On Thu, Nov 17, Boris Ostrovsky wrote: > On 11/17/2016 06:28 AM, Olaf Hering wrote: > > ERROR: "__mpol_dup" [drivers/xen/xen-gntdev.ko] undefined! > > ERROR: "get_task_policy" [drivers/xen/xen-gntdev.ko] undefined! > I just built 4.4.11 with this patch applied and haven't had any problems. Are these functions exported? How would the driver module call into the core kernel? Maybe the added functionality should be provided by an exported helper function. Olaf