[RndTbl] NFS again, please HELP!

[Trevor Cordes]

There must be some NFS wizards in the group...

I still can't get NFS locking to work between my 2 linux boxen.

I took the drastic steps of completely disabling my iptables firewalls on 
both boxes and setting the policies to ACCEPT.  Didn't help.

I also set my NFS server config back to 100% stock (mv /etc/sysconfig/nfs 
/tmp/; service nfs restart; service nfslock restart; service rpcidmapd 
restart; service portmap restart), remount.  Doesn't help.

The test code at the bottom never gets past the flock call.  oocalc also 
will never get past the splash screen.

I tried exporting and mounting from machine A to machine A (I guess a 
loopback-ish mount).  For both machine A and B, this works fine.  The perl 
code runs and oocalc loads up a NFS'd file instantly.

If I mount with nolock in client's fstab, then oocalc starts fine 
(probably just ignoring the locks).

I recently upgrade the client box to Fedora 8 (2.6.23).  The server is not 
easily upgradable and is running 2.6.17.  I did a lot of net research and 
it seems like NFS flock should work on all kernels after 2.6.12.

I'm stumped!  Please help!

Here's my server /etc/sysconfig/nfs (to work with my firewalls)
STATD_PORT=32765
STATD_OUTGOING_PORT=32766
MOUNTD_PORT=32767
RQUOTAD_PORT=32764
LOCKD_TCPPORT=32763
LOCKD_UDPPORT=32763
SECURE_NFS=no

exports:
/data 192.168.100.1(rw,insecure,insecure_locks,async,no_subtree_check,no_root_squash)

client:
192.168.100.2:/data /data nfs rw,hard,intr,timeo=10,nosuid,bg,udp,rsize=8192,wsize=8192 0 0

server processes:
root     15986     1  0 18:50 ?        00:00:00 rpc.rquotad -p 32764
root     15989     7  0 18:50 ?        00:00:00 [nfsd4]
root     15990     1  0 18:50 ?        00:00:00 [nfsd]
root     15991     1  0 18:50 ?        00:00:00 [nfsd]
root     15992     1  0 18:50 ?        00:00:00 [nfsd]
root     15993     1  0 18:50 ?        00:00:00 [lockd]
root     15994     7  0 18:50 ?        00:00:00 [rpciod/0]
root     15995     1  0 18:50 ?        00:00:00 [nfsd]
root     15996     1  0 18:50 ?        00:00:00 [nfsd]
root     15997     1  0 18:50 ?        00:00:00 [nfsd]
root     15998     1  0 18:50 ?        00:00:00 [nfsd]
root     15999     1  0 18:50 ?        00:00:00 [nfsd]
root     16002     1  0 18:50 ?        00:00:00 rpc.mountd -p 32767
rpcuser  16039     1  0 18:50 ?        00:00:00 rpc.statd -p 32765 -o 32766
root     16069     1  0 18:50 ?        00:00:00 rpc.idmapd
rpc      16087     1  0 18:50 ?        00:00:00 portmap

test script:

#!/usr/bin/perl
 use Fcntl ':flock'; # import LOCK_* constants
 print("Just before opening file.\n");
 open(LOCKFILE,">testlockfile") or
   die "Error: Could not write to lock file: testlockfile: $!\n";
 print("Just before locking file.\n");
 flock(LOCKFILE,LOCK_EX);
 print("Just before unlocking file.\n");
 flock(LOCKFILE,LOCK_UN);
 print("All done.  File locked and unlocked.\n");
 unlink("testlockfile");
 exit(0);