From bbd91a05fa83b7b2a651d5386f4592db405bbcda Mon Sep 17 00:00:00 2001 From: Eli Zaretskii Date: Sun, 23 Jul 2023 13:44:40 -0400 Subject: [PATCH] Fix rare aborts in CHECK_WINDOW_END Those aborts happen because a window's window_end_vpos value is inconsistent with the current matrix's number of rows, which happens after resizing the mini-window. * src/xdisp.c (mark_window_display_accurate_1): Don't validate the window_end_valid flag if window_end_vpos is inconsistent with the current_matrix's number of rows. This happens, e.g., when Edebug wants to show a value in the mini-window that causes it to resize, as the window above the mini-window was usually already redisplayed, and we think its display is accurate. --- src/xdisp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/xdisp.c b/src/xdisp.c index 540fdbb0b07..8a6e2b0f6d6 100644 --- a/src/xdisp.c +++ b/src/xdisp.c @@ -17498,7 +17498,8 @@ mark_window_display_accurate_1 (struct window *w, bool accurate_p) else w->last_point = marker_position (w->pointm); - w->window_end_valid = true; + if (w->window_end_vpos < w->current_matrix->nrows) + w->window_end_valid = true; w->update_mode_line = false; w->preserve_vscroll_p = false; } -- 2.39.5