Different corruption in RBX here. Looks like semi-random garbage there. I wonder - what's the mac and ip address(es) of your machine and nbd servers? (i.e. I suspect this is a nbd problem, not an XFS
no matches. Oh well, it was a long shot. RBX trashed again with more random garbage. ...... There's something seriously wrong in your kernel that has, AFAICT, nothing to do with XFS. I suggest talkin