[Bug 71415] Xorg SIGSEGV in sna_do_copy() for 2.99.905

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71415

--- Comment #7 from Chris Wilson <chris at chris-wilson.co.uk> ---
Ah, that's what I guessed.

Can you please compile xf86-video-intel.git with --enable-debug (or apply
diff --git a/src/sna/sna_accel.c b/src/sna/sna_accel.c
index 497e0d1..388e075 100644
--- a/src/sna/sna_accel.c
+++ b/src/sna/sna_accel.c
@@ -14947,6 +14947,8 @@ sna_validate_gc(GCPtr gc, unsigned long changes,
DrawablePtr drawable)
            (gc->clientClipType != CT_NONE && (changes & (GCClipXOrigin |
GCClipYOrigin))))
                miComputeCompositeClip(gc, drawable);

+       assert(gc->pCompositeClip);
+
        sna_gc(gc)->changes |= changes;
 }
and ./configure --enable-debug $*) and run under gdb. Please report where it
then fails.

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