Hi,

I've updated nfs-utils package:
[r...@my_host ~]# mount.nfs -V
mount.nfs (linux nfs-utils 1.1.6)

[r...@my_host ~]# strace  mount.nfs 192.168.0.215:/vol0 /mnt/ -o rdma,port=2050
Does it work without rdma?

The problem is exactly the same without rdma:

[r...@my_host ~]# strace  mount.nfs 192.168.0.215:/vol0 /mnt/ -o rw,port=2050
[..]
socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP) = 3
bind(3, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("0.0.0.0")}, 
16) = 0
fcntl(3, F_GETFL)                       = 0x2 (flags O_RDWR)
fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
connect(3, {sa_family=AF_INET, sin_port=htons(997), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
fcntl(3, F_SETFL, O_RDWR)               = 0
connect(3, {sa_family=AF_UNSPEC, sa_data="\0o\177\0\0\1\0\0\0\0\0\0\0\0"}, 16) 
= 0
sendto(3, "\0308\310\272\0\0\0\0\0\0\0\2\0\1\206\270\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0"..., 
40, 0, {sa_family=AF_INET, sin_port=htons(997), sin_addr=inet_addr("127.0.0.1")}, 16) = 40
poll([{fd=3, events=POLLIN}], 1, 3000)  = 1 ([{fd=3, revents=POLLIN}])
recvfrom(3, "\0308\310\272\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 400, MSG_DONTWAIT, 
{sa_family=AF_INET, sin_port=htons(997), sin_addr=inet_addr("127.0.0.1")}, [16]) = 24
close(3)                                = 0
mount("192.168.0.215:/vol0", "/mnt", "nfs", 0, "port=2050,addr=192.168.0.215"

.. and it blocks !

[r...@my_host ~]# dmesg
rpcrdma: connection to 192.168.0.215:2050 on mlx4_0, memreg 5 slots 32 ird 16
rpcrdma: connection to 192.168.0.215:2050 closed (-103)
rpcrdma: connection to 192.168.0.215:2050 on mlx4_0, memreg 5 slots 32 ird 16
rpcrdma: connection to 192.168.0.215:2050 closed (-103)

Celine, can you establish regular rdma connections over your IB link? Like rping?

I can't etablish rdma connection, following errors occur with rping :

[r...@my_host ~]# rping -c 192.168.0.214
cq completion failed status 5
wait for CONNECTED state 10
connect error -1
cma event RDMA_CM_EVENT_REJECTED, error 8

My kernel is a 2.6.27 kernel.org build on a Red Hat Distribution : Red Hat 
Enterprise Linux Server release 5.3 Beta (Tikanga).


Céline.

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