6 files changed, 26 insertions, 8 deletions
diff --git a/src/mesa/main/arrayobj.c b/src/mesa/main/arrayobj.c
index fd35d4e38c9..e36137d3782 100644
--- a/src/mesa/main/arrayobj.c
+++ b/src/mesa/main/arrayobj.c
@@ -95,6 +95,10 @@ unbind_array_object_vbos(GLcontext *ctx, struct gl_array_object *obj)
 
    for (i = 0; i < Elements(obj->VertexAttrib); i++)
       _mesa_reference_buffer_object(ctx, &obj->VertexAttrib[i].BufferObj,NULL);
+
+#if FEATURE_point_size_array
+   _mesa_reference_buffer_object(ctx, &obj->PointSize.BufferObj, NULL);
+#endif
 }
 
 
diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c
index 2271550efe1..dabb1386ca4 100644
--- a/src/mesa/main/bufferobj.c
+++ b/src/mesa/main/bufferobj.c
@@ -556,6 +556,17 @@ _mesa_init_buffer_objects( GLcontext *ctx )
 }
 
 
+void
+_mesa_free_buffer_objects( GLcontext *ctx )
+{
+   _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj, NULL);
+   _mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj, NULL);
+
+   _mesa_reference_buffer_object(ctx, &ctx->CopyReadBuffer, NULL);
+   _mesa_reference_buffer_object(ctx, &ctx->CopyWriteBuffer, NULL);
+}
+
+
 /**
  * Bind the specified target to buffer for the specified context.
  * Called by glBindBuffer() and other functions.
diff --git a/src/mesa/main/bufferobj.h b/src/mesa/main/bufferobj.h
index 2931962ac08..f8bca5ff717 100644
--- a/src/mesa/main/bufferobj.h
+++ b/src/mesa/main/bufferobj.h
@@ -60,6 +60,9 @@ extern void
 _mesa_init_buffer_objects( GLcontext *ctx );
 
 extern void
+_mesa_free_buffer_objects( GLcontext *ctx );
+
+extern void
 _mesa_update_default_objects_buffer_objects(GLcontext *ctx);
 
 
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index fccce51e852..591aa1121d1 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -955,6 +955,7 @@ _mesa_free_context_data( GLcontext *ctx )
    _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram, NULL);
 
    _mesa_free_attrib_data(ctx);
+   _mesa_free_buffer_objects(ctx);
    _mesa_free_lighting_data( ctx );
    _mesa_free_eval_data( ctx );
    _mesa_free_texture_data( ctx );
@@ -974,6 +975,7 @@ _mesa_free_context_data( GLcontext *ctx )
 #if FEATURE_ARB_pixel_buffer_object
    _mesa_reference_buffer_object(ctx, &ctx->Pack.BufferObj, NULL);
    _mesa_reference_buffer_object(ctx, &ctx->Unpack.BufferObj, NULL);
+   _mesa_reference_buffer_object(ctx, &ctx->DefaultPacking.BufferObj, NULL);
 #endif
 
 #if FEATURE_ARB_vertex_buffer_object
diff --git a/src/mesa/main/pixel.c b/src/mesa/main/pixel.c
index f6f9c1173a1..ca6ecd7bfb6 100644
--- a/src/mesa/main/pixel.c
+++ b/src/mesa/main/pixel.c
@@ -150,13 +150,17 @@ validate_pbo_access(GLcontext *ctx, struct gl_pixelstore_attrib *pack,
    GLboolean ok;
 
    /* Note, need to use DefaultPacking and Unpack's buffer object */
-   ctx->DefaultPacking.BufferObj = pack->BufferObj;
+   _mesa_reference_buffer_object(ctx,
+                                 &ctx->DefaultPacking.BufferObj,
+                                 pack->BufferObj);
 
    ok = _mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1,
                                   format, type, ptr);
 
    /* restore */
-   ctx->DefaultPacking.BufferObj = ctx->Shared->NullBufferObj;
+   _mesa_reference_buffer_object(ctx,
+                                 &ctx->DefaultPacking.BufferObj,
+                                 ctx->Shared->NullBufferObj);
 
    if (!ok) {
       _mesa_error(ctx, GL_INVALID_OPERATION,
diff --git a/src/mesa/main/shared.c b/src/mesa/main/shared.c
index a7cf623c47d..b889364f0dc 100644
--- a/src/mesa/main/shared.c
+++ b/src/mesa/main/shared.c
@@ -95,12 +95,6 @@ _mesa_alloc_shared_state(GLcontext *ctx)
 
    /* Allocate the default buffer object */
    shared->NullBufferObj = ctx->Driver.NewBufferObject(ctx, 0, 0);
-#ifndef DEBUG
-   /* Set refcount so high that it never gets deleted.
-    * XXX with recent/improved refcounting this should be no longer be needed.
-    */
-   shared->NullBufferObj->RefCount = 1000 * 1000 * 1000;
-#endif
 
    /* Create default texture objects */
    for (i = 0; i < NUM_TEXTURE_TARGETS; i++) {