Hi Gents, I succeeded in triggering the following assertion: Fatal error: assertion failed, file signal.c, line 730, QUIT called from within redisplay without being properly wrapped I saw this first when trying to switch from a shell buffer which was receiving process output to another buffer via buffers pulldown menu selection. Later when experimenting I found that the assertion can be triggered by just randomly (frantically) clicking on a menubar item (i.e. just pulling the menu-pane down and up again and not selecting any menuitem is sufficient). The important thing is that a process buffer must be on display getting filled at a relatively high rate. When experimenting I used to create a shell process: M-x shell and ran the following shell commands: sh while true; do sleep 0.001; echo 'good by!'; done (The more bytes are echoed, the better. Just echoing 'good by!' makes reproducing the effect impossible on my machine ?!) Then just multi-clicking on the "Buffers" cascade-button triggers the assertion within seconds. This assertion is easily reproduced with optimized as well as debug versions, with today's HEAD version, as well as with a CVS date-tagged version "-D 2005-01-27", i.e. a version having received the above assertion-code about one day before: revision 1.29 date: 2005/01/26 10:33:42; author: ben; state: Exp; lines: +22 -156 Fix some race conditions in redisplay/signal (...) Seems that adding the assertion was a good thing, since at least one bad race still seems to go on somewhere ... Please find more details below, happy debugging, and a a happy new year! Klaus Here is my configure command: configure --with-package-path=/home/klr/xemacs/lib/xemacs/xemacs-packages --infodir=/home/klr/xemacs/xemacs-21.5/info --with-infopath=/home/klr/xemacs/xemacs-packages --with-athena=3d --with-xpm --with-png --with-jpeg --with-tiff --with-gif --with-gpm=yes --with-sound=native --with-pop --with-clash-detection --with-canna=yes --with-wnn=yes --with-xim=xlib --with-database=no --with-postgresql=no --with-ldap=no --with-hesiod=no --with-widgets=athena --with-menubars=lucid --with-scrollbars=lucid --with-dialogs=athena --with-msw=no Lisp backtrace: # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) # (catch #<INTERNAL OBJECT (XEmacs bug?) (opaque, size=0) 0x84a60ac> ...) # (unwind-protect ...) # bind (inhibit-quit) # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) # bind (inhibit-quit) # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) # (unwind-protect ...) ("(in redisplay)" "[internal]") # (unwind-protect ...) sit-for(0) # (unwind-protect ...) # bind (window) #<compiled-function (window) "...(123)" [current selected scroll process comint-scroll-show-maximum-output window window-buffer window-point process-mark t all this others set-window-point pos-visible-in-window-p recenter floatp floor window-height 1 -1 sit-for 0 string] 4>(#<window on "*shell*" 0x3163e>) # bind (walk-windows-current walk-windows-start arg which-devices which-frames minibuf function) walk-windows(#<compiled-function (window) "...(123)" [current selected scroll process comint-scroll-show-maximum-output window window-buffer window-point process-mark t all this others set-window-point pos-visible-in-window-p recenter floatp floor window-height 1 -1 sit-for 0 string] 4> nil t) # bind (scroll process current selected string) comint-postoutput-scroll-to-bottom("good bye\n") run-hook-with-args(comint-postoutput-scroll-to-bottom "good bye\n") # bind (obuf opoint obeg oend oprocbuf string process) comint-output-filter(#<process "bash" pid 27009 state:run> "good bye\n") ("execute_internal_event()" "[internal]") (dispatch-event "[internal]") # (condition-case ... . error) # (catch top-level ...) [1] Abort xemacs (core dumped) Core stacktrace: #0 0xffffe410 in ?? () #1 0xbfffb7dc in ?? () #2 0x000028d6 in ?? () #3 0x00000006 in ?? () #4 0x403415f6 in kill () from /lib/tls/libc.so.6 #5 0x080d587b in fatal_error_signal (sig=6) at emacs.c:3734 #6 <signal handler called> #7 0xffffe410 in ?? () #8 0xbfffbad8 in ?? () #9 0x00000006 in ?? () #10 0x000028d6 in ?? () #11 0x403412c1 in raise () from /lib/tls/libc.so.6 #12 0x40342b75 in abort () from /lib/tls/libc.so.6 #13 0x080d7c22 in really_abort () at emacs.c:4596 #14 0x080d594f in assert_failed (file=0x82a9477 "signal.c", line=730, expr=0x82a9510 "QUIT called from within redisplay without being properly wrapped") at emacs.c:3919 #15 0x08203b6e in check_quit () at signal.c:728 #16 0x08203724 in check_what_happened () at signal.c:458 #17 0x080df714 in Ffuncall (nargs=2, args=0xbfffbd08) at eval.c:3776 #18 0x080e0ff0 in call1 (fn=146269744, arg0=146614668) at eval.c:4497 #19 0x0825adb3 in menu_item_descriptor_to_widget_value_1 (desc=146614668, menu_type=1, deep_p=1, filter_p=0, depth=0) at menubar-x.c:218 #20 0x0825b119 in protected_menu_item_descriptor_to_widget_value_1 ( gack=0xbfffc0a0) at menubar-x.c:353 #21 0x080e1b41 in call_trapping_problems_2 (opaque=147103872) at eval.c:4885 #22 0x080dc6dc in call_with_condition_handler ( handler=0x80e1a9f <flagged_a_squirmer>, handler_arg=147103872, fun=0x80e1b0c <call_trapping_problems_2>, arg=147103872) at eval.c:2135 #23 0x080e1b61 in call_trapping_problems_1 (opaque=147103872) at eval.c:4891 #24 0x080dba86 in internal_catch (tag=147103776, func=0x80e1b46 <call_trapping_problems_1>, arg=147103872, threw=0xbfffbf8c, thrown_tag=0xbfffbf98, backtrace_before_throw=0xbfffbf90) at eval.c:1530 #25 0x080e1f7b in call_trapping_problems (warning_class=146388360, warning_string=0x82b1f35 "Error during menu callback", flags=35, problem=0x0, fun=0x825b0e0 <protected_menu_item_descriptor_to_widget_value_1>, arg=0xbfffc0a0) at eval.c:5164 #26 0x080f4b96 in event_stream_protect_modal_loop ( error_string=0x82b1f35 "Error during menu callback", bfun=0x825b0e0 <protected_menu_item_descriptor_to_widget_value_1>, barg=0xbfffc0a0, flags=32) at event-stream.c:1934 #27 0x0825b185 in protected_menu_item_descriptor_to_widget_value ( desc=146614704, menu_type=1, deep_p=1, filter_p=0) at menubar-x.c:382 #28 0x0825b30d in pre_activate_callback (widget=0x8527170, unused_id=65537, client_data=0x8537200) at menubar-x.c:476 #29 0x0827ef9e in pre_hook (w=0x8527170, client_data=0x8526ff0, call_data=0x8537200) at lwlib-Xlw.c:82 #30 0x4016b806 in XtCallCallbackList () from /usr/X11R6/lib/libXt.so.6 #31 0x0827a566 in remap_menubar (mw=0x8527170) at xlwmenu.c:2524 #32 0x0827bd87 in handle_single_motion_event (mw=0x8527170, ev=0xbfffc6f0, select_p=1 '\001') at xlwmenu.c:3269 #33 0x0827be70 in handle_motion_event (mw=0x8527170, ev=0xbfffc6f0, select_p=1 '\001') at xlwmenu.c:3301 #34 0x0827bf78 in Start (w=0x8527170, ev=0xbfffc6f0, unused_params=0x0, unused_num_params=0x401b1c64) at xlwmenu.c:3339 #35 0x401a47e7 in XtInstallAllAccelerators () from /usr/X11R6/lib/libXt.so.6 #36 0x401a4bc4 in XtInstallAllAccelerators () from /usr/X11R6/lib/libXt.so.6 #37 0x401a5288 in _XtTranslateEvent () from /usr/X11R6/lib/libXt.so.6 #38 0x4017a7f3 in XtDispatchEventToWidget () from /usr/X11R6/lib/libXt.so.6 #39 0x4017b02a in XtDispatchEventToWidget () from /usr/X11R6/lib/libXt.so.6 #40 0x40179e5f in XtDispatchEvent () from /usr/X11R6/lib/libXt.so.6 #41 0x40187a18 in XtAppProcessEvent () from /usr/X11R6/lib/libXt.so.6 #42 0x0823d4f3 in emacs_Xt_drain_queue () at event-Xt.c:2834 #43 0x0823d56c in check_if_pending_expose_event (dev=0x8c25d20) at event-Xt.c:2855 #44 0x0824f97a in x_window_output_end (w=0x8ceb440) at redisplay-x.c:307 #45 0x081eb027 in redisplay_output_window (w=0x8ceb440) at redisplay-output.c:2494 #46 0x081d9587 in redisplay_window (window=147764288, skip_selected=0) at redisplay.c:6534 #47 0x081d9fd6 in redisplay_frame (f=0x8cea954, preemption_check=1) at redisplay.c:6940 #48 0x081da472 in redisplay_device (d=0x8c25d20, automatic=1) at redisplay.c:7021 #49 0x081dabcd in redisplay_without_hooks () at redisplay.c:7096 #50 0x081dae93 in redisplay_no_pre_idle_hook () at redisplay.c:7167 #51 0x081dae4e in redisplay () at redisplay.c:7149 #52 0x080f639b in Fsit_for (seconds=1, nodisplay=146404744) at event-stream.c:2873 #53 0x080df9b3 in Ffuncall (nargs=2, args=0xbfffcab4) at eval.c:3847 #54 0x0809ac14 in execute_optimized_program ( program=0x862988c "Æ\r!\ba­tÇ\r!È\v!W«3\nÉa¬'\nÊa¬\"\nËa«\006\t\ra¬\030\nÌa«\006\t\ra«\016Ç\r!È\v!\016\027GZY«\bÍ\rÈ\v!\"\210\f­6Ç\r!È\v!Y­-Îd\r\"?­&\212Í\rd\"\210Ï\f¨«\004\fª\021Ð\f!«\vÑÒ\r!\f_Ó\"ª\002Ô\r\"\210ÕÖ!)\207", stack_depth=4, constants_data=0x860c1a8) at bytecode.c:823 #55 0x080e7225 in funcall_compiled_function (fun=141853772, nargs=1, args=0xbfffcd08) at eval.c:3457 #56 0x080dfc6f in Ffuncall (nargs=2, args=0xbfffcd04) at eval.c:3886 #57 0x0809ac14 in execute_optimized_program ( program=0x85a7bc8 "Æ\f!«\004\fª\aÇ\v!­\002\v\032ÈÉ\n!!«\003Ê\021É\n!\211\030\035Ë\r\t\f\v$\025\016\f\r!\210\r\ba?­\003ªí+\207\025`®+1", stack_depth=6, constants_data=0x8c40620) at bytecode.c:823 #58 0x080e7225 in funcall_compiled_function (fun=147616096, nargs=3, args=0xbfffcf58) at eval.c:3457 #59 0x080dfc6f in Ffuncall (nargs=4, args=0xbfffcf54) at eval.c:3886 #60 0x0809ac14 in execute_optimized_program ( program=0x85e5588 "Å \032p\034Æ\f!\033\t\030\v­\006ÇÈÉÊ#,\207", stack_depth=4, constants_data=0x85f503c) at bytecode.c:823 #61 0x080e7225 in funcall_compiled_function (fun=141853816, nargs=1, args=0xbfffd2fc) at eval.c:3457 #62 0x080dfc6f in Ffuncall (nargs=2, args=0xbfffd2f8) at eval.c:3886 #63 0x080e0be2 in run_hook_with_args_in_buffer (buf=0x842a114, nargs=2, args=0xbfffd2f8, cond=RUN_HOOKS_TO_COMPLETION) at eval.c:4360 #64 0x080e0c92 in run_hook_with_args (nargs=2, args=0xbfffd2f8, cond=RUN_HOOKS_TO_COMPLETION) at eval.c:4380 #65 0x080e08c6 in Frun_hook_with_args (nargs=2, args=0xbfffd2f8) at eval.c:4255 #66 0x080dfbe2 in Ffuncall (nargs=3, args=0xbfffd2f4) at eval.c:3870 #67 0x0809ac14 in execute_optimized_program ( program=0x85a1b64 "Æ\016\022!\211\036\023\205\227", stack_depth=5, constants_data=0x860c140) at bytecode.c:823 #68 0x080e7225 in funcall_compiled_function (fun=141853640, nargs=2, args=0xbfffd554) at eval.c:3457 #69 0x080dfc6f in Ffuncall (nargs=3, args=0xbfffd550) at eval.c:3886 #70 0x080e104d in call2 (fn=141835920, arg0=140559064, arg1=140257088) at eval.c:4513 #71 0x081c0d16 in read_process_output (process=140559064, read_stderr=0) at process.c:1095 #72 0x080f67b1 in execute_internal_event (event=140287344) at event-stream.c:3014 #73 0x080f97a5 in Fdispatch_event (event=140287344) at event-stream.c:4642 #74 0x080a8a8f in Fcommand_loop_1 () at cmdloop.c:600 #75 0x080a884b in command_loop_1 (unused_dummy=146404744) at cmdloop.c:505 #76 0x080dbfcd in condition_case_1 (handlers=146401592, bfun=0x80a881b <command_loop_1>, barg=146404744, hfun=0x80a846b <cmd_error>, harg=146404744) at eval.c:1924 #77 0x080a857b in command_loop_3 () at cmdloop.c:262 #78 0x080a859e in command_loop_2 (unused_dummy=146404744) at cmdloop.c:275 #79 0x080dba86 in internal_catch (tag=146168912, func=0x80a8593 <command_loop_2>, arg=146404744, threw=0x0, thrown_tag=0x0, backtrace_before_throw=0x0) at eval.c:1530 #80 0x080a868b in initial_command_loop (load_me=146404744) at cmdloop.c:313 #81 0x080d4718 in xemacs_21_5_b24_i686_pc_linux (argc=1, argv=0xbfffdf84, unused_envp=0x0, restart=0) at emacs.c:2624 #82 0x080d50cc in main (argc=1, argv=0xbfffdf84, unused_envp=0xbfffdf8c) at emacs.c:3064 _______________________________________________ XEmacs-Beta mailing list XEmacs-Beta(a)xemacs.org http://calypso.tux.org/cgi-bin/mailman/listinfo/xemacs-beta