On Mon, Mar 26, 2012 at 06:27:00PM +0300, Jukka Ruohonen wrote: > On Mon, Mar 26, 2012 at 10:17:08AM -0500, David Young wrote: > > ENXIO seems appropriate. > > Or even better: ENOSYS. Careful with that, returning ENOSYS within the kernel often ends up killing the current process with SIGSYS. Thor