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN
Ask not how you can "do" free software business;
ask what your business can "do for" free software.
10:58 p.m.
On 4550 September 1993, Stephen J. Turnbull wrote:
>>>>> "HS" == Holger Schauer
<Holger.Schauer(a)gmx.de> writes:
HS> Hello, with both b23 and b24 I can a easily trigger a
crash in
HS> cperl-mode with font-locking enabled (it doesn't crash without
HS> font-lock). Here's the backtrace:
Can you give an exact recipe starting from "xemacs
-vanilla"?
Yes. It took quite some time, but I can now. It seems that completion
is also involved (I have some kind of deja vu -- didn't I report
nearly exactly the same problem some time/beta version ago?). Anyway.
Here you go:
1) Fire up xemacs -vanilla
2) load-library completion
3) M-: (initialize-completions)
4) load-library cperl-mode
5) load-library font-lock-mode
6) Load the following file (without the lines, of course):
--8<------------------------schnipp------------------------->8---
#!/usr/bin/perl -w
# $Id: $
my $test_program;
--8<------------------------schnapp------------------------->8---
7) Ensure you have cperl-mode and font-lock enabled in that buffer.
8) Move to (beginning-of-buffer)
9) Hit the key 'm'
10) See the backtrace in your gdb.
Without completion, I can't trigger the bug. I moved my
.completions-file out of the way, to no avail. completion is from
xemacs-packages. I have no idea what version, put the changelog in
completion.el talks about some version 10. BTW: This recipe also works
in an older XEmacs 21.5b-18, hence it's probably not a new problem.
Hope that helps,
Holger
--
--- http://www.coling.uni-freiburg.de/~schauer/ ---
"Im Unterschied zu Linux schiesst die Bank ihre Kunden nicht ab,
sondern teilt ihnen mit, dass sie kein Geld bekommen. ;-)"
-- Christian Knapmeyer in de.comp.os.unix.discussion
5:16 a.m.
>>>> "HS" == Holger Schauer
<Holger.Schauer(a)gmx.de> writes:
HS> Yes. It took quite some time, but I can now. It seems that
HS> completion is also involved (I have some kind of deja vu --
HS> didn't I report nearly exactly the same problem some time/beta
HS> version ago?). Anyway.
Could be. I'll try searching for it. Re: your recipe
1) Fire up xemacs -vanilla
2) load-library completion
3) M-: (initialize-completions)
4) load-library cperl-mode
5) load-library font-lock-mode
6) Load the following file (without the lines, of course):
--8<------------------------schnipp------------------------->8---
#!/usr/bin/perl -w
# $Id: $
my $test_program;
--8<------------------------schnapp------------------------->8---
7) Ensure you have cperl-mode and font-lock enabled in that buffer.
8) Move to (beginning-of-buffer)
9) Hit the key 'm'
10) See the backtrace in your gdb.
I really appreciate you going to the trouble of working this out!
Unfortunately, your recipe does _not_ crash on Mac OS X, or on Linux,
for me. I'm in the process of restoring my dev environment after my
box went up in smoke, so I don't have the most recent LISP packages
available on either machine. I'll get around to that in a day or so.
Now, when I type "m", I just get "m#!/usr/bin/perl -w" in the buffer.
What do you expect to get?
In your posted backtrace, the crash goes through Fdelete_char. Is
that true for this recipe as well? That suggests to me that there is
some kind of completion in process (self-insert-command won't do
delete-char, of course). But since it doesn't happen for me, it seems
like maybe you already have some kind of completion or advice active
that I don't?
Could you try sourcing .gdbinit (from the XEmacs src directory) into
gdb, then start XEmacs, execute the recipe, then type lbt (==
lisp_back_trace)? That should tell us more about what LISP was doing
at the time. In particular, I'd like to know if it's in completion
and what it's trying to do at the time.
--
School of Systems and Information Engineering http://turnbull.sk.tsukuba.ac.jp
University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN
Ask not how you can "do" free software business;
ask what your business can "do for" free software.
7:59 p.m.
On 4551 September 1993, Stephen J. Turnbull wrote:
>>>>> "HS" == Holger Schauer
<Holger.Schauer(a)gmx.de> writes:
HS> Yes. It took quite some time, but I can now. It seems
that
HS> completion is also involved (I have some kind of deja vu --
HS> didn't I report nearly exactly the same problem some time/beta
HS> version ago?). Anyway.
Could be. I'll try searching for it. Re: your recipe
8) Move to (beginning-of-buffer)
9) Hit the key 'm'
I made a mistake: you have to insert a blank or hit the delete key
afterwards.
10) See the backtrace in your gdb.
I really appreciate you going to the trouble of working this out!
Unfortunately, your recipe does _not_ crash on Mac OS X, or on
Linux, for me. [..] Now, when I type "m", I just get
"m#!/usr/bin/perl -w" in the buffer. What do you expect to get?
Right, my mistake, sorry. If I insert a blank directly after the "m"
or hit the backspace-key, XEmacs crashes.
But since it doesn't happen for me, it seems like maybe you
already
have some kind of completion or advice active that I don't?
I just did what I reported in the recipe.
Could you try sourcing .gdbinit (from the XEmacs src directory) into
gdb, then start XEmacs, execute the recipe, then type lbt (==
lisp_back_trace)? That should tell us more about what LISP was doing
at the time. In particular, I'd like to know if it's in completion
and what it's trying to do at the time.
I can't figure it out. Here's the lbt:
(gdb) lbt
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
("(in map-extents-internal)" "[internal]")
put-nonduplicable-text-property(1 22 syntax-table nil)
# bind (start end modified buffer-undo-list inhibit-read-only buffer-file-name
buffer-file-truename maybe-loudly end beg)
font-lock-default-unfontify-region(1 22 nil)
# bind (loudly end beg)
font-lock-unfontify-region(1 22)
# (unwind-protect ...)
# bind (modified buffer-undo-list inhibit-read-only old-syntax-table buffer-fi
le-name buffer-file-truename loudly end beg)
font-lock-default-fontify-region(1 22 nil)
# bind (loudly end beg)
font-lock-fontify-region(1 22)
# bind (val end beg)
#<compiled-function (beg end val) "...(5)" [end beg
font-lock-fontify-region]
3>(1 22 t)
map-range-table(#<compiled-function (beg end val) "...(5)" [end beg
font-lock-
fontify-region] 3> #<range-table [1 22) t 0x6e1ae>)
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
# bind (dummy buffer)
#<compiled-function (buffer dummy) "...(47)"
[font-lock-pending-buffer-table f
ont-lock-range-table buffer remhash buffer-live-p clear-range-table map-extents
#<compiled-function (ex dummy-maparg) "...(32)" [font-lock-range-table ex end
be
g extent-start-position extent-end-position 0 1 put-range-table t] 5> nil font-l
ock-pending t put-text-property map-range-table #<compiled-function (beg end val
) "...(5)" [end beg font-lock-fontify-region] 3>] 9>(#<buffer
"foo.pl"> t)
# (unwind-protect ...)
maphash(#<compiled-function (buffer dummy) "...(47)"
[font-lock-pending-buffer
-table font-lock-range-table buffer remhash buffer-live-p clear-range-table map-
extents #<compiled-function (ex dummy-maparg) "...(32)"
[font-lock-range-table e
x end beg extent-start-position extent-end-position 0 1 put-range-table t] 5> ni
l font-lock-pending t put-text-property map-range-table #<compiled-function (beg
end val) "...(5)" [end beg font-lock-fontify-region] 3>] 9>
#<hash-table size 0
/29 weakness key 0x6e1ac>)
# (unwind-protect ...)
# bind (match-data)
font-lock-fontify-pending-extents()
#<compiled-function nil "...(10)" [font-lock-pending-buffer-table
hash-table-c
ount 0 font-lock-fontify-pending-extents] 2>()
# (unwind-protect ...)
call-with-condition-handler(#<compiled-function (__call_trapping_errors_arg__)
"...(17)" [__call_trapping_errors_arg__ errstr error-message-string lwarn
gener
al warning "Error in %s: %s\n\nBacktrace follows:\n\n%s" "unknown"
backtrace-in-
condition-handler-eliminating-handler] 8> #<compiled-function nil
"...(10)" [fon
t-lock-pending-buffer-table hash-table-count 0 font-lock-fontify-pending-extents
] 2>)
# (condition-case ... . ((error)))
font-lock-pre-idle-hook()
# (unwind-protect ...)
# (catch #<INTERNAL OBJECT (XEmacs bug?) (opaque, size=0) 0x8cf3020> ...)
# (unwind-protect ...)
# (unwind-protect ...)
# bind (inhibit-quit)
# (unwind-protect ...)
# (unwind-protect ...)
# bind (inhibit-quit)
(next-event "[internal]")
# (condition-case ... . error)
# (catch top-level ...)
I include the C-backtrace as well for my recipe:
#0 0xb7be683b in raise () from /lib/tls/libc.so.6
#1 0xb7be7fa2 in abort () from /lib/tls/libc.so.6
#2 0x080e4723 in really_abort () at emacs.c:4659
#3 0x080e2304 in assert_failed (file=0x82fb660 "marker.c", line=345,
expr=0x82e9f60 "RECORD_TYPEP (obj, lrecord_type_marker)") at emacs.c:3982
#4 0x08112617 in error_check_marker (obj=146804672,
file=0x82fb660 "marker.c", line=345) at lisp.h:2919
#5 0x081d2a88 in byte_marker_position (marker=146804672) at marker.c:345
#6 0x0825a0c8 in signal_syntax_table_extent_changed (extent=0x865df34)
at syntax.c:412
#7 0x08121913 in signal_single_extent_changed (extent=0x865df34,
property=146804672, unused_old_start=2, unused_old_end=2) at extents.c:1925
#8 0x08121a4b in signal_extent_changed (extent=0x865df34, property=146804672,
old_start=2, old_end=2, descendants_too=0) at extents.c:1966
#9 0x08121fe1 in extent_detach (extent=0x865df34) at extents.c:2126
#10 0x0812c289 in put_text_prop_mapper (e=0x865df34, arg=0xbfdb6690)
at extents.c:6882
#11 0x08122b84 in map_extents (from=1, to=22,
fn=0x812bff1 <put_text_prop_mapper>, arg=0xbfdb6690, obj=138945936,
after=0x0, flags=5125) at extents.c:2577
#12 0x0812c899 in put_text_prop (start=1, end=22, object=138945936,
prop=146765456, value=146804672, duplicable_p=0) at extents.c:7035
#13 0x0812cb6b in Fput_nonduplicable_text_property (start=3, end=45,
prop=146765456, value=146804672, object=138945936) at extents.c:7131
#14 0x080ec9c8 in Ffuncall (nargs=5, args=0xbfdb67b4) at eval.c:3890
#15 0x0809ec9f in execute_optimized_program (
program=0x865a060 "\t«\024\b«\021\r\vZ\016\022Y«\tÆÇÈÉÊ $\210Ë
Ì\211Í\211\036\023\036\024\036\025\036\026\032\v\r\035\034Î\f\rÏÍ$\210Î\f\rÇÍ$\210\016\027«\bÎ\f\rÐÍ$\210*\n?\bË
\004ÑÍ!-\207\025ÌÔ\033P", stack_depth=5,
constants_data=0x8caadd8) at bytecode.c:862
#16 0x080f491d in funcall_compiled_function (fun=140687908, nargs=3,
args=0xbfdb6a08) at eval.c:3492
#17 0x080ecc2c in Ffuncall (nargs=4, args=0xbfdb6a04) at eval.c:3929
#18 0x0809ec9f in execute_optimized_program (
program=0x865b378 "\v\n\t\b#\207", stack_depth=4, constants_data=0x8630b18)
at bytecode.c:862
#19 0x080f491d in funcall_compiled_function (fun=140687732, nargs=2,
args=0xbfdb6c58) at eval.c:3492
#20 0x080ecc2c in Ffuncall (nargs=3, args=0xbfdb6c54) at eval.c:3929
#21 0x0809ec9f in execute_optimized_program (
program=0x8660008 "Æ Ç\211È
É\211\031\030\036\020\036\021\036\022\036\023Ê\216\v«\005Ë\v!\210Ì\r\f\"\210\016\024«\006Í\r\f\"\210\016\025¬\aÎ\r\f\n#\210Ï\r\f\n#.\a\207",
stack_depth=6, constants_data=0x8611368) at bytecode.c:862
#22 0x080f491d in funcall_compiled_function (fun=140687864, nargs=3,
args=0xbfdb6ea8) at eval.c:3492
#23 0x080ecc2c in Ffuncall (nargs=4, args=0xbfdb6ea4) at eval.c:3929
#24 0x0809ec9f in execute_optimized_program (
program=0x865b608 "\v\n\t\b#\207", stack_depth=4, constants_data=0x8630b00)
at bytecode.c:862
#25 0x080f491d in funcall_compiled_function (fun=140687688, nargs=2,
args=0xbfdb70f8) at eval.c:3492
#26 0x080ecc2c in Ffuncall (nargs=3, args=0xbfdb70f4) at eval.c:3929
#27 0x0809ec9f in execute_optimized_program (program=0x8671118
"Â\t\b\"\207",
stack_depth=3, constants_data=0x8532cec) at bytecode.c:862
#28 0x080f491d in funcall_compiled_function (fun=140688260, nargs=3,
args=0xbfdb7344) at eval.c:3492
#29 0x080ecc2c in Ffuncall (nargs=4, args=0xbfdb7340) at eval.c:3929
#30 0x08204d56 in Fmap_range_table (function=140688260, range_table=140819396)
at rangetab.c:615
#31 0x080ec91d in Ffuncall (nargs=3, args=0xbfdb7444) at eval.c:3890
#32 0x0809ec9f in execute_optimized_program (
program=0x866e0b0
"Ã\n\b\"\210Ä\n!%Å\t!\210r\nq\210\212\214~\210ÆÇÈ\211\211\211\211ÉÊ&\b\210ËedÉÈ$\210ÌÍ\t\"+\207",
stack_depth=9,
constants_data=0x8cdfe08) at bytecode.c:862
#33 0x080f491d in funcall_compiled_function (fun=140688304, nargs=2,
args=0xbfdb76c4) at eval.c:3492
#34 0x080ecc2c in Ffuncall (nargs=3, args=0xbfdb76c0) at eval.c:3929
#35 0x080ddeff in Fmaphash (function=140688304, hash_table=140724136)
at elhash.c:1453
#36 0x080ec91d in Ffuncall (nargs=3, args=0xbfdb77b4) at eval.c:3890
#37 0x0809ec9f in execute_optimized_program (
program=0x866d0bc "Â \031Ã\216ÄÅ\b\"*\207", stack_depth=3,
constants_data=0x8637108) at bytecode.c:862
#38 0x080f491d in funcall_compiled_function (fun=140688348, nargs=0,
args=0xbfdb79f8) at eval.c:3492
#39 0x080ecc2c in Ffuncall (nargs=1, args=0xbfdb79f4) at eval.c:3929
#40 0x0809ec9f in execute_optimized_program (
program=0x866d080 "Á\b!ÂV\003Ã \207", stack_depth=2,
constants_data=0x8630c38) at bytecode.c:862
#41 0x080f491d in funcall_compiled_function (fun=140688084, nargs=0,
args=0xbfdb7c68) at eval.c:3492
#42 0x080ecc2c in Ffuncall (nargs=1, args=0xbfdb7c64) at eval.c:3929
#43 0x080e9335 in Fcall_with_condition_handler (nargs=2, args=0xbfdb7c60)
at eval.c:2101
#44 0x080ec0a6 in Feval (form=140819876) at eval.c:3673
#45 0x080e8c8a in condition_case_1 (handlers=140820296,
bfun=0x80eb4c8 <Feval>, barg=140819876,
hfun=0x80e8db4 <run_condition_case_handlers>, harg=146804672)
at eval.c:1924
#46 0x080e919c in condition_case_3 (bodyform=140819876, var=146804672,
handlers=140820296) at eval.c:2006
#47 0x080a01f2 in execute_rare_opcode (stack_ptr=0xbfdb7f84,
unused_program_ptr=0x865bcec "\207", opcode=Bcondition_case)
at bytecode.c:1438
#48 0x0809e9b6 in execute_optimized_program (program=0x865bce8 "ÀÁÂ\217\207",
stack_depth=3, constants_data=0x8532cd8) at bytecode.c:754
#49 0x080f491d in funcall_compiled_function (fun=140688128, nargs=0,
args=0xbfdb8264) at eval.c:3492
#50 0x080ecc2c in Ffuncall (nargs=1, args=0xbfdb8260) at eval.c:3929
#51 0x080edc07 in run_hook_with_args_in_buffer (buf=0x8482590, nargs=1,
args=0xbfdb8260, cond=RUN_HOOKS_TO_COMPLETION) at eval.c:4412
#52 0x080edc6f in run_hook_with_args (nargs=1, args=0xbfdb8260,
cond=RUN_HOOKS_TO_COMPLETION) at eval.c:4425
#53 0x080edebb in run_hook (hook=140708360) at eval.c:4494
#54 0x080efda7 in safe_run_hook_trapping_problems_1 (puta=0x8bd0f30)
at eval.c:5580
#55 0x080eead9 in call_trapping_problems_2 (opaque=147796224) at eval.c:4930
#56 0x080e93be in call_with_condition_handler (
handler=0x80eea2e <flagged_a_squirmer>, handler_arg=147796224,
fun=0x80eeaa1 <call_trapping_problems_2>, arg=147796224) at eval.c:2135
#57 0x080eeb03 in call_trapping_problems_1 (opaque=147796224) at eval.c:4936
#58 0x080e8719 in internal_catch (tag=147796000,
func=0x80eeadb <call_trapping_problems_1>, arg=147796224,
threw=0xbfdb83fc, thrown_tag=0xbfdb8408, backtrace_before_throw=0xbfdb8400)
at eval.c:1530
#59 0x080eef41 in call_trapping_problems (warning_class=146798344,
warning_string=0x0, flags=131235, problem=0xbfdb8500,
fun=0x80efd90 <safe_run_hook_trapping_problems_1>, arg=0x8bd0f30)
at eval.c:5209
#60 0x080efe72 in safe_run_hook_trapping_problems (warning_class=146610336,
hook_symbol=146607920, flags=160) at eval.c:5602
#61 0x08103512 in run_pre_idle_hook () at event-stream.c:2104
#62 0x08216299 in redisplay () at redisplay.c:7152
#63 0x08103a0f in Fnext_event (event=140751776, prompt=146804672)
at event-stream.c:2286
#64 0x080b06f3 in Fcommand_loop_1 () at cmdloop.c:599
#65 0x080b04cd in command_loop_1 (unused_dummy=146804672) at cmdloop.c:505
#66 0x080e8c8a in condition_case_1 (handlers=146798344,
bfun=0x80b049b <command_loop_1>, barg=146804672,
hfun=0x80b00af <cmd_error>, harg=146804672) at eval.c:1924
#67 0x080b01cb in command_loop_3 () at cmdloop.c:262
#68 0x080b01ed in command_loop_2 (unused_dummy=146804672) at cmdloop.c:275
#69 0x080e8719 in internal_catch (tag=146553304,
func=0x80b01e2 <command_loop_2>, arg=146804672, threw=0x0, thrown_tag=0x0,
backtrace_before_throw=0x0) at eval.c:1530
#70 0x080b0304 in initial_command_loop (load_me=146804672) at cmdloop.c:313
#71 0x080e1054 in xemacs_21_5_b24_i686_pc_linux (argc=2, argv=0xbfdb8a74,
unused_envp=0x0, restart=0) at emacs.c:2663
#72 0x080e1a35 in main (argc=2, argv=0xbfdb8a74, unused_envp=0xbfdb8a80)
at emacs.c:3107
I'll try to figure out whether I can trigger the crash without
byte-compiled emacs lisp files. Perhaps it'll get clearer then.
Holger
--
--- http://www.coling.uni-freiburg.de/~schauer/ ---
"Fernab jeder hormonellen Verblendung faellt eine frappierende
Aehnlichkeit in Koerperbau, Haltung, Mimik, Feingefuehl und
technischem Sachverstand zwischen Frau und Tyrannosaurus Rex
unmittelbar ins Auge." -- J.E. Guenther in de.alt.sysadmin.recovery
8:10 p.m.
On 4551 September 1993, Stephen J. Turnbull wrote:
Could you try sourcing .gdbinit (from the XEmacs src directory) into
gdb, then start XEmacs, execute the recipe, then type lbt (==
lisp_back_trace)? That should tell us more about what LISP was doing
at the time. In particular, I'd like to know if it's in completion
and what it's trying to do at the time.
Okay, I loaded the .el-files from hand and now get the following,
probably more informative lisp backtrace. To me, the crash seems to be
related to font-lock, text-properties and maybe syntax-table issues.
However, I have no idea what's inside the unwind-protects.
Holger
(gdb) lbt
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
# (unwind-protect ...)
("(in map-extents-internal)" "[internal]")
put-nonduplicable-text-property(1 22 syntax-table nil)
(if lookup-syntax-properties (put-nonduplicable-text-property start end (quote
syntax-table) nil))
# bind (end start)
font-lock-remove-face(1 22)
# bind (buffer-file-truename buffer-file-name inhibit-read-only buffer-undo-list
modified)
(let ((modified (buffer-modified-p)) (buffer-undo-list t) (inhibit-read-only t)
buffer-file-name buffer-file-truename) (font-lock-remove-face beg end) (and (not modified)
(buffer-modified-p) (set-buffer-modified-p nil)))
# bind (maybe-loudly end beg)
font-lock-default-unfontify-region(1 22 nil)
funcall(font-lock-default-unfontify-region 1 22 nil)
# bind (loudly end beg)
font-lock-unfontify-region(1 22)
(progn (if font-lock-syntax-table (set-syntax-table font-lock-syntax-table))
(font-lock-unfontify-region beg end) (when font-lock-syntactic-keywords
(font-lock-fontify-syntactic-keywords-region beg end)) (unless font-lock-keywords-only
(font-lock-fontify-syntactically-region beg end loudly))
(font-lock-fontify-keywords-region beg end loudly))
# (unwind-protect ...)
(unwind-protect (progn (if font-lock-syntax-table (set-syntax-table
font-lock-syntax-table)) (font-lock-unfontify-region beg end) (when
font-lock-syntactic-keywords (font-lock-fontify-syntactic-keywords-region beg end))
(unless font-lock-keywords-only (font-lock-fontify-syntactically-region beg end loudly))
(font-lock-fontify-keywords-region beg end loudly)) (set-syntax-table old-syntax-table)
(and (not modified) (buffer-modified-p) (set-buffer-modified-p nil)))
# bind (buffer-file-truename buffer-file-name old-syntax-table inhibit-read-only
buffer-undo-list modified)
(let ((modified (buffer-modified-p)) (buffer-undo-list t) (inhibit-read-only t)
(old-syntax-table (syntax-table)) buffer-file-name buffer-file-truename) (unwind-protect
(progn (if font-lock-syntax-table (set-syntax-table font-lock-syntax-table))
(font-lock-unfontify-region beg end) (when font-lock-syntactic-keywords
(font-lock-fontify-syntactic-keywords-region beg end)) (unless font-lock-keywords-only
(font-lock-fontify-syntactically-region beg end loudly))
(font-lock-fontify-keywords-region beg end loudly)) (set-syntax-table old-syntax-table)
(and (not modified) (buffer-modified-p) (set-buffer-modified-p nil))))
# bind (loudly end beg)
font-lock-default-fontify-region(1 22 nil)
funcall(font-lock-default-fontify-region 1 22 nil)
# bind (loudly end beg)
font-lock-fontify-region(1 22)
# bind (val end beg)
(lambda (beg end val) (font-lock-fontify-region beg end))(1 22 t)
map-range-table((lambda (beg end val) (font-lock-fontify-region beg end))
#<range-table [1 22) t 0xcca4f>)
# (unwind-protect ...)
(save-restriction (widen) (map-extents (function (lambda (ex dummy-maparg) (let* ((beg
(extent-start-position ex)) (end (extent-end-position ex)) (beg (progn (goto-char beg)
(beginning-of-line) (point))) (end (progn (goto-char end) (forward-line 1) (point))))
(put-range-table beg end t font-lock-range-table)))) nil nil nil nil nil (quote
font-lock-pending) t) (put-text-property (point-min) (point-max) (quote font-lock-pending)
nil) (map-range-table (function (lambda (beg end val) (font-lock-fontify-region beg end)))
font-lock-range-table))
# (unwind-protect ...)
(save-excursion (save-restriction (widen) (map-extents (function (lambda (ex
dummy-maparg) (let* ((beg (extent-start-position ex)) (end (extent-end-position ex)) (beg
(progn (goto-char beg) (beginning-of-line) (point))) (end (progn (goto-char end)
(forward-line 1) (point)))) (put-range-table beg end t font-lock-range-table)))) nil nil
nil nil nil (quote font-lock-pending) t) (put-text-property (point-min) (point-max) (quote
font-lock-pending) nil) (map-range-table (function (lambda (beg end val)
(font-lock-fontify-region beg end))) font-lock-range-table)))
# (unwind-protect ...)
(save-current-buffer (set-buffer buffer) (save-excursion (save-restriction (widen)
(map-extents (function (lambda (ex dummy-maparg) (let* ((beg (extent-start-position ex))
(end (extent-end-position ex)) (beg (progn (goto-char beg) (beginning-of-line) (point)))
(end (progn (goto-char end) (forward-line 1) (point)))) (put-range-table beg end t
font-lock-range-table)))) nil nil nil nil nil (quote font-lock-pending) t)
(put-text-property (point-min) (point-max) (quote font-lock-pending) nil) (map-range-table
(function (lambda (beg end val) (font-lock-fontify-region beg end)))
font-lock-range-table))))
(with-current-buffer buffer (save-excursion (save-restriction (widen) (map-extents
(function (lambda (ex dummy-maparg) (let* ((beg (extent-start-position ex)) (end
(extent-end-position ex)) (beg (progn (goto-char beg) (beginning-of-line) (point))) (end
(progn (goto-char end) (forward-line 1) (point)))) (put-range-table beg end t
font-lock-range-table)))) nil nil nil nil nil (quote font-lock-pending) t)
(put-text-property (point-min) (point-max) (quote font-lock-pending) nil) (map-range-table
(function (lambda (beg end val) (font-lock-fontify-region beg end)))
font-lock-range-table))))
(progn (clear-range-table font-lock-range-table) (with-current-buffer buffer
(save-excursion (save-restriction (widen) (map-extents (function (lambda (ex dummy-maparg)
(let* ((beg (extent-start-position ex)) (end (extent-end-position ex)) (beg (progn
(goto-char beg) (beginning-of-line) (point))) (end (progn (goto-char end) (forward-line 1)
(point)))) (put-range-table beg end t font-lock-range-table)))) nil nil nil nil nil (quote
font-lock-pending) t) (put-text-property (point-min) (point-max) (quote font-lock-pending)
nil) (map-range-table (function (lambda (beg end val) (font-lock-fontify-region beg end)))
font-lock-range-table)))))
(if (buffer-live-p buffer) (progn (clear-range-table font-lock-range-table)
(with-current-buffer buffer (save-excursion (save-restriction (widen) (map-extents
(function (lambda (ex dummy-maparg) (let* ((beg (extent-start-position ex)) (end
(extent-end-position ex)) (beg (progn (goto-char beg) (beginning-of-line) (point))) (end
(progn (goto-char end) (forward-line 1) (point)))) (put-range-table beg end t
font-lock-range-table)))) nil nil nil nil nil (quote font-lock-pending) t)
(put-text-property (point-min) (point-max) (quote font-lock-pending) nil) (map-range-table
(function (lambda (beg end val) (font-lock-fontify-region beg end)))
font-lock-range-table))))))
(when (buffer-live-p buffer) (clear-range-table font-lock-range-table)
(with-current-buffer buffer (save-excursion (save-restriction (widen) (map-extents
(function (lambda (ex dummy-maparg) (let* ((beg (extent-start-position ex)) (end
(extent-end-position ex)) (beg (progn (goto-char beg) (beginning-of-line) (point))) (end
(progn (goto-char end) (forward-line 1) (point)))) (put-range-table beg end t
font-lock-range-table)))) nil nil nil nil nil (quote font-lock-pending) t)
(put-text-property (point-min) (point-max) (quote font-lock-pending) nil) (map-range-table
(function (lambda (beg end val) (font-lock-fontify-region beg end)))
font-lock-range-table)))))
# bind (dummy buffer)
(lambda (buffer dummy) (remhash buffer font-lock-pending-buffer-table) (when
(buffer-live-p buffer) (clear-range-table font-lock-range-table) (with-current-buffer
buffer (save-excursion (save-restriction (widen) (map-extents (function (lambda (ex
dummy-maparg) (let* ((beg (extent-start-position ex)) (end (extent-end-position ex)) (beg
(progn (goto-char beg) (beginning-of-line) (point))) (end (progn (goto-char end)
(forward-line 1) (point)))) (put-range-table beg end t font-lock-range-table)))) nil nil
nil nil nil (quote font-lock-pending) t) (put-text-property (point-min) (point-max) (quote
font-lock-pending) nil) (map-range-table (function (lambda (beg end val)
(font-lock-fontify-region beg end))) font-lock-range-table))))))(#<buffer
"foo.pl"> t)
# (unwind-protect ...)
maphash((lambda (buffer dummy) (remhash buffer font-lock-pending-buffer-table) (when
(buffer-live-p buffer) (clear-range-table font-lock-range-table) (with-current-buffer
buffer (save-excursion (save-restriction (widen) (map-extents (function (lambda (ex
dummy-maparg) (let* ((beg (extent-start-position ex)) (end (extent-end-position ex)) (beg
(progn (goto-char beg) (beginning-of-line) (point))) (end (progn (goto-char end)
(forward-line 1) (point)))) (put-range-table beg end t font-lock-range-table)))) nil nil
nil nil nil (quote font-lock-pending) t) (put-text-property (point-min) (point-max) (quote
font-lock-pending) nil) (map-range-table (function (lambda (beg end val)
(font-lock-fontify-region beg end))) font-lock-range-table)))))) #<hash-table size 0/29
weakness key 0xcca45>)
(progn (maphash (function (lambda (buffer dummy) (remhash buffer
font-lock-pending-buffer-table) (when (buffer-live-p buffer) (clear-range-table
font-lock-range-table) (with-current-buffer buffer (save-excursion (save-restriction
(widen) (map-extents (function (lambda (ex dummy-maparg) (let* ((beg
(extent-start-position ex)) (end (extent-end-position ex)) (beg (progn (goto-char beg)
(beginning-of-line) (point))) (end (progn (goto-char end) (forward-line 1) (point))))
(put-range-table beg end t font-lock-range-table)))) nil nil nil nil nil (quote
font-lock-pending) t) (put-text-property (point-min) (point-max) (quote font-lock-pending)
nil) (map-range-table (function (lambda (beg end val) (font-lock-fontify-region beg end)))
font-lock-range-table))))))) font-lock-pending-buffer-table))
# (unwind-protect ...)
(unwind-protect (progn (maphash (function (lambda (buffer dummy) (remhash buffer
font-lock-pending-buffer-table) (when (buffer-live-p buffer) (clear-range-table
font-lock-range-table) (with-current-buffer buffer (save-excursion (save-restriction
(widen) (map-extents (function (lambda (ex dummy-maparg) (let* ((beg
(extent-start-position ex)) (end (extent-end-position ex)) (beg (progn (goto-char beg)
(beginning-of-line) (point))) (end (progn (goto-char end) (forward-line 1) (point))))
(put-range-table beg end t font-lock-range-table)))) nil nil nil nil nil (quote
font-lock-pending) t) (put-text-property (point-min) (point-max) (quote font-lock-pending)
nil) (map-range-table (function (lambda (beg end val) (font-lock-fontify-region beg end)))
font-lock-range-table))))))) font-lock-pending-buffer-table)) (store-match-data
match-data))
# bind (match-data)
(let ((match-data (match-data))) (unwind-protect (progn (maphash (function (lambda
(buffer dummy) (remhash buffer font-lock-pending-buffer-table) (when (buffer-live-p
buffer) (clear-range-table font-lock-range-table) (with-current-buffer buffer
(save-excursion (save-restriction (widen) (map-extents (function (lambda (ex dummy-maparg)
(let* ((beg (extent-start-position ex)) (end (extent-end-position ex)) (beg (progn
(goto-char beg) (beginning-of-line) (point))) (end (progn (goto-char end) (forward-line 1)
(point)))) (put-range-table beg end t font-lock-range-table)))) nil nil nil nil nil (quote
font-lock-pending) t) (put-text-property (point-min) (point-max) (quote font-lock-pending)
nil) (map-range-table (function (lambda (beg end val) (font-lock-fontify-region beg end)))
font-lock-range-table))))))) font-lock-pending-buffer-table)) (store-match-data
match-data)))
(save-match-data (maphash (function (lambda (buffer dummy) (remhash buffer
font-lock-pending-buffer-table) (when (buffer-live-p buffer) (clear-range-table
font-lock-range-table) (with-current-buffer buffer (save-excursion (save-restriction
(widen) (map-extents (function (lambda (ex dummy-maparg) (let* ((beg
(extent-start-position ex)) (end (extent-end-position ex)) (beg (progn (goto-char beg)
(beginning-of-line) (point))) (end (progn (goto-char end) (forward-line 1) (point))))
(put-range-table beg end t font-lock-range-table)))) nil nil nil nil nil (quote
font-lock-pending) t) (put-text-property (point-min) (point-max) (quote font-lock-pending)
nil) (map-range-table (function (lambda (beg end val) (font-lock-fontify-region beg end)))
font-lock-range-table))))))) font-lock-pending-buffer-table))
font-lock-fontify-pending-extents()
(if (> (hash-table-count font-lock-pending-buffer-table) 0)
(font-lock-fontify-pending-extents))
(progn (quote font-lock-pre-idle-hook) (if (> (hash-table-count
font-lock-pending-buffer-table) 0) (font-lock-fontify-pending-extents)))
(lambda nil (progn (quote font-lock-pre-idle-hook) (if (> (hash-table-count
font-lock-pending-buffer-table) 0) (font-lock-fontify-pending-extents))))()
# (unwind-protect ...)
call-with-condition-handler((lambda (__call_trapping_errors_arg__) (let ((errstr
(error-message-string __call_trapping_errors_arg__))) (lwarn (quote general) (quote
warning) "Error in %s: %s\n\nBacktrace follows:\n\n%s" "unknown"
errstr (backtrace-in-condition-handler-eliminating-handler (quote
__call_trapping_errors_arg__))))) (lambda nil (progn (quote font-lock-pre-idle-hook) (if
(> (hash-table-count font-lock-pending-buffer-table) 0)
(font-lock-fontify-pending-extents)))))
# (condition-case ... . ((error nil)))
(condition-case nil (call-with-condition-handler (function (lambda
(__call_trapping_errors_arg__) (let ((errstr (error-message-string
__call_trapping_errors_arg__))) (lwarn (quote general) (quote warning) "Error in %s:
%s\n\nBacktrace follows:\n\n%s" "unknown" errstr
(backtrace-in-condition-handler-eliminating-handler (quote
__call_trapping_errors_arg__)))))) (function (lambda nil (progn (quote
font-lock-pre-idle-hook) (if (> (hash-table-count font-lock-pending-buffer-table) 0)
(font-lock-fontify-pending-extents)))))) (error nil))
(with-trapping-errors (quote font-lock-pre-idle-hook) (if (> (hash-table-count
font-lock-pending-buffer-table) 0) (font-lock-fontify-pending-extents)))
font-lock-pre-idle-hook()
# (unwind-protect ...)
# (catch #<INTERNAL OBJECT (XEmacs bug?) (opaque, size=0) 0x8cf3020> ...)
# (unwind-protect ...)
# (unwind-protect ...)
# bind (inhibit-quit)
# (unwind-protect ...)
# (unwind-protect ...)
# bind (inhibit-quit)
(next-event "[internal]")
# (condition-case ... . error)
# (catch top-level ...)
(gdb)
--
--- http://www.coling.uni-freiburg.de/~schauer/ ---
"Fernab jeder hormonellen Verblendung faellt eine frappierende
Aehnlichkeit in Koerperbau, Haltung, Mimik, Feingefuehl und
technischem Sachverstand zwischen Frau und Tyrannosaurus Rex
unmittelbar ins Auge." -- J.E. Guenther in de.alt.sysadmin.recovery
4:34 a.m.
>>>> "HS" == Holger Schauer
<Holger.Schauer(a)gmx.de> writes:
HS> I made a mistake: you have to insert a blank or hit the delete
HS> key afterwards.
Bingo! And down we go. That should give us something to work with.
Thanks!
My time comes in bits and pieces, and nobody else has expressed
interest in the bug yet, so feel free to prod us if you feel like no
progress is being made. Squeaky wheel gets the grease, you know.
--
School of Systems and Information Engineering http://turnbull.sk.tsukuba.ac.jp
University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN
Ask not how you can "do" free software business;
ask what your business can "do for" free software.
8:21 a.m.
"Stephen J. Turnbull" <stephen(a)xemacs.org> writes:
My time comes in bits and pieces, and nobody else has expressed
interest in the bug yet, so feel free to prod us if you feel like no
progress is being made. Squeaky wheel gets the grease, you know.
I am singing alto, and my grease balance so far has been definitely in
the negative.
--
David Kastrup, Kriemhildstr. 15, 44793 Bochum
10:59 a.m.
>>>> "David" == David Kastrup
<dak(a)gnu.org> writes:
David> I am singing alto, and my grease balance so far has been
David> definitely in the negative.
You've gotten far more than your share of grease. You just seem to
think it should taste like hot cocoa with marshmallow.
--
School of Systems and Information Engineering http://turnbull.sk.tsukuba.ac.jp
University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN
Ask not how you can "do" free software business;
ask what your business can "do for" free software.
2:24 p.m.
>>>> "sjt" == Stephen J Turnbull
<stephen(a)xemacs.org> writes:
sjt> Bingo! And down we go. That should give us something to
sjt> work with.
sjt> My time comes in bits and pieces,
It only took a bit. ;-) Try the patch below. As the comment says, I
want to review other uses of the syntax cache for similar bugs. I
also need to check if 21.4 is vulnerable.
diff --git a/src/syntax.c b/src/syntax.c
index be92bb1..e48b7e4 100644
--- a/src/syntax.c
+++ b/src/syntax.c
＠＠ -389,14 +389,20 ＠＠ signal_syntax_table_extent_changed (EXTE
if (BUFFERP (buffer))
{
struct syntax_cache *cache = XBUFFER (buffer)->syntax_cache;
- Bytexpos start = extent_endpoint_byte (extent, 0);
- Bytexpos end = extent_endpoint_byte (extent, 1);
- Bytexpos start2 = byte_marker_position (cache->start);
- Bytexpos end2 = byte_marker_position (cache->end);
- /* If the extent is entirely before or entirely after the cache range,
- it doesn't overlap. Otherwise, invalidate the range. */
- if (!(end < start2 || start > end2))
- reset_buffer_cache_range (cache, buffer);
+ /* #### REVIEW FOR OTHER PLACES THIS BUG CAN STRIKE */
+ /* This can get called before the buffer's cache gets used, eg in
+ cperl mode. Cf on xemacs-beta. */
+ if (!NILP (cache->start))
+ {
+ Bytexpos start = extent_endpoint_byte (extent, 0);
+ Bytexpos end = extent_endpoint_byte (extent, 1);
+ Bytexpos start2 = byte_marker_position (cache->start);
+ Bytexpos end2 = byte_marker_position (cache->end);
+ /* If the extent is entirely before or entirely after the cache
+ range, it doesn't overlap. Otherwise, invalidate the range. */
+ if (!(end < start2 || start > end2))
+ reset_buffer_cache_range (cache, buffer);
+ }
}
}
--
School of Systems and Information Engineering http://turnbull.sk.tsukuba.ac.jp
University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN
Ask not how you can "do" free software business;
ask what your business can "do for" free software.
7:55 p.m.
On 4552 September 1993, Stephen J. Turnbull wrote:
>>>>> "sjt" == Stephen J Turnbull
<stephen(a)xemacs.org> writes:
sjt> Bingo! And down we go. That should give us something
to
sjt> work with.
sjt> My time comes in bits and pieces,
It only took a bit. ;-) Try the patch below.
Fine, it seems to fix the problem.
As the comment says, I want to review other uses of the syntax cache
for similar bugs. I also need to check if 21.4 is vulnerable.
I just tried my reciepe on 21.4.16 with Mule and couldn't trigger the
crash, so for the moment I would conclude it's not in 21.4.
Thanks a lot!
Holger
--
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participants (3)
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David Kastrup -
Holger Schauer -
Stephen J. Turnbull