After getting a core dump with 21.2.8, I thought I would try 21.0.60 and see if I had better luck. I also get a core dump with this version. I don't think it's my machine, since I just built 20.4 as well, and it works fine. I've attached a lisp backtrace, a gdb backtrace, and the Installation file. -- Richard Coleman coleman(a)math.gatech.edu Fatal error: assertion failed, file window.h, line 245, RECORD_TYPEP (_obj, lrecord_window) || MARKED_RECORD_P (_obj) Fatal error (6). Your files have been auto-saved. Use `M-x recover-session' to recover them. Please report this bug by running the send-pr script included with XEmacs, or selecting `Send Bug Report' from the help menu. As a last resort send ordinary email to `crashes(a)xemacs.org&#39;. *MAKE SURE* to include the information in the command M-x describe-installation. If at all possible, *please* try to obtain a C stack backtrace; it will help us immensely in determining what went wrong. To do this, locate the core file that was produced as a result of this crash (it's usually called `core' and is located in the directory in which you started the editor, or maybe in your home directory), and type gdb /home/rcoleman/xemacs/xemacs-21.0.60/src/xemacs core then type `where' when the debugger prompt comes up. (If you don't have GDB on your system, you might have DBX, or XDB, or SDB. A similar procedure should work for all of these. Ask your system administrator if you need more help.) Lisp backtrace follows: redisplay-echo-area() # bind (inhibit-read-only zmacs-region-stays stdout-p frame message) raw-append-message("Error in init file: Symbol's function definition is void: display-time" #<x-frame "emacs" 0x8fd> nil) # bind (stdout-p frame message label) append-message(message "Error in init file: Symbol's function definition is void: display-time" nil nil) # bind (stdout-p frame message label) display-message(message "Error in init file: Symbol's function definition is void: display-time") # bind (str args fmt) message("Error in init file: %s" "Symbol's function definition is void: display-time") byte-code("..." [message "Error in init file: %s" error-message-string error display-warning initialization format "An error has occurred while loading %s:\n\n%s\n\nTo ensure normal operation, you should investigate the cause of the error\nin your initialization file and remove it. Use the `-debug-init' option\nto XEmacs to view a complete error backtrace." user-init-file t init-file-had-error] 7) # bind (error debug-on-error debug-on-error-from-init-file debug-on-error-should-be-set debug-on-error-initial) load-init-file() # bind (command-line-args-left) command-line() # (unwind-protect ...) normal-top-level() # (condition-case ... . error) # (catch top-level ...) (gdb) bt #0 0x203e7b61 in ?? () #1 0x44743 in fatal_error_signal (sig=6) at emacs.c:262 #2 0xefbfdfdc in ?? () #3 0x46f5b in assert_failed (file=0x11a87c "window.h", line=245, expr=0x11a83e "RECORD_TYPEP (_obj, lrecord_window) || MARKED_RECORD_P (_obj)") at emacs.c:2608 #4 0x12d696 in Fredisplay_echo_area () at window.h:245 #5 0x4d50a in funcall_recording_as (recorded_as=-1607563140, nargs=0, args=0xefbfc3bc) at eval.c:3197 #6 0x4d785 in Ffuncall (nargs=1, args=0xefbfc3bc) at eval.c:3238 #7 0x198a6 in Fbyte_code (bytestr=1612954684, vector=-2145141644, maxdepth=5) at bytecode.c:416 #8 0x4e6f3 in funcall_lambda (fun=539213024, nargs=3, arg_vector=0xefbfc584) at eval.c:3597 #9 0x4d691 in funcall_recording_as (recorded_as=-1607016668, nargs=3, args=0xefbfc580) at eval.c:3214 #10 0x4d785 in Ffuncall (nargs=4, args=0xefbfc580) at eval.c:3238 #11 0x198a6 in Fbyte_code (bytestr=1612954536, vector=-2145141796, maxdepth=4) at bytecode.c:416 #12 0x4e6f3 in funcall_lambda (fun=539212800, nargs=4, arg_vector=0xefbfc6e8) at eval.c:3597 #13 0x4d691 in funcall_recording_as (recorded_as=-1607565844, nargs=4, args=0xefbfc6e4) at eval.c:3214 #14 0x4d785 in Ffuncall (nargs=5, args=0xefbfc6e4) at eval.c:3238 #15 0x198a6 in Fbyte_code (bytestr=1612954916, vector=-2145141440, maxdepth=5) at bytecode.c:416 #16 0x4e6f3 in funcall_lambda (fun=539213152, nargs=2, arg_vector=0xefbfc888) at eval.c:3597 #17 0x4d691 in funcall_recording_as (recorded_as=-1607565796, nargs=2, args=0xefbfc884) at eval.c:3214 #18 0x4d785 in Ffuncall (nargs=3, args=0xefbfc884) at eval.c:3238 #19 0x198a6 in Fbyte_code (bytestr=1612955216, vector=-2145141124, maxdepth=4) at bytecode.c:416 #20 0x4e6f3 in funcall_lambda (fun=539213476, nargs=2, arg_vector=0xefbfca14) at eval.c:3597 #21 0x4d691 in funcall_recording_as (recorded_as=-1607572396, nargs=2, args=0xefbfca10) at eval.c:3214 #22 0x4d785 in Ffuncall (nargs=3, args=0xefbfca10) at eval.c:3238 #23 0x198a6 in Fbyte_code (bytestr=1613020268, vector=-2145076068, maxdepth=7) at bytecode.c:416 #24 0x4ce3c in Feval (form=1076149340) at eval.c:3063 #25 0x4a6e3 in run_condition_case_handlers (val=1078148508, var=-1607671708) at eval.c:758 #26 0x4a846 in condition_case_3 (bodyform=1076149240, var=-1607671708, handlers=1076149316) at eval.c:1636 #27 0x19c73 in Fbyte_code (bytestr=1613019924, vector=-2145076340, maxdepth=4) at bytecode.c:576 #28 0x4e6f3 in funcall_lambda (fun=539278836, nargs=0, arg_vector=0xefbfd09c) at eval.c:3597 #29 0x4d691 in funcall_recording_as (recorded_as=-1607060348, nargs=0, args=0xefbfd098) at eval.c:3214 #30 0x4d785 in Ffuncall (nargs=1, args=0xefbfd098) at eval.c:3238 #31 0x198a6 in Fbyte_code (bytestr=1613018836, vector=-2145077436, maxdepth=4) at bytecode.c:416 #32 0x4e6f3 in funcall_lambda (fun=539277320, nargs=0, arg_vector=0xefbfd460) at eval.c:3597 #33 0x4d691 in funcall_recording_as (recorded_as=-1607060516, nargs=0, args=0xefbfd45c) at eval.c:3214 #34 0x4d785 in Ffuncall (nargs=1, args=0xefbfd45c) at eval.c:3238 #35 0x198a6 in Fbyte_code (bytestr=1613016916, vector=-2145079288, maxdepth=6) at bytecode.c:416 #36 0x4e6f3 in funcall_lambda (fun=539275724, nargs=0, arg_vector=0xefbfd518) at eval.c:3597 #37 0x4df72 in apply_lambda (fun=539275724, numargs=0, unevalled_args=-1607671804) at eval.c:3501 #38 0x4cfeb in Feval (form=1076952004) at eval.c:3085 #39 0x4a568 in condition_case_1 (handlers=-1607671708, bfun=0x4c434 <Feval>, barg=1076952004, hfun=0x23754 <cmd_error>, harg=-1607671804) at eval.c:1653 #40 0x2493d in top_level_1 (dummy=-1607671804) at cmdloop.c:206 #41 0x4a388 in internal_catch (tag=-1607594132, func=0x24914 <top_level_1>, arg=-1607671804, threw=0x0) at eval.c:1328 #42 0x23901 in initial_command_loop (load_me=-1607671804) at cmdloop.c:285 #43 0x45969 in xemacs_21_0_b60_i386_unknown_freebsd2_2_6 (argc=1, argv=0xefbfd80c, envp=0xefbfd814, restart=0) at emacs.c:1705 #44 0x46322 in main (argc=1, argv=0xefbfd80c, envp=0xefbfd814) at emacs.c:2122 uname -a: FreeBSD phaedrus.cmb.net 2.2.6-RELEASE FreeBSD 2.2.6-RELEASE #0: Wed Mar 25 02:28:49 GMT 1998 jkh＠time.cdrom.com:/usr/src/sys/compile/GENERIC i386 ./configure '--prefix=/home/rcoleman/beta' '--site-includes=/usr/local/include' '--site-libraries=/usr/local/lib' XEmacs 21.0-b60 "Poitou60" configured for `i386-unknown-freebsd2.2.6'. Where should the build process find the source code? /home/rcoleman/xemacs/xemacs-21.0.60 What installation prefix should install use? /home/rcoleman/beta What operating system and machine description files should XEmacs use? `s/freebsd.h' and `m/intel386.h' What compiler should XEmacs be built with? gcc -g -O3 -Wall -Wno-switch Should XEmacs use the GNU version of malloc? yes Should XEmacs use the relocating allocator for buffers? yes What window system should XEmacs use? x11 Where do we find X Windows header files? /usr/X11R6/include Where do we find X Windows libraries? /usr/X11R6/lib Additional header files: /usr/local/include Additional libraries: /usr/local/lib Runtime library search path: /usr/local/lib Compiling in support for XAUTH. Compiling in support for XPM images. Compiling in support for PNG image handling. Compiling in support for (builtin) GIF image handling. Compiling in support for JPEG image handling. Compiling in native sound support. Compiling in support for Berkeley DB. Compiling in support for GNU DBM. Compiling in support for proper session-management. Using Lucid menubars. Using Lucid scrollbars. Using Athena dialog boxes. Compiling in DLL support. movemail will use "flock" for locking mail spool files. Compiling in extra code for debugging. Compiling in code for checking XEmacs memory usage. WARNING: --------------------------------------------------------- WARNING: Compiling in support for runtime error checking. WARNING: XEmacs will run noticeably more slowly as a result. WARNING: Error checking is on by default for XEmacs beta releases. WARNING: ---------------------------------------------------------