On Thu, 05 Aug 2010 17:20:46 -0700 Joe Eykholt <jeykholt@xxxxxxxxx> wrote: > Hi all, > > When I add a LUN using btype NULL: > > tgtadm --lld ftgt --op new --mode logicalunit --tid 1 --lun 2 -b null2 --bstype null > > I get this failure in the kernel on every read: > > [ 711.424119] scsi_map_user_pages(378) Could not handle request of size 4096. > [ 711.431907] scsi_tgt_kspace_exec(514) cmd ffff88045b628eb8 ret -22 uaddr 0 len 4096 rw 2 > > scsi_map_user_pages() doesn't like uaddr == 0. Yeah, uaddr is supposed to be an user-space address. > Should this be fixed in the kernel or in tgtd? Needs to fix tgtd. "NULL" bstype means that we don't any real I/Os so the kernel module has nothing to do with it. > I'm using tgt-1.0.5 (very lightly modified to add ftgt). -- To unsubscribe from this list: send the line "unsubscribe stgt" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
