NFSv4: prob err=10036

Rick Macklem rmacklem at
Mon Apr 14 14:00:46 UTC 2014

Marcelo Araujo wrote:
> Hi all,
> Anyone have saw this prob err before when try to mount a NFSv4?
> machine_a# mount -t nfs -o nfsv4 /mnt/
> machine_a# mount_nfs: /mnt, : Input/output error
> machine_a# tail /var/log/messages |grep nfsv4
> Apr 13 17:03:33 ESSD46B6E kernel: nfsv4 client/server protocol prob
> err=10036
Well, 10036 is NFSERR_BADXDR (they are all in sys/fs/nfs/nfsproto.h).
This means that the server didn't like the RPC message presented to it.
(I have no idea why that would be the case for machine_a?)

If you capture packets while attempting the mount, you can look at
them in wireshark and maybe see how they are trashed? (I just got home,
so I can take a look at a packet capture, if you email it to me as an
# tcpdump -s 0 -w mnt.pcap host
- run on machine_a during the mount attempt, should do it (in mnt.pcap).


> I have another machine with the same settings that can mount
> successfully
> the same NFSv4 share.
> machine_c# mount -t nfs -o nfsv4 /mnt/
> machine_c#
> Best Regards,
> --
> Marcelo Araujo
> araujo at
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