Re: nfs server issues

On Fri, 2004-04-02 at 08:33, Dan Nelson wrote:
> In the last episode (Apr 01), Sean McNeil said:
> > I have googled and seen a great deal of talk about FreeBSD nfs client
> > issues, but haven't seen anything about server problems.  I've now
> > tried with a Solaris 2.7, HPUX 11.11, and 2 different Linux boxes and
> > I get the same thing happening...
> > 
> > If I mount an nfs partition on any of the above mentioned machines,
> > everything works fine until I try to copy a bunch of files over.  For
> > instance, if I mount it at /mnt and do
> > 
> > cd /localdisk; (cd /mnt; tar cf - .) | tar xvf -
> > 
> > It will lock up hard.  Linux is saying
> > 
> > nfs: task xxxx can't get a request slot
> 
> "tcpdump -s0" output might help here, I think.  Do it from both
> machines and make sure no packets are being dropped, and then check to
> see what NFS request the client is trying to make that isn't getting
> processed.

OK, here is a tcpdump.  It is confusing. It looks like after the first
fragment is received it is looking up some bazaar IP address....

13:02:57.566952 free.mcneil.com.1360032988 > server.mcneil.com.nfs: 136
readdir fh 1002,54097/7890231 4096 bytes _at_ 0x000000000 (DF)
13:02:57.567266 server.mcneil.com.nfs > free.mcneil.com.1360032988:
reply ok 1472 readdir (frag 1645:1480_at_0+)
13:02:57.567268 0.0.0.1 > 0.0.10.7: (frag 1645:4_at_1480)
13:02:57.567375 free.mcneil.com.32772 > server.mcneil.com.domain: 
32381+ PTR? 7.10.0.0.in-addr.arpa. (39) (DF)
13:02:57.567536 server.mcneil.com.domain > free.mcneil.com.32772:  32381
NXDomain 36268/1/0 SOA (103)
13:03:01.766943 arp who-has server.mcneil.com tell free.mcneil.com
13:03:01.767040 arp reply server.mcneil.com is-at 0:d:61:27:4d:6b
13:03:02.576961 free.mcneil.com.32772 > server.mcneil.com.domain: 
32381+ PTR? 7.10.0.0.in-addr.arpa. (39) (DF)
13:03:02.577146 server.mcneil.com.domain > free.mcneil.com.32772:  32381
NXDomain 0/1/0 (103)
13:03:02.577395 free.mcneil.com.32772 > server.mcneil.com.domain: 
32382+ PTR? 1.0.0.0.in-addr.arpa. (38) (DF)
13:03:02.577513 server.mcneil.com.domain > free.mcneil.com.32772:  32382
NXDomain 0/1/0 (102)