In kernel 3.9, one of the headers is no longer included by default, and must be added explicitly. The patch is Index: vboxhost/vboxdrv/r0drv/linux/thread2-r0drv-linux.c =================================================================== --- vboxhost.orig/vboxdrv/r0drv/linux/thread2-r0drv-linux.c +++ vboxhost/vboxdrv/r0drv/linux/thread2-r0drv-linux.c @@ -34,6 +34,7 @@ #include <iprt/assert.h> #include <iprt/thread.h> #include <iprt/err.h> +#include <linux/sched/rt.h> #include "internal/thread.h" Larry -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org