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Another attempt to fix crashes due to prematurely freed faces

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* src/xdisp.c (redisplay_internal): Inhibit freeing of realized
faces for as long as we might have desired matrices that reference
those faces.  (Bug#21428)
This commit is contained in:
Eli Zaretskii 2015-09-28 15:50:29 +03:00
parent 28ddc85047
commit a11ae01df9
1 changed files with 6 additions and 0 deletions
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6
src/xdisp.c
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@ -13383,6 +13383,8 @@ redisplay_internal (void)
pending = false;
forget_escape_and_glyphless_faces ();
inhibit_free_realized_faces = false;
/* If face_change, init_iterator will free all realized faces, which
includes the faces referenced from current matrices. So, we
can't reuse current matrices in this case. */
@ -13871,6 +13873,10 @@ redisplay_internal (void)
if (sf->fonts_changed)
goto retry;
/* Prevent freeing of realized faces, since desired matrices are
pending that reference the faces we computed and cached. */
inhibit_free_realized_faces = true;
/* Prevent various kinds of signals during display update.
stdio is not robust about handling signals,
which can cause an apparent I/O error. */