I was editing a minibuf prompt, which had a default response that I was altering. I had backed up to the first character in the minibuf, a comma, and hit M-BS a last time (after deleting several words beforehand) to eliminate it. (Specifically, a Keywords: specification in a reply in Gnus.) Program received signal SIGABRT, Aborted. 0x2ad2a811 in __kill () (gdb) bt #0 0x2ad2a811 in __kill () #1 0x2ad2a63f in raise (sig=6) at ../sysdeps/posix/raise.c:27 #2 0x2ad2b84f in abort () at ../sysdeps/generic/abort.c:83 #3 0x808e0ef in assert_failed (file=0x8221d38 "insdel.c", line=607, expr=0x8221dbb "( newmin) > BI_BUF_BEG (buf) && newmin <= BI_BUF_Z (buf)") at emacs.c:2672 #4 0x81360f3 in bufpos_to_bytind_func (buf=0x8318ee8, x=0) at insdel.c:607 #5 0x8136aa7 in bufpos_to_bytind (buf=0x8318ee8, x=0) at buffer.h:986 #6 0x81a1b08 in scan_words (buf=0x8318ee8, from=1, count=-1) at syntax.c:427 #7 0x81a1e3e in Fforward_word (count=-1, buffer=137162676) at syntax.c:476 #8 0x8064135 in execute_rare_opcode (stack_ptr=0x7fffe8a0, program_ptr=0x8984eb1 "\210`)\"\207Ú*à\004", opcode=Bforward_word) at bytecode.c:1390 #9 0x80631a8 in execute_optimized_program ( program=0x8984eac "À`\212\tv\210`)\"\207Ú*à\004", stack_depth=3, constants_data=0x83e3740) at bytecode.c:657 #10 0x8062d15 in funcall_compiled_function (fun=138266820, nargs=1, args=0x7fffe9a0) at bytecode.c:523 #11 0x8094dcd in Ffuncall (nargs=2, args=0x7fffe99c) at eval.c:3221 #12 0x8063404 in execute_optimized_program ( program=0x8b1a9c4 "À\t[!\207N\230\b", stack_depth=2, constants_data=0x83e3f60) at bytecode.c:747 #13 0x8062d15 in funcall_compiled_function (fun=138266848, nargs=1, args=0x7fffeaa4) at bytecode.c:523 #14 0x8094dcd in Ffuncall (nargs=2, args=0x7fffeaa0) at eval.c:3221 #15 0x8069a1a in Fcall_interactively (function=138233844, record_flag=137162676, keys=137162676) at callint.c:949 #16 0x8093457 in Fcommand_execute (cmd=138233844, record=137162676, keys=137162676) at eval.c:2623 #17 0x80e1616 in execute_command_event (command_builder=0x8361868, event=145620480) at event-stream.c:4345 #18 0x80e2452 in Fdispatch_event (event=145620480) at event-stream.c:4684 #19 0x8073320 in Fcommand_loop_1 () at cmdloop.c:578 #20 0x807309d in command_loop_1 (dummy=137162676) at cmdloop.c:493 #21 0x8091785 in condition_case_1 (handlers=137162772, bfun=0x807304c <command_loop_1>, barg=137162676, hfun=0x80724d0 <cmd_error>, harg=137162676) at eval.c:1640 #22 0x8072994 in call_command_loop (catch_errors=137162700) at cmdloop.c:255 #23 0x81537bf in Fread_minibuffer_internal (prompt=150105212) at minibuf.c:188 #24 0x8094c60 in Ffuncall (nargs=2, args=0x7fffee10) at eval.c:3189 #25 0x8063404 in execute_optimized_program ( program=0x7fffee5c "À Á V«\013Â\211\e\034Å\016\006!*\207Å\016\006!\207Ô*ÌfÚ* $Ú*\230P$\b(]£\b\004Å$\b8$Ú*´ï,\b\"", stack_depth=2, constants_data=0x84022a8) at bytecode.c:747 #26 0x806748c in Fbyte_code (instructions=138373516, constants=138420888, stack_depth=5) at bytecode.c:2406 #27 0x809423a in Feval (form=138419868) at eval.c:2986 #28 0x8091360 in internal_catch (tag=137250916, func=0x8093980 <Feval>, ---Type <return> to continue, or q <return> to quit--- arg=138419868, threw=0x0) at eval.c:1315 #29 0x8063f34 in execute_rare_opcode (stack_ptr=0x7ffff08c, program_ptr=0x8c34c1c "æa«\f\201H", opcode=Bcatch) at bytecode.c:1253 #30 0x80631a8 in execute_optimized_program ( program=0x8c34aac "\b¬\022Á ÂV«\fÃ Ä a«\005ÅÆ!\210\016\a«\021\016\aÂV«\013Á \016\aY«\004È \210\016\t«\"\016\t9«\017Ê\016\t!¬\027ÅË\016\t\"\210ª\017Ê\016\t＠!¬\bÅË\016\t＠\"\210Ì «\tÍÎÏ\016\020!\"\210\016\021\036\022à \036\023Ô \036\025Ä \036\026Á Âa«\a×\016\026!ª\bØÙÚÁ \"!\036\eÜ\016\026!\211\036\035Ô a?­\005Þ\016\035!\036\037Þ \036 \016\t\036!â\216ã\016\e!q\210\016\022\026\021äå!\210æ\026%äç!\210äè!\210äé!\210ê\026'ë\026(\016,«\025äí!\210\016-"..., stack_depth=6, constants_data=0x8402358) at bytecode.c:657 #31 0x8062d15 in funcall_compiled_function (fun=138421444, nargs=5, args=0x7ffff19c) at bytecode.c:523 #32 0x8094dcd in Ffuncall (nargs=6, args=0x7ffff198) at eval.c:3221 #33 0x8063404 in execute_optimized_program ( program=0x8a393dc "À\031Â\013\f\rÀ\016\006%)\207", stack_depth=6, constants_data=0x8403108) at bytecode.c:747 #34 0x8062d15 in funcall_compiled_function (fun=138422228, nargs=2, args=0x7ffff2ac) at bytecode.c:523 #35 0x8094dcd in Ffuncall (nargs=3, args=0x7ffff2a8) at eval.c:3221 #36 0x8063404 in execute_optimized_program ( program=0x8876e2c "\bÁa«\003Â\020\bÂa¬\013\bÃa¬\006\bÄa«\037\r«\030\r\036\006ÇÈ\016\006\"«\t\016\006É\225ÄOª\003\016\006)ª\002Ê\025ª\n\bËa«\005Ì\r!\025Í\016\016!ÏÐ\016\021\227\"Ä\036\022\036\021\036\016\016\023«/ÔÏÕ\016\026×a«\004ت\n\016\026;«\004Ùª\002Ú\016\021\016\016ÉW«\004Ûª\002Ü$\r§«\006Ý\r!ª\002\r\"\025ÏÐ\r\"\025Þß\016\021\016 \"8áa«\005â\r!\025\016\026×a\204æ", stack_depth=7, constants_data=0x8a1bd18) at bytecode.c:747 #37 0x8062d15 in funcall_compiled_function (fun=144704532, nargs=8, args=0x7ffff3c0) at bytecode.c:523 #38 0x8094dcd in Ffuncall (nargs=9, args=0x7ffff3bc) at eval.c:3221 #39 0x8063404 in execute_optimized_program ( program=0x8c17db4 "À\t!\211\032ÃW«\004Ī\002Å\036\006\nÃV\036\aÈ\036\tÊ\036\013\016\f\036\rÎÏ ÐEÑÒE\036\023\016\024\036\025\016\026­\a×\016\026!ÃH\036\030\016\031­\a×\016\031!ÃH\036\032\016\e­\a×\016\e!ÃH\036\034Ý\036\036Ý\036\037Ý\036 Ý\036!Ý\036\"ã\216\016\030¬>\016\025«\räå!\210æç\016\006\"\210ª\023æè\016\a«\004éª\002êëì\016\tí##\210î \211\026\030ïU¬\a\016\030ðU«ÌÝ\026\030ñò\016\tå#\210ªÀó \210\016\030\227\016\t·\211\026\036¬\023\016\025«\013ôõ\016\006\016\030#\210ª\005ôö!\210\016\030\227\016\030U"..., stack_depth=10, constants_data=0x8a199a8) at bytecode.c:747 #40 0x8062d15 in funcall_compiled_function (fun=144704392, nargs=2, args=0x7ffff4dc) at bytecode.c:523 #41 0x8094dcd in Ffuncall (nargs=3, args=0x7ffff4d8) at eval.c:3221 #42 0x80954ae in Fapply (nargs=2, args=0x7ffff520) at eval.c:3456 #43 0x8095cd2 in apply1 (fn=144704392, arg=150660704) at eval.c:3808 #44 0x8067ee4 in Fcall_interactively (function=141580252, record_flag=137162676, keys=137162676) at callint.c:397 #45 0x8093457 in Fcommand_execute (cmd=141580252, record=137162676, keys=137162676) at eval.c:2623 ---Type <return> to continue, or q <return> to quit--- #46 0x80e1616 in execute_command_event (command_builder=0x8361868, event=143865704) at event-stream.c:4345 #47 0x80e2452 in Fdispatch_event (event=143865704) at event-stream.c:4684 #48 0x8073320 in Fcommand_loop_1 () at cmdloop.c:578 #49 0x807309d in command_loop_1 (dummy=137162676) at cmdloop.c:493 #50 0x8091785 in condition_case_1 (handlers=137162772, bfun=0x807304c <command_loop_1>, barg=137162676, hfun=0x80724d0 <cmd_error>, harg=137162676) at eval.c:1640 #51 0x8073538 in command_loop_2 (dummy=137162676) at cmdloop.c:255 #52 0x8091360 in internal_catch (tag=137236964, func=0x8073504 <command_loop_2>, arg=137162676, threw=0x0) at eval.c:1315 #53 0x8072937 in initial_command_loop (load_me=137162676) at cmdloop.c:304 #54 0x808cfa1 in xemacs_21_2_b19_i686_pc_linux (argc=5, argv=0x7ffff994, envp=0x7ffff9ac, restart=0) at emacs.c:1763 #55 0x808d72d in main (argc=5, argv=0x7ffff994, envp=0x7ffff9ac) at emacs.c:2188 (gdb) uname -a: Linux beaver.jprc.com 2.2.10-ac10 #1 SMP Tue Jul 13 13:23:27 EDT 1999 i686 unknown ./configure '--with-pop' '--with-mule' '--with-png' XEmacs 21.2-b19 "Shinjuku" configured for `i686-pc-linux'. Where should the build process find the source code? /home/karl/src/x/xemacs-21/xemacs-21.2.19 What installation prefix should install use? /usr/local What operating system and machine description files should XEmacs use? `s/linux.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 (Using Doug Lea's new malloc from the GNU C Library.) 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 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 support for TIFF image handling. Compiling in support for X-Face message headers. Compiling in native sound support. Compiling in support for Berkeley DB. Compiling in support for GNU DBM. Compiling in support for ncurses. Compiling in support for GPM (General Purpose Mouse). Compiling in Mule (multi-lingual) support. Compiling in XIM (X11R5+ I18N input method) support. Using raw Xlib to provide XIM support. Compiling in support for proper WM_COMMAND handling. Using Lucid menubars. Using Lucid scrollbars. Using Athena dialog boxes. Compiling in DSO module support. movemail will use "dot-locking" for locking mail spool files. Using POP for mail access. Compiling in extra code for debugging. 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: ---------------------------------------------------------