crash on linux using 21.2-b27

Compiled xemacs is http://www.ted.cmis.csiro.au/~smart/xemacs-21.2-b27 and core file is http://www.ted.cmis.csiro.au/~smart/core. I was editing an erlang file (www.erlang.org) using their .elc. I had the same file open in two windows. recover-session requires dired? send bug report is greyed out. Bob (gdb) where #0 0x402c8111 in __kill () #1 0x8084c21 in fatal_error_signal (sig=11) at emacs.c:278 #2 <signal handler called> #3 0x401dca5e in _Xi18n_lock () #4 0x81ac567 in TabsUnhighlight (w=0x84a3a18, event=0xbffff440, params=0x0, num_params=0x40132294) at xlwtabs.c:1221 #5 0x40123e8d in HandleActions () #6 0x40124342 in HandleSimpleState () #7 0x40124851 in _XtTranslateEvent () #8 0x401019f7 in XtDispatchEventToWidget () #9 0x40102406 in _XtDefaultDispatcher () #10 0x40102873 in XtDispatchEvent () #11 0x4010db8f in XtAppProcessEvent () #12 0x81763c0 in emacs_Xt_event_pending_p (user_p=1) at event-Xt.c:2602 #13 0x80b510e in detect_input_pending () at event-stream.c:507 #14 0x80b6d5d in Fnext_event (event=141399092, prompt=136653876) at event-stream.c:2064 #15 0x806af69 in Fcommand_loop_1 () at cmdloop.c:566 #16 0x806b1ad in command_loop_1 (dummy=136653876) at cmdloop.c:490 #17 0x808e5bc in condition_case_1 (handlers=136653972, bfun=0x806b168 <command_loop_1>, barg=136653876, hfun=0x806a370 <cmd_error>, harg=136653876) at eval.c:1629 #18 0x806b28c in command_loop_2 (dummy=136653876) at cmdloop.c:252 #19 0x808e49f in internal_catch (tag=136727828, func=0x806b254 <command_loop_2>, arg=136653876, threw=0x0) at eval.c:1304 #20 0x806a7a4 in initial_command_loop (load_me=136653876) at cmdloop.c:301 #21 0x80831c2 in xemacs_21_2_b27_i686_pc_linux () at emacs.c:1906 #22 0x8084e0f in main () at emacs.c:2331 #23 0x402c1cb3 in __libc_start_main (main=0x8084d10 <main>, argc=20, argv=0xbffff924, init=0x804dc78 <_init>, fini=0x81ae394 <_fini>, rtld_fini=0x4000a350 <_dl_fini>, stack_end=0xbffff91c) at ../sysdeps/generic/libc-start.c:78 (gdb) --=-=-=--