Patch for Virtual Box Additions 4.2.10 and CentOS 6.4 execute patch in /usr/src/vboxguest-4.2.10/vboxvideo patch < patch_name.patch then run /etc/init.d/vboxadd setup Patch credit goes to dmischa (https://www.centos.org/modules/newbb/viewtopic.php?viewmode=flat&topic_id=41693&forum=55)

open_gl_patch_4.2.10.patch

--- vboxvideo_drm.c.ori	2013-03-01 12:11:52.146639050 +0100
+++ vboxvideo_drm.c	2013-03-01 12:18:57.231061446 +0100
@@ -70,6 +70,9 @@
 #   if RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,3)
 #    define DRM_RHEL63
 #   endif
+#   if RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6,4)
+#    define DRM_RHEL64
+#   endif
 #  endif
 # endif
 
@@ -106,7 +109,7 @@
 {
     /* .driver_features = DRIVER_USE_MTRR, */
     .load = vboxvideo_driver_load,
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 6, 0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 6, 0) && !defined(DRM_RHEL64)
     .reclaim_buffers = drm_core_reclaim_buffers,
 #endif
     /* As of Linux 2.6.37, always the internal functions are used. */