File intel_release_static_region.patch of Package Mesa

diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c
index 3601eca..3a56595 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -674,6 +674,31 @@ intelDestroyContext(__DRIcontextPrivate * driContextPriv)
             fprintf(stderr, "do something to free texture heaps\n");
       }
 
+      if (!driContextPriv->driScreenPriv->dri2.enabled && intel->driDrawable) {
+         struct intel_framebuffer *intel_fb =
+             (struct intel_framebuffer *) intel->driDrawable->driverPrivate;
+         struct intel_renderbuffer *irbDepth =
+             intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH);
+         struct intel_renderbuffer *irbStencil =
+             intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL);
+
+         if (intel_fb->color_rb[0]) {
+            intel_renderbuffer_set_region(intel_fb->color_rb[0], NULL);
+         }
+
+         if (intel_fb->color_rb[1]) {
+             intel_renderbuffer_set_region(intel_fb->color_rb[1], NULL);
+         }
+
+         if (irbDepth) {
+	    intel_renderbuffer_set_region(irbDepth, NULL);
+         }
+
+         if (irbStencil) {
+	    intel_renderbuffer_set_region(irbStencil, NULL);
+         }
+      }
+
       intel_region_release(&intel->front_region);
       intel_region_release(&intel->back_region);
       intel_region_release(&intel->third_region);
diff --git a/src/mesa/drivers/dri/intel/intel_fbo.c b/src/mesa/drivers/dri/intel/intel_fbo.c
index 98a6e18..fe7589a 100644
--- a/src/mesa/drivers/dri/intel/intel_fbo.c
+++ b/src/mesa/drivers/dri/intel/intel_fbo.c
@@ -374,7 +374,8 @@ intel_renderbuffer_set_region(struct intel_renderbuffer *rb,
    intel_region_reference(&rb->region, region);
    intel_region_release(&old);
 
-   rb->pfPitch = region->pitch;
+   if (region)
+      rb->pfPitch = region->pitch;
 }
 
 /**
diff --git a/src/mesa/drivers/dri/intel/intel_regions.c b/src/mesa/drivers/dri/intel/intel_regions.c
index bbbaf3e..2eb393a 100644
--- a/src/mesa/drivers/dri/intel/intel_regions.c
+++ b/src/mesa/drivers/dri/intel/intel_regions.c
@@ -166,8 +166,9 @@ intel_region_reference(struct intel_region **dst, struct intel_region *src)
    assert(*dst == NULL);
    if (src) {
       src->refcount++;
-      *dst = src;
    }
+
+   *dst = src;
 }
 
 void