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In XEmacs 21.2 (beta32) "Kastor & Polydeukes" [Lucid] (i686-pc-linux, Mule) of Tue Apr 11 2000 on vx500-paulw configured using `configure --prefix=/usr/local/stow/xemacs_cvs --with-mule --package-path=/usr/local/lib/xemacs --with-site-lisp=yes --with-clash-detection --without-prefix' Please describe exactly what actions triggered the bug and the precise symptoms of the bug: when comparing two files I get the following error: Fatal error: assertion failed, file indent.c, line 628, elt >= 0 This error appears to happen whenever I compare any two files using the menubar item. here is the lisp unwind # (unwind-protect ...) sit-for(0) # bind (window-min-height ctl-frame-iconified-p dont-iconify-ctl-frame deiconi fy-ctl-frame ctl-frame old-ctl-frame lines fheight fwidth adjusted-parameters de signated-minibuffer-frame ctl-buffer) ediff-setup-control-frame(#<buffer "*Ediff Control Panel*"> #<x-frame "emacs" 0x2624>) # bind (done-C done-B done-A designated-minibuffer-frame wind-B-start wind-A-s tart use-same-frame orig-wind three-way-comparison split-window-function force-o ne-frame ctl-frame-exists-p frame-C frame-B frame-A wind-C wind-B wind-A window- min-height control-buf buf-C buf-B buf-A) ediff-setup-windows-multiframe-compare(#<buffer "unixinst.mak"> #<buffer "ui"> nil #<buffer "*Ediff Control Panel*">) # bind (control-buf buf-C buf-B buf-A) ediff-setup-windows-multiframe(#<buffer "unixinst.mak"> #<buffer "ui"> nil #<b uffer "*Ediff Control Panel*">) # bind (control-buffer buffer-C buffer-B buffer-A) ediff-setup-windows(#<buffer "unixinst.mak"> #<buffer "ui"> nil #<buffer "*Edi ff Control Panel*">) # (unwind-protect ...) # bind (control-buffer control-buffer-name merge-buffer-file setup-parameters startup-hooks file-C buffer-C file-B buffer-B file-A buffer-A) ediff-setup(#<buffer "unixinst.mak"> "/tmp/unixinst.mak" #<buffer "ui"> "/tmp/ ui" nil nil ((lambda nil (delete-file "/tmp/unixinst.mak") (delete-file "/tmp/ui ") (if ... ...))) ((ediff-job-name . ediff-buffers)) nil) # bind (file-C file-B file-A buf-C-file-name buf-C-is-alive buf-B-file-name bu f-A-file-name merge-buffer-file job-name startup-hooks buf-C buf-B buf-A) ediff-buffers-internal("unixinst.mak" "ui" nil nil ediff-buffers) # bind (job-name startup-hooks buffer-B buffer-A) #<compiled-function (buffer-A buffer-B &optional startup-hooks job-name) "...( 14)" [job-name ediff-buffers ediff-buffers-internal buffer-A buffer-B nil startu p-hooks] 6 ("/usr/local/lib/xemacs/xemacs-packages/lisp/ediff/ediff.elc" . 4813) (let (bf) (list ... ...))>("unixinst.mak" "ui") call-interactively(ediff-buffers) # (condition-case ... . error) # (catch top-level ...) here is the C stacktrace.... #0 0x402f7c11 in __kill () from /lib/libc.so.6 #1 0x80c0249 in fatal_error_signal (sig=6) at emacs.c:293 #2 0x402f7b18 in __restore () at ../sysdeps/unix/sysv/linux/i386/sigaction.c:125 #3 0x402f9053 in abort () at ../sysdeps/generic/abort.c:88 #4 0x80c01ae in assert_failed (file=0x826e5eb "indent.c", line=628, expr=0x826e727 "elt >= 0") at emacs.c:2754 #5 0x8166764 in vmotion_1 (w=0x8864f30, orig=1, vtarget=1, ret_vpos=0x0, ret_vpix=0x0) at indent.c:628 #6 0x816739b in vmotion (w=0x8864f30, orig=1, vtarget=1, ret_vpos=0x0) at indent.c:700 #7 0x819cddf in redisplay_window (window=143019824, skip_selected=0) at redisplay.c:6193 #8 0x819d3cd in redisplay_frame (f=0x88ce7a8, preemption_check=0) at redisplay.c:6455 #9 0x819d5b8 in redisplay_device (d=0x845e948, automatic=1) at redisplay.c:6533 #10 0x819d955 in redisplay_without_hooks () at redisplay.c:6622 #11 0x81a46e8 in redisplay () at redisplay.c:6679 #12 0x8110858 in Fsit_for (seconds=1, nodisplay=137229844) at event-stream.c:2806 #13 0x80c52d9 in Ffuncall (nargs=2, args=0xbfffeb58) at eval.c:3218 #14 0x80962e6 in execute_optimized_program ( program=0x8a88e18 "=c0=c1\211\211\211\211\211\211\211\211\032\e\034\035\036\006\036\a\036\b\036\t\036\n\036\013\016\f=ab#=cd\016\f!=ab\035=ce=cd\016\f!!=ab\025r\016\fq\210\016\017=ab\005=d0=c1!\210=d1=d2!\210)=aa\f\016\023=d4a=ac\006=d5\016\026!\210\016\f=ab\031=cd\016\f!=ab\023=ce=cd\016\f!!=ab\013r\016\fq\210\016\027)=aa\013\016\023=d4a=ae\005=d5\016\026!\026\006\016\f=ab*=cd\016\f!=ab$=ce=cd\016\f!!=ab\034r\016\fq\210=d8\016\006!=ab\005\016\006=aa\005=d9\016\032!\211\026\a\026\027)=aa\f\016\023=d4a=ac\006=d5\016\026!\210\016\a\036\e=dc =ad\027=d8\016\e!=ad\021\016\017=ab\a=dd\016\e!=aa\a=de\016\e!=df"..., stack_depth=11, constants_data=0x8a806a8) at bytecode.c:747 #15 0x8095eb9 in funcall_compiled_function (fun=144693904, nargs=2, args=0xbfffec74) at bytecode.c:519 #16 0x80c548f in Ffuncall (nargs=3, args=0xbfffec70) at eval.c:3253 #17 0x80962e6 in execute_optimized_program ( program=0x8a78718 "=c0=c1!\210=c2\e=c4\r!\036\006=c4\016\a!\036\b=c4\016\t!\036\n\016\006=ad\005=cb\016\006!\036\f\016\b=ad\005=cb\016\b!\036\r\016\n=ad\005=cb\016\n!\036\016\016\017=ab\e=d0\016\017!=ab\025=d1=d0\016\017!!=ab\rr\016\017q\210=d2\016\023!)=aa\013\016\024=d5a=ae\005=d6\016\027!\036\030\016\017=ab\031=d0\016\017!=ab\023=d1=d0\016\017!!=ab\013r\016\017q\210\016\031)=aa\013\016\024=d5a=ae\005=d6\016\027!\036\032\016\017=ab\031=d0\016\017!=ab\023=d1=d0\016\017!!=ab\013r\016\017q\210\016\e)=aa\013\016\024=d5a=ae\005=d6\016\027!\036\034\016\017=ab\031=d0\016\017!=ab\023=d1=d0\016\017!!=ab\013r\016\017q\210\016\035"..., stack_depth=3, constants_data=0x8a40860) at bytecode.c:747 #18 0x8095eb9 in funcall_compiled_function (fun=144693764, nargs=4, args=0xbfffed6c) at bytecode.c:519 #19 0x80c548f in Ffuncall (nargs=5, args=0xbfffed68) at eval.c:3253 #20 0x80962e6 in execute_optimized_program ( program=0x8a4db70 "\b=ab\026=c1\b!=ab\021=c2=c1\b!!=ab\nr\bq\210=c3\024)=aa\013\r=c6a=ac\006=c7\016\b!\210\016\t=ab\013=ca\016\013\016\f\016\r\b$\207=ce\016\013\016\f\016\r\b$\20711\231", stack_depth=5, constants_data=0x8a528d8) at bytecode.c:747 #21 0x8095eb9 in funcall_compiled_function (fun=144693708, nargs=4, args=0xbfffee6c) at bytecode.c:519 #22 0x80c548f in Ffuncall (nargs=5, args=0xbfffee68) at eval.c:3253 #23 0x80962e6 in execute_optimized_program ( program=0x8a4da30 "=c0=c1!\210=c2 =c3 a=ab\005=c4=c5!\210=c6 =ac\004=c7\026\b=c9\016\n!=ac1\016\n=ab\031=cb\016\n!=ab\023=cc=cb\016\n!!=ab\013r\016\nq\210\016\b)=aa\013\016\r=cea=ae\005=cf\016\020!\016\021\016\022\016\023\016\n$\210=c0=d4!\207g", stack_depth=5, constants_data=0x8a34d20) at bytecode.c:747 #24 0x8095eb9 in funcall_compiled_function (fun=144693596, nargs=4, args=0xbfffef6c) at bytecode.c:519 #25 0x80c548f in Ffuncall (nargs=5, args=0xbfffef68) at eval.c:3253 #26 0x80962e6 in execute_optimized_program ( program=0x8a21130 "=c0=c1\n!!\022=c0=c1\013!!\023\f;=ab\a=c0=c1\f!!\024\r;=ab(=c0=c1\r!!\025=c6=c7\r!!=ac\n=c8=c9=ca=c7\r!!\"\210=c6\r!=ab\r=cb\r!=ab\b=c8=cc=ca\r!\"\210=cd=ce=cf\"\036\020\016\021=ab\e=d2\016\021!=ab\025=d3=d2\016\021!!=ab\rr\016\021q\210=d4\016\020!)=aa\013\016\025=d6a=ae\005=c8\016\027!\211\036\030\203R\005=d2\016\030!\203K\005=d3=d2\016\030!!\203B\005r\016\030q\210=d9 \210=da=db!\210=da=dc!\210=da=dd!\210=da=de!\210=da=df!\210=da=e0!\210=da=e1!\210=e2=e3!\210\016$=ab\023\016$＠＠\016$＠AL\210\016$A\211\026$=ac=ef\016%=e6s\026"..., stack_depth=7, constants_data=0x89f7928) at bytecode.c:747 #27 0x8095eb9 in funcall_compiled_function (fun=144695500, nargs=9, args=0xbffff074) at bytecode.c:519 #28 0x80c548f in Ffuncall (nargs=10, args=0xbffff070) at eval.c:3253 #29 0x80962e6 in execute_optimized_program ( program=0x8655008 "=c0=c1\n!!\e=c0=c1\f!!\035\016\006=ad\r=c1\016\006!=ad\a=c7=c1\016\006!!\211\036\b=ad\006=c0=c1\f!!\036\t=ca\036\013=ca\036\f=ca\036\r\n=ab\r=c1\n!=ab\b=c7=c1\n!!=ac\006=ce=cf\n\"\210\f=ab\r=c1\f!=ab\b=c7=c1\f!!=ac\006=ce=cf\f\"\210\016\020\036\021\016\022=ab\013\016\b=ac\a=ce=cf\016\006\"\210)\013;=ab\005=d3\013!\023\r;=ab\005=d3\r!\025\016\t;=ab\a=d3\016\t!\026\t=d4\n\013\"\026\013=d4\f\r\"\026\f\016\b=ab\t=d4\016\006\016\t\"\026\r=d5=c1\n!\016\013=c1\f!\016\f\016\b=ad\005=c1\016\006!\016\r=d6=ca=d7\016\013D=d7\016\fD=d8=d9\016\rD=d7\016\rDE"..., stack_depth=16, constants_data=0x8a363b0) at bytecode.c:747 #30 0x8095eb9 in funcall_compiled_function (fun=144923556, nargs=5, args=0xbffff1a0) at bytecode.c:519 #31 0x80c548f in Ffuncall (nargs=6, args=0xbffff19c) at eval.c:3253 #32 0x80962e6 in execute_optimized_program ( program=0x8662398 "\b=ac\003=c1\020=c2\013\f=c5\016\006\b%\207", stack_depth=6, constants_data=0x89e0940) at bytecode.c:747 #33 0x8095eb9 in funcall_compiled_function (fun=144923500, nargs=2, args=0xbffff2a0) at bytecode.c:519 #34 0x80c548f in Ffuncall (nargs=3, args=0xbffff29c) at eval.c:3253 #35 0x80c5b04 in Fapply (nargs=2, args=0xbffff2dc) at eval.c:3488 #36 0x80c8ee9 in apply1 (fn=144923500, arg=145341048) at eval.c:3841 #37 0x809a595 in Fcall_interactively (function=140040292, record_flag=137229844, keys=137229844) at callint.c:394 #38 0x80c52ed in Ffuncall (nargs=2, args=0xbffff4b8) at eval.c:3218 #39 0x80c8f80 in call1 (fn=137300332, arg0=140040292) at eval.c:3867 #40 0x81125b9 in execute_command_event (command_builder=0x83ace38, event=145527432) at event-stream.c:3832 #41 0x81132a8 in Fdispatch_event (event=145527432) at event-stream.c:4203 #42 0x80a46ab in Fcommand_loop_1 () at cmdloop.c:575 #43 0x80a491d in command_loop_1 (dummy=137229844) at cmdloop.c:490 #44 0x80c9b0b in condition_case_1 (handlers=137229940, bfun=0x80a48e0 <command_loop_1>, barg=137229844, hfun=0x80a3bc0 <cmd_error>, harg=137229844) at eval.c:1644 #45 0x80a4a1c in command_loop_2 (dummy=137229844) at cmdloop.c:252 #46 0x80c99d9 in internal_catch (tag=137303964, func=0x80a49e0 <command_loop_2>, arg=137229844, threw=0x0) at eval.c:1310 #47 0x80a3f8d in initial_command_loop (load_me=137229844) at cmdloop.c:301 #48 0x80be6b7 in xemacs_21_2_b32_i686_pc_linux (argc=1, argv=0xbffff834, envp=0xbffff83c, restart=0) at emacs.c:1873 #49 0x80c0498 in main (argc=1, argv=0xbffff834, envp=0xbffff83c) #50 0x402f1313 in __libc_start_main (main=0x80c0390 <main>, argc=1, argv=0xbffff834, init=0x808193c <_init>, fini=0x822d8b0 <_fini>, rtld_fini=0x4000ac70 <_dl_fini>, stack_end=0xbffff82c) at ../sysdeps/generic/libc-start.c:90