[nfs-rdma-devel] [ofa-general] Status of NFS-RDMA ?

[James Lentini]

On Fri, 1 Feb 2008, Pawel Dziekonski wrote:

> On Fri, 01 Feb 2008 at 10:56:55AM -0500, James Lentini wrote:
> > > # mount 10.2.2.1:/scratch /mnt -i -o rdma,port=2050 Unsupported nfs 
> > > mount option: rdma
> > > 
> > > looks like I definitelly need a rdma-enabled mount, which comes in 
> > > http://www.mellanox.com/downloads/NFSoRDMA/OFED-1.2-NFS-RDMA.gz, so:
> > 
> > If you are using the NFS/RDMA client in 2.6.24, you need the version 
> > of the mount.nfs command in nfs-utils-1.1.1 or greater.
> > 
> > The "Unsupported nfs mount option: rdma" error message makes me 
> > suspect you are not using the correct version of mount.nfs. What is 
> > the output of "mount.nfs -V" and "mount -V"? It may be that the 
> > version of mount you are using does not automatically invoke mount.nfs 
> > for nfs mounts. I'd suggest specifying mount.nfs in the command above:
> 
> # mount.nfs -V
> mount.nfs (linux nfs-utils 1.1.1)
> 
> >  mount.nfs 10.2.2.1:/scratch /mnt -i -o rdma,port=2050
> 
> # mount.nfs 10.2.2.1:/scratch /mnt -i -o rdma,port=2050 -v
> mount.nfs: timeout set for Fri Feb  1 23:48:08 2008
> mount.nfs: text-based options: 'rdma,port=2050,addr=10.2.2.1'
> mount.nfs: internal error
> 
> :(

I'm going to guess that the "internal error" message means that your 
kernel does not support the NFS string mount API. Are you sure your 
kernel you are using is an exact copy of Tom Tucker's git tree? It 
can NOT have the OFED 1.2 package installed.

If the kernel is correct, can you send the output of:

 strace -e trace=all 10.2.2.1:/scratch /mnt -i -o rdma,port=2050