redisplay w/o minibuffer broken

Broken `height' value of 26 gets there through `XtConfigureWidget' call inside `x_layout_widgets', which call is really caused by `sit-for' with some arbitrary timeout value (so race conditions are likely). The backtrace follows. Just after `change_frame_size' call in `EmacsFrameResize' was added the following: { int ph; char_to_pixel_size (f, f->width, f->height, NULL, &ph); assert (f->pixheight >= ph || f->size_slipped); } so that xemacs does not try to set inconsistent frame measurements unless `f->size_slipped' ensures that the next `redisplay_frame' will fix them. Is `x_layout_widgets' really supposed to leave frame measurements inconsistent without scheduling to fix them on redisplay? #1 0x082315ac in EmacsFrameResize (widget=0x8967c10) at src/EmacsFrame.c:391 #2 0x401339ec in ResizeWrapper () from /usr/X11R6/lib/libXm.so.2 #3 0x401337d8 in ResizeWrapper4 () from /usr/X11R6/lib/libXm.so.2 #4 0x4029e57c in XtConfigureWidget () from /usr/X11R6/lib/libXt.so.6 #5 0x0820b5a8 in x_layout_widgets (w=0x8cc4f50, client_data=0x8e8b2c8, call_data=0xbfffe124) at src/frame-x.c:1814 #6 0x4028f716 in XtCallCallbackList () from /usr/X11R6/lib/libXt.so.6 #7 0x08232759 in Resize (w=0x8cc4f50) at src/EmacsManager.c:176 #8 0x401339ec in ResizeWrapper () from /usr/X11R6/lib/libXm.so.2 #9 0x40133800 in ResizeWrapper6 () from /usr/X11R6/lib/libXm.so.2 #10 0x4029e57c in XtConfigureWidget () from /usr/X11R6/lib/libXt.so.6 #11 0x4009ab81 in XmeConfigureObject () from /usr/X11R6/lib/libXm.so.2 #12 0x40142d1d in Resize () from /usr/X11R6/lib/libXm.so.2 #13 0x401339ec in ResizeWrapper () from /usr/X11R6/lib/libXm.so.2 #14 0x40133828 in ResizeWrapper8 () from /usr/X11R6/lib/libXm.so.2 #15 0x40140d58 in StructureNotifyHandler () from /usr/X11R6/lib/libXm.so.2 #16 0x4029ad68 in XtDispatchEventToWidget () from /usr/X11R6/lib/libXt.so.6 #17 0x4029b730 in _XtOnGrabList () from /usr/X11R6/lib/libXt.so.6 #18 0x4029baa7 in XtDispatchEvent () from /usr/X11R6/lib/libXt.so.6 #19 0x402a692e in XtAppProcessEvent () from /usr/X11R6/lib/libXt.so.6 #20 0x082067c4 in drain_X_queue () at src/event-Xt.c:2985 #21 0x08206929 in emacs_Xt_event_pending_p (user_p=1) at src/event-Xt.c:3110 #22 0x0811ed01 in Fsit_for (seconds=139618876, nodisplay=1081545268) at src/event-stream.c:438 # (unwind-protect ...) sit-for(0.1) # bind (count window-min-height ctl-frame-iconified-p dont-iconify-ctl-frame deiconify-ctl-frame ctl-frame old-ctl-frame lines fheight fwidth adjusted-parameters designated-minibuffer-frame ctl-buffer) ediff-setup-control-frame(#<buffer "*Ediff Control Panel*"> #<x-frame "emacs" 0x82b>) # bind (done-C done-B done-A designated-minibuffer-frame wind-B-start wind-A-start use-same-frame orig-wind three-way-comparison split-window-function force-one-frame ctl-frame-exists-p frame-C frame-B frame-A wind-C wind-B wind-A window-min-height control-buf buf-C buf-B buf-A) ediff-setup-windows-multiframe-compare(#<buffer "scratch-db"> #<buffer ".gdbinit"> nil #<buffer "*Ediff Control Panel*">) # bind (control-buf buf-C buf-B buf-A) ediff-setup-windows-multiframe(#<buffer "scratch-db"> #<buffer ".gdbinit"> nil #<buffer "*Ediff Control Panel*">) # bind (control-buffer buffer-C buffer-B buffer-A) ediff-setup-windows(#<buffer "scratch-db"> #<buffer ".gdbinit"> nil #<buffer "*Ediff Control Panel*">) # (unwind-protect ...) # bind (control-buffer control-buffer-name merge-buffer-file setup-parameters startup-hooks file-C buffer-C file-B buffer-B file-A buffer-A) ediff-setup(#<buffer "scratch-db"> "/tmp/gin/scratch-db1VA7vn" #<buffer ".gdbinit"> "/tmp/gin/.gdbinit1VAI6t" nil nil ((lambda nil (delete-file "/tmp/gin/scratch-db1VA7vn") (delete-file "/tmp/gin/.gdbinit1VAI6t") (if ... ...))) ((ediff-job-name . ediff-buffers)) nil) # bind (file-C file-B file-A buf-C-file-name buf-C-is-alive buf-B-file-name buf-A-file-name merge-buffer-file job-name startup-hooks buf-C buf-B buf-A) ediff-buffers-internal("scratch-db" ".gdbinit" nil nil ediff-buffers) # bind (job-name startup-hooks buffer-B buffer-A) #<compiled-function (buffer-A buffer-B &optional startup-hooks job-name) "...(13)" [startup-hooks buffer-B buffer-A job-name ediff-buffers ediff-buffers-internal nil] 6 ("/home/gin/xemacs-21.4-l/xemacs-packages/lisp/ediff/ediff.elc" . 5607) (let (bf) (list ... ...))>("scratch-db" ".gdbinit") call-interactively(ediff-buffers) command-execute(ediff-buffers t) # bind (_execute_command_keys_ _execute_command_name_ prefix-arg) execute-extended-command(nil) # bind (command-debug-status) call-interactively(execute-extended-command) # (condition-case ... . error) # (catch top-level ...)