Re: Mule redisplay crash

Tuesday, 14 December 1999

        Gunnar Evermann <ge204(a)eng.cam.ac.uk&gt; writes:

...
 loading the following in a vanilla Mule XEmacs will trigger a crash.

 (defun delete-and-split ()
   (interactive)
   (delete-other-windows)
   (split-window))
 (split-window-vertically)
 (insert "$B$,(B")
 (backward-char)
 (redraw-frame)
 (delete-and-split) 
[...]

...
 A quick fix for the crash would be adding a call to
 ensure_face_cachel_contains_charset() at the relevant place in
 x_output_string like this: 
[...patch...]

...
 This works but is kindof expensive to do, as x_output_string is
called
 very very often :-)

 Maybe our Mule and redisplay experts can try to come up with something
 more clever... 
Wonderful! This cures the frequent crashes I experienced while using
lookup.el. Last weekend I managed to reproduce these crashes, but
wasn't yet able to narrow it down to a small bit of sample code.

The last function shown on the lisp backtraces was always
`split-window' shortly after some Japanese characters had been
inserted.

Therefore when I saw Gunnars patch appear on this list, I guessed this
might fix my problem, and indeed it did.

Thank you very much!

Mike

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