NFS Locking Issue

[Michel Talon]

> So it may be relevant to say that i have kernels without IPV6 support.
> Recall that i have absolutely no problem with the client in FreeBSD-6.1.
> Tomorrow i will test one of the 6.1 machines as a NFS server and the other as
> a client, and will make you know if i see something.

Well, i have checked between 2 FreeBSD-6.1-RELEASE machines on the network,
both have fxp ethernet driver running at 100 Mb/s, one is NFS server other NFS
client. Both run lockd and statd. I have absolutely no problem exchanging
files, for example if i begin to copy /usr/src through NFS from one machine to
the other, which makes a lot of transactions of all sorts, i get:
niobe# mount asmodee:/usr/src /mnt
cp -R /mnt/src .
...
after some time i interrupt the transfer 
niobe% du -sh .
131M    .
and during this time i observe the following type of statistics
asmodee% netstat -w 1 -I fxp0
           input         (fxp0)           output
   packets  errs      bytes    packets  errs      bytes colls
       542     0      84116       1330     0    1219388     0 
       515     0      72806       1290     0    1196330     0 
       501     0      95722       1081     0     741048     0 
       539     0      90704       1090     0    1228052     0 
       645     0      67888        902     0    1451098     0 
       405     0      81264       1609     0     604278     0 
       503     0      74218        709     0     924422     0 
       500     0      98904        973     0     619350     0 
       550     0     100122        855     0     836328     0 
       615     0      79336       1081     0     862772     0 
       577     0      82862        901     0    1005024     0 
       
which looks decent to me.

Doing the same with just one big file no problem either, and i get a transfer
speed of 6.60 MB/s which is perhaps a little less than with linux, but nothing
catastrophic. I get 8.20 MB/s for FreeBSD client interacting with the Linux
server.

Now netstat gives
  packets  errs      bytes    packets  errs      bytes colls
       785     0     123266       4716     0    6825600     0 
       759     0     139898       4530     0    7747276     0 
       852     0     124652       5106     0    6902566     0 
       863     0     128040       5170     0    7081738     0 
       811     0     123760       4862     0    6851498     0 
       789     0     123540       4720     0    6834310     0 
       840     0     115378       5024     0    6382114     0 
   
So up to what i can see NFS works OK for me on FreeBSD-6.1. 

So the main difference with other people cases may be that i have removed IPV6
support from kernel.

-- 

Michel TALON