This bug report will be sent to the XEmacs Development Team, not to your local site managers!! Please write in English, because the XEmacs maintainers do not have translators to read other languages for them. In XEmacs 21.2 (beta31) "Iris" [Lucid] (sparc-sun-solaris2.6, Mule) of Tue Mar 14 2000 on inss24 configured using `configure --prefix=/usr/users/kaage/lib/xemacs --dynamic=yes --with-dialogs=athena --with-site-lisp --with-mule' Please describe exactly what actions triggered the bug and the precise symptoms of the bug: Emacs was idle when I moved the mouse into a frame and clicked the left mouse button. This seemed to cause the crash. BTW, the crash starts might has been triggered in x_update_scrollbar_instance_status(). However, I have turned off scrollbars. Lisp backtrace follows: # (condition-case ... . error) # (catch top-level ...) GDB backtrace follows: #0 0xef10800c in _libc_kill () from /lib/libc.so.1 (gdb) where #0 0xef10800c in _libc_kill () from /lib/libc.so.1 #1 0xa398c in fatal_error_signal (sig=11) at emacs.c:272 #2 <signal handler called> #3 0xef3a5d30 in XtIsManaged () from /lib/libXt.so.4 #4 0xcd008 in x_update_scrollbar_instance_status (w=0xb68000, active=1, size=0, instance=0xf26180) at scrollbar-x.c:250 #5 0xc1e14 in update_window_scrollbars (w=0xb68000, mirror=0xa7d080, active=1, horiz_only=15884672) at scrollbar.c:293 #6 0x1b069c in redisplay_output_window (w=0xb68000) at redisplay-output.c:2270 #7 0x1a073c in redisplay_window (window=11960320, skip_selected=6787) at redisplay.c:6198 #8 0x1a0da8 in redisplay_frame (f=0xa31c00, preemption_check=0) at redisplay.c:6415 #9 0x1a1014 in redisplay_device (d=0x634200, automatic=10689536) at redisplay.c:6493 #10 0x1a1594 in redisplay_without_hooks () at redisplay.c:6582 #11 0x1a1814 in redisplay () at redisplay.c:6639 #12 0xfc75c in Fnext_event (event=7767296, prompt=3123204) at event-stream.c:2173 #13 0x881d8 in Fcommand_loop_1 () at cmdloop.c:566 #14 0x87f28 in command_loop_1 (dummy=3123204) at cmdloop.c:490 #15 0xa9cfc in condition_case_1 (handlers=3123300, bfun=0x87edc <command_loop_1>, barg=3123204, hfun=0x8738c <cmd_error>, ---Type <return> to continue, or q <return> to quit--- harg=3123204) at eval.c:1644 #16 0x874a0 in command_loop_3 () at cmdloop.c:252 #17 0x874c0 in command_loop_2 (dummy=3123204) at cmdloop.c:263 #18 0xa97e4 in internal_catch (tag=3205364, func=0x874b4 <command_loop_2>, arg=3123204, threw=0x0) at eval.c:1310 #19 0x87824 in initial_command_loop (load_me=554164) at cmdloop.c:301 #20 0xa4fb4 in sort_args (argc=2932736, argv=0xeffff164) at emacs.c:1828 (gdb)