Comment 7 for bug 817269

Dear others,

I believe I am experiencing this issue or something similar. I have:

* an NFS Server
* Centos 6.2 Clients Mounting /home/ from NFS server.
* I've been able to trigger the problem consistently using the bash snippet.
* Symptom: NFS server gets hosed, and all other clients hang because of Denial of Service (I think)

On Server (repeatedly...):
Mar 28 16:15:50 nfsserver kernel: [17297451.712162] rpcbind: server ws-1 not responding, timed out
Mar 28 16:16:50 nfsserver kernel: [17297511.617176] lockd: server ws-1 not responding, timed out
Mar 28 16:16:50 nfsserver kernel: [17297511.617188] lockd: couldn't create RPC handle for ws-1

On Client (repeatedly):
Mar 28 16:12:10 workstation kernel: Shorewall:net2fw:DROP:IN=eth0 OUT= MAC=00:30:48:b3:30:1e:00:30:48:9d:7f:ed:08:00 SRC=172.16.1.21 DST=172.16.1.141 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=26398 DF PROTO=TCP SPT=47553 DPT=111 WINDOW=5840 RES=0x00 SYN URGP=0

This means for some reason the SERVER is trying to access the CLIENT on port 111 (and is getting denied) This should never actually happen, and I noticed it in the logs.

In any case, any help to resolve this would be appreciate. Thank you.