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Fix assertion violation when 'max-redisplay-ticks' is set too low

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* src/xdisp.c (update_redisplay_ticks): Disable 'scrolling_window'
optimization in 'update_window' when redisplay of a window is
aborted.  (Bug#56184)
This commit is contained in:
Eli Zaretskii 2022-06-24 14:14:41 +03:00
parent 66669c5c20
commit 391acd9134
1 changed files with 5 additions and 0 deletions
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src/xdisp.c
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@ -17250,6 +17250,11 @@ update_redisplay_ticks (int ticks, struct window *w)
: (char *) "<unknown>");
windows_or_buffers_changed = 177;
/* scrolling_window depends too much on the glyph matrices being
correct, and we cannot guarantee that if we abort the
redisplay of this window. */
if (w && w->desired_matrix)
w->desired_matrix->no_scrolling_p = true;
error ("Window showing buffer %s takes too long to redisplay", bufname);
}
}