Hi all, After a month or so struggling with this, and some other problems with NFSD in my "old" kernel (2.6.16.60-0.39.3-smp) related with MTUs larger than 1500 stalling the server, I think I have found something related with my inability to serve v4 filesystems: In /usr/src/linux/include/linux/nfsd/const.h there is this defined: /* * Maximum protocol version supported by knfsd */ #define NFSSVC_MAXVERS 3 And in /usr/src/linux/fs/nfsd/nfsctl.c we can find this: err = -EINVAL; if (data->gd_version < 2 || data->gd_version > NFSSVC_MAXVERS) goto out; ... out: return err; And I found exactly the same in 2.6.34.7 Is this "real" or some old thing that is no longer used and I shouldn't worry about? Thanks in advance, Txema -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html