Index: linux-2.6.27-gentoo-r4/drivers/gpu/drm/drm_sman.c
===================================================================
--- linux-2.6.27-gentoo-r4.orig/drivers/gpu/drm/drm_sman.c
+++ linux-2.6.27-gentoo-r4/drivers/gpu/drm/drm_sman.c
@@ -209,13 +209,16 @@ struct drm_memblock_item *drm_sman_alloc
 	tmp = sman_mm->allocate(sman_mm->private, size, alignment);
 
 	if (!tmp) {
+		printk("sman_alloc tmp failed\n");
 		return NULL;
 	}
 
 	memblock = drm_calloc(1, sizeof(*memblock), DRM_MEM_MM);
 
-	if (!memblock)
+	if (!memblock) {
+		printk("sman_alloc drm_calloc failed\n");
 		goto out;
+	}
 
 	memblock->mm_info = tmp;
 	memblock->mm = sman_mm;
@@ -223,12 +226,16 @@ struct drm_memblock_item *drm_sman_alloc
 
 	if (drm_ht_just_insert_please
 	    (&sman->user_hash_tab, &memblock->user_hash,
-	     (unsigned long)memblock, 32, 0, 0))
+	     (unsigned long)memblock, 32, 0, 0)) {
+	     	printk("sman_alloc just_insert_please failed\n");
 		goto out1;
+	}
 
 	owner_item = drm_sman_get_owner_item(sman, owner);
-	if (!owner_item)
+	if (!owner_item) {
+		printk("sman_alloc get_owner_item failed\n");
 		goto out2;
+	}
 
 	list_add_tail(&memblock->owner_list, &owner_item->mem_blocks);
 
Index: linux-2.6.27-gentoo-r4/drivers/gpu/drm/via/via_mm.c
===================================================================
--- linux-2.6.27-gentoo-r4.orig/drivers/gpu/drm/via/via_mm.c
+++ linux-2.6.27-gentoo-r4/drivers/gpu/drm/via/via_mm.c
@@ -151,7 +151,7 @@ int via_mem_alloc(struct drm_device *dev
 		mem->offset = 0;
 		mem->size = 0;
 		mem->index = 0;
-		DRM_DEBUG("Video memory allocation failed\n");
+		printk("Video memory allocation failed, type=%d size=%ld\n", mem->type, tmpSize);
 		retval = -ENOMEM;
 	}