SL Baur <steve(a)xemacs.org&gt; writes: At first I didn't but when I added it nothing changed, so I removed it again. Right now I only have: Sun-1.05-pkg.tar.gz mail-lib-1.10-pkg.tar.gz tooltalk-1.04-pkg.tar.gz xemacs-base-1.18-pkg.tar.gz Oh, I must have missed those (Jason uses x86, right?) I do have the access, but lack the knowledge :-( didn't help! (same backtrace, see below) I ran xemacs from inside dbx and put a breakpoint in print_error_message. - at first everything looks great (I think?!) (dbx) pobj error_object (struct Lisp_Cons *) 7319308 = 0x6faf0c *(struct Lisp_Cons *) 7319308 = { lheader = { type = 6U mark = 0 pure = 0 } car = 5992620 cdr = 7319260 } (dbx) pobj stream (struct Lisp_Symbol *) 5992480 = 0x5b7020 *(struct Lisp_Symbol *) 5992480 = { lheader = { type = 5U mark = 0 pure = 0 } next = (nil) name = 0x4aa9f4 value = 5992480 function = 5719156 obarray = 0 plist = 5992452 } Symbol name: 0x477cb8 "t" - at line 664 "Wrong type argument:" is printed by FPrinc - the first time Fprin1 at line 669 is executed "stringp" is printed (dbx) pobj tail (struct Lisp_Cons *) 7319260 = 0x6faedc *(struct Lisp_Cons *) 7319260 = { lheader = { type = 6U mark = 0 pure = 0 } car = 6072408 cdr = 7319248 } - tail= Fcdr(tail) is executed (dbx) pobj tail (struct Lisp_Cons *) 7319248 = 0x6faed0 *(struct Lisp_Cons *) 7319248 = { lheader = { type = 6U mark = 0 pure = 0 } car = 6067492 cdr = 5992452 } at the next call to FPrin1 at line 669 everything blows up! in FPrin1: (dbx) pobj object warning: subscript out of range Unknown Lisp Object type object = 6067492 I'm not sure what to do next.... (I promise to read the Internals Manual over the weekend :-) ) Gunnar ---------------------------------------------------------------------- (dbx) where [1] 0x4b0360(0x5c9524, 0x5d21e0, 0x1, 0xefffda74, 0x13, 0x0), at 0x4b035f =>[2] print_internal(obj = 6067492, printcharfun = 6103520, escapeflag = 1), line 1203 in "print.c" [3] print_cons(obj = 7315628, printcharfun = 6103520, escapeflag = 1), line 904 in "print.c" [4] print_internal(obj = 7315664, printcharfun = 6103520, escapeflag = 1), line 1203 in "print.c" [5] Fprin1(object = 7315664, stream = 6103520), line 502 in "print.c" [6] Fbacktrace(stream = 6103520, detailed = 5992480), line 4927 in "eval.c" [7] fatal_error_signal(sig = 4), line 244 in "emacs.c" ---- called from signal handler with signal 4 (SIGILL) ------ [8] 0x4b0360(), at 0x4b035f [9] Fprin1(object = 6067492, stream = 5992480), line 502 in "print.c" [10] print_error_message(error_object = 7315664, stream = 5992480), line 669 in "print.c" [11] Fdisplay_error(error_object = 7315664, stream = 5992480), line 700 in "print.c" [12] funcall_recording_as(recorded_as = 6103268, nargs = 2, args = 0xefffe7c8), line 3197 in "eval.c" [13] Ffuncall(nargs = 3, args = 0xefffe7c8), line 3238 in "eval.c" [14] Fbyte_code(bytestr = 5073904, vector = 5074044, maxdepth = 11), line 416 in "bytecode.c" [15] funcall_lambda(fun = 5074248, nargs = 1, arg_vector = 0xefffeb5c), line 3599 in "eval.c" [16] funcall_recording_as(recorded_as = 6070724, nargs = 1, args = 0xefffeb58), line 3200 in "eval.c" [17] Ffuncall(nargs = 2, args = 0xefffeb58), line 3238 in "eval.c" [18] call1(fn = 6070724, arg0 = 7315664), line 3912 in "eval.c" [19] cmd_error(data = 7315664, dummy = 5992452), line 195 in "cmdloop.c" [20] condition_case_1(handlers = 5992564, bfun = 0x100650 = &Feval(Lisp_Object form), barg = 6235724, hfun = 0xa5710 = &`xemacs`cmdloop.c`cmd_error(Lisp_Object data, Lisp_Object dummy), harg = 5992452), line 1636 in "eval.c" [21] top_level_1(dummy = 5992452), line 206 in "cmdloop.c" [22] internal_catch(tag = 6070780, func = 0xa57f0 = &`xemacs`cmdloop.c`top_level_1(Lisp_Object dummy), arg = 5992452, threw = (nil)), line 1328 in "eval.c" [23] initial_command_loop(load_me = 5992452), line 285 in "cmdloop.c" [24] xemacs_21_0_b38_sparc_sun_solaris2_6(argc = 1, argv = 0xefffeffc, envp = 0xeffff004, restart = 0), line 1673 in "emacs.c" [25] main(argc = 1, argv = 0xefffeffc, envp = 0xeffff004), line 2090 in "emacs.c" (dbx)