xemacs core dump with "Bus Error" message. Here is the dump of the gdb trace hongche＠twinpeaks<hongche>% gdb /usr/local/bin/xemacs-21.1.12 xemacs-21.1.12.core GNU gdb 4.18 Copyright 1998 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-unknown-freebsd"... (no debugging symbols found)... Core was generated by `xemacs-21.1.12'. Program terminated with signal 10, Bus error. Reading symbols from /usr/X11R6/lib/libXaw.so.6... (no debugging symbols found)...done. Reading symbols from /usr/local/lib/libtiff.so.4... (no debugging symbols found)...done. Reading symbols from /usr/local/lib/libpng.so.4... (no debugging symbols found)...done. Reading symbols from /usr/local/lib/libjpeg.so.9... (no debugging symbols found)...done. Reading symbols from /usr/lib/libz.so.2...(no debugging symbols found)...done. Reading symbols from /usr/local/lib/libXpm.so.4... (no debugging symbols found)...done. Reading symbols from /usr/X11R6/lib/libXmu.so.6... (no debugging symbols found)...done. ---Type <return> to continue, or q <return> to quit--- Reading symbols from /usr/X11R6/lib/libXt.so.6... (no debugging symbols found)...done. Reading symbols from /usr/X11R6/lib/libXext.so.6... (no debugging symbols found)...done. Reading symbols from /usr/X11R6/lib/libX11.so.6... (no debugging symbols found)...done. Reading symbols from /usr/X11R6/lib/libSM.so.6... (no debugging symbols found)...done. Reading symbols from /usr/X11R6/lib/libICE.so.6... (no debugging symbols found)...done. Reading symbols from /usr/lib/libncurses.so.5...(no debugging symbols found)... done. Reading symbols from /usr/lib/libkvm.so.2...(no debugging symbols found)... done. Reading symbols from /usr/lib/libm.so.2...(no debugging symbols found)...done. Reading symbols from /usr/lib/libutil.so.3...(no debugging symbols found)... done. Reading symbols from /usr/lib/libxpg4.so.3...(no debugging symbols found)... done. Reading symbols from /usr/lib/libc.so.4...(no debugging symbols found)...done. Reading symbols from /usr/X11R6/lib/libXThrStub.so.6... (no debugging symbols found)...done. Reading symbols from /usr/libexec/ld-elf.so.1...(no debugging symbols found)... ---Type <return> to continue, or q <return> to quit--- done. #0 0x28403108 in kill () from /usr/lib/libc.so.4 (gdb) where #0 0x28403108 in kill () from /usr/lib/libc.so.4 #1 0x8070b50 in XMapRaised () #2 0x9fbfffac in ?? () #3 0x8051c0b in XMapRaised () #4 0x8051bd4 in XMapRaised () #5 0x80531a1 in XMapRaised () #6 0x807676b in XMapRaised () #7 0x8076b5f in XMapRaised () #8 0x8059bd1 in XMapRaised () #9 0x807652a in XMapRaised () #10 0x807421b in XMapRaised () #11 0x80762db in XMapRaised () #12 0x80cd1f1 in matherr () #13 0x80cc35b in matherr () #14 0x8076a72 in XMapRaised () #15 0x8076b5f in XMapRaised () #16 0x8059bd1 in XMapRaised () #17 0x807748e in XMapRaised () #18 0x8076b19 in XMapRaised () #19 0x8076b5f in XMapRaised () #20 0x8059bd1 in XMapRaised () #21 0x807652a in XMapRaised () #22 0x80748d8 in XMapRaised () ---Type <return> to continue, or q <return> to quit--- #23 0x8074a39 in XMapRaised () #24 0x8059fbe in XMapRaised () #25 0x807748e in XMapRaised () #26 0x8076b19 in XMapRaised () #27 0x8076b5f in XMapRaised () #28 0x807796a in XMapRaised () #29 0x80b1691 in matherr () #30 0x80b186c in matherr () #31 0x8076a13 in XMapRaised () #32 0x8076b5f in XMapRaised () #33 0x8059bd1 in XMapRaised () #34 0x807748e in XMapRaised () #35 0x8076b19 in XMapRaised () #36 0x8076b5f in XMapRaised () #37 0x8059bd1 in XMapRaised () #38 0x807748e in XMapRaised () #39 0x8076b19 in XMapRaised () #40 0x8076b5f in XMapRaised () #41 0x8059bd1 in XMapRaised () #42 0x807748e in XMapRaised () #43 0x8077151 in XMapRaised () #44 0x80766b3 in XMapRaised () #45 0x80748d8 in XMapRaised () ---Type <return> to continue, or q <return> to quit--- #46 0x805f4a6 in XMapRaised () #47 0x80745f0 in XMapRaised () #48 0x805f57e in XMapRaised () #49 0x80719a3 in XMapRaised () #50 0x807202a in XMapRaised () #51 0x804eae9 in XMapRaised () (gdb)