[ELDK] nfs: server not responding, still trying

[Chris Alfred]

Our networking appears to work ok as we can load the kernel via tftp 
in uboot.

However, when we boot the kernel with nfs root we get:

[    1.217780] TCP cubic registered
[    1.221087] NET: Registered protocol family 17
[    2.754419] IP-Config: Complete:
[    2.757547]      device=eth0, addr=192.168.1.21, mask=255.255.0.0, 
gw=192.168.1.254,
[    2.765515]      host=jkc5200n7, domain=, nis-domain=(none),
[    2.771353]      bootserver=192.168.1.103, 
rootserver=192.168.1.103, rootpath=
[    2.794007] Looking up port of RPC 100003/2 on 192.168.1.103
[    2.802413] Looking up port of RPC 100005/1 on 192.168.1.103
[    2.815344] VFS: Mounted root (nfs filesystem) readonly on device 
0:12.
[    2.822230] Freeing unused kernel memory: 168k init
[   12.281755] nfs: server 192.168.1.103 not responding, still trying
[   21.085764] nfs: server 192.168.1.103 not responding, still trying
[   29.889758] nfs: server 192.168.1.103 not responding, still trying
[   38.693767] nfs: server 192.168.1.103 not responding, still trying
[   56.297773] nfs: server 192.168.1.103 not responding, still trying
[   73.901774] nfs: server 192.168.1.103 not responding, still trying
...

I read at 
http://wiki.ltsp.org/twiki/bin/view/Ltsp/NFS#NFS_Server_not_responding 
that it might be due to the NFS block sizes. So we tried the suggested 
kernel argument change using:

[    0.000000] Kernel command line: /dev/nfs 
rw,nolock,tcp,rsize=2048,wsize=2048 
nfsroot=192.168.1.103:/opt/eldk/ppc_82xx 
ip=192.168.1.21:192.168.1.103:192.168.1.254:255.255.0.0:jkc5200n7:eth0:off 
panic=1 console=ttyPSC0,115200

We tried other rsize and wsize values to no avail.

NFS export from 192.168.1.103 is working as it was checked by mounting 
the same directory on another linux box.

Any ideas?

Chris