Core Dump in 21.1.3

I'm consistently getting a core dump in 21.1.3 when trying to open a particular compressed tarfile: ftp://prep.ai.mit.edu/gnu/userv/userv-0.64.1.tar.gz. I've included the installation info and a backtrace. I've been unable to reproduce this in a -vanilla xemacs. The compiler used to build this was: gcc version gcc-2.95 19990608 (prerelease). --- Installation Info --- uname -a: SunOS dusk1 5.5.1 Generic sun4m sparc ../../../src/xemacs-21.1-19990616/configure '--prefix=/u/shelton/new/xemacs-21.1-19990616' '--with-gnu-make' '--x-includes=/usr/openwin/include' '--x-libraries=/usr/openwin/lib' '--with-mule=no' '--with-cde=no' '--with-xpm' '--site-includes=/u/shelton/new/include:/sup/include' '--site-libraries=/u/shelton/new/lib:/sup/lib' '--with-dialogs=athena' '--with-session' XEmacs 21.1-p3 "Acadia" configured for `sparc-sun-solaris2.5.1'. Where should the build process find the source code? /u/shelton/new/src/xemacs-21.1-19990616 What installation prefix should install use? /u/shelton/new/xemacs-21.1-19990616 What operating system and machine description files should XEmacs use? `s/sol2.h' and `m/sparc.h' What compiler should XEmacs be built with? /u/shelton/new/egcs-snapshot/bin/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/dt/include /usr/openwin/include Where do we find X Windows libraries? /usr/dt/lib /usr/openwin/lib Additional header files: /u/shelton/new/include /sup/include Additional libraries: /u/shelton/new/lib /sup/lib Runtime library search path: /u/shelton/new/lib:/sup/lib:/usr/dt/lib:/usr/openwin/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 DBM. Compiling in support for ToolTalk. Compiling in support for proper session-management. Using Lucid menubars. Using Lucid scrollbars. Using Athena dialog boxes. Compiling in DLL support. movemail will use "dot-locking" for locking mail spool files. --- Backtrace --- #0 0xeee740d8 in kill () from /usr/lib/libc.so.1 #1 0x72064 in fatal_error_signal (sig=11) at /u/shelton/new/src/xemacs-21.1-19990616/src/emacs.c:263 #2 <signal handler called> #3 0x1167fc in search_buffer (buf=0x7f4600, string=-559700851, bufpos=-291240955, buflim=1031, n=1, RE=-291239917, trt=0x28b4a4 "", inverse_trt=0x28b5ac "", posix=0) at /u/shelton/new/src/xemacs-21.1-19990616/src/search.c:1367 #4 0x115db0 in search_command (string=1612810196, bound=1031, no_error=-1607929828, count=8340992, buffer=-1607929852, direction=1, RE=0, posix=3) at /u/shelton/new/src/xemacs-21.1-19990616/src/search.c:980 #5 0x118c70 in Fsearch_forward (string=1612810196, bound=1031, no_error=-1607929828, count=-1607929852, buffer=-1607929852) at /u/shelton/new/src/xemacs-21.1-19990616/src/search.c:1630 #6 0x76b58 in funcall_recording_as (recorded_as=-268455900, nargs=3, args=0xefffb020) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3193 #7 0x7ae6c in Ffuncall (nargs=4, args=0xefffb020) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3238 #8 0x50e40 in Fbyte_code (bytestr=1612809732, vector=-2145286368, maxdepth=29) at /u/shelton/new/src/xemacs-21.1-19990616/src/bytecode.c:416 #9 0x77e84 in funcall_lambda (fun=539068600, nargs=1, arg_vector=0xefffb94c) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3597 #10 0x76e90 in funcall_recording_as (recorded_as=-268453556, nargs=1, args=0xefffb948) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3214 #11 0x7ae6c in Ffuncall (nargs=2, args=0xefffb948) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3238 #12 0x50e40 in Fbyte_code (bytestr=1612807168, vector=-2145288940, maxdepth=9) at /u/shelton/new/src/xemacs-21.1-19990616/src/bytecode.c:416 #13 0x77e84 in funcall_lambda (fun=539065928, nargs=0, arg_vector=0xefffbe6c) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3597 #14 0x76e90 in funcall_recording_as (recorded_as=-268452244, nargs=0, args=0xefffbe68) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3214 #15 0x7ae6c in Ffuncall (nargs=1, args=0xefffbe68) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3238 #16 0x50e40 in Fbyte_code (bytestr=1612805212, vector=-2145291144, maxdepth=2) at /u/shelton/new/src/xemacs-21.1-19990616/src/bytecode.c:416 #17 0x763f8 in Feval (form=1075934284) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3063 #18 0x73a40 in condition_case_1 (handlers=1075934348, bfun=0x75c04 <Feval>, barg=1075934284, hfun=0x73a8c <run_condition_case_handlers>, harg=-1607590252) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:1653 #19 0x7ac88 in condition_case_3 (bodyform=1075934284, var=-1607590252, handlers=1075934348) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:1715 #20 0x51384 in Fbyte_code (bytestr=1612805124, vector=-2145291224, maxdepth=13) at /u/shelton/new/src/xemacs-21.1-19990616/src/bytecode.c:576 #21 0x77e84 in funcall_lambda (fun=539063804, nargs=1, arg_vector=0xefffcd7c) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3597 #22 0x76e90 in funcall_recording_as (recorded_as=-268448388, nargs=1, args=0xefffcd78) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3214 #23 0x7ae6c in Ffuncall (nargs=2, args=0xefffcd78) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3238 #24 0x50e40 in Fbyte_code (bytestr=1612804136, vector=-2145292076, maxdepth=151) at /u/shelton/new/src/xemacs-21.1-19990616/src/bytecode.c:416 #25 0x77e84 in funcall_lambda (fun=539063164, nargs=2, arg_vector=0xefffd44c) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3597 #26 0x76e90 in funcall_recording_as (recorded_as=-268446644, nargs=2, args=0xefffd448) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3214 #27 0x7ae6c in Ffuncall (nargs=3, args=0xefffd448) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3238 #28 0x50e40 in Fbyte_code (bytestr=1612803176, vector=-2145293072, maxdepth=108) at /u/shelton/new/src/xemacs-21.1-19990616/src/bytecode.c:416 #29 0x763f8 in Feval (form=1075932248) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3063 #30 0x73a40 in condition_case_1 (handlers=1075932816, bfun=0x75c04 <Feval>, barg=1075932248, hfun=0x73a8c <run_condition_case_handlers>, harg=-1607831820) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:1653 #31 0x7ac88 in condition_case_3 (bodyform=1075932248, var=-1607831820, handlers=1075932816) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:1715 #32 0x51384 in Fbyte_code (bytestr=1612802132, vector=-2145293988, maxdepth=244) at /u/shelton/new/src/xemacs-21.1-19990616/src/bytecode.c:576 #33 0x77e84 in funcall_lambda (fun=539062004, nargs=1, arg_vector=0xefffe4e8) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3597 #34 0x76e90 in funcall_recording_as (recorded_as=-268442392, nargs=1, args=0xefffe4e4) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3214 #35 0x7ae6c in Ffuncall (nargs=2, args=0xefffe4e4) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3238 #36 0x50e40 in Fbyte_code (bytestr=1612797604, vector=-2145298700, maxdepth=18) at /u/shelton/new/src/xemacs-21.1-19990616/src/bytecode.c:416 #37 0x77e84 in funcall_lambda (fun=539055888, nargs=2, arg_vector=0xefffe9e4) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3597 #38 0x76e90 in funcall_recording_as (recorded_as=-268441116, nargs=2, args=0xefffe9e0) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3214 #39 0x7ae6c in Ffuncall (nargs=3, args=0xefffe9e0) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:3238 #40 0x5411c in Fcall_interactively (function=-1607604396, record_flag=-1607929852, keys=-1607929852) at /u/shelton/new/src/xemacs-21.1-19990616/src/callint.c:949 #41 0x7563c in Fcommand_execute (cmd=-1607604396, record=-1607929852, keys=-1607929852) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:2584 #42 0x9ec9c in execute_command_event (command_builder=0x3c8980, event=541553456) at /u/shelton/new/src/xemacs-21.1-19990616/src/event-stream.c:4346 #43 0x9f358 in Fdispatch_event (event=541553456) at /u/shelton/new/src/xemacs-21.1-19990616/src/event-stream.c:4637 #44 0x58948 in Fcommand_loop_1 () at /u/shelton/new/src/xemacs-21.1-19990616/src/cmdloop.c:579 #45 0x58b7c in command_loop_1 (dummy=-1607929852) at /u/shelton/new/src/xemacs-21.1-19990616/src/cmdloop.c:494 #46 0x73a40 in condition_case_1 (handlers=-1607929756, bfun=0x58b58 <command_loop_1>, barg=-1607929852, hfun=0x58be0 <cmd_error>, harg=-1607929852) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:1653 #47 0x58cf4 in command_loop_2 (dummy=-1607929852) at /u/shelton/new/src/xemacs-21.1-19990616/src/cmdloop.c:256 #48 0x7ab88 in internal_catch (tag=-1607852204, func=0x58ca8 <command_loop_2>, arg=-1607929852, threw=0x0) at /u/shelton/new/src/xemacs-21.1-19990616/src/eval.c:1328 #49 0x58404 in initial_command_loop (load_me=-1607929852) at /u/shelton/new/src/xemacs-21.1-19990616/src/cmdloop.c:305 #50 0x70ab4 in sort_args (argc=1575936, argv=0xeffff9ec) at /u/shelton/new/src/xemacs-21.1-19990616/src/emacs.c:1714 - vin -- In a minute there is time For decisions and revisions which a minute will reverse. T.S. Eliot