It is observed in all set-up.
I tested it in stripe also. Same thing happen there also.

core generated:

#0  0xb74b56a6 in client_open_cbk (frame=0x9b853f8, hdr=0xb6300468, 
    hdrlen=40, iobuf=0x0) at client-protocol.c:3781

3781            fd    = local->fd;

(gdb) bt
#0  0xb74b56a6 in client_open_cbk (frame=0x9b853f8, hdr=0xb6300468, 
    hdrlen=40, iobuf=0x0) at client-protocol.c:3781
#1  0xb74b3b25 in protocol_client_interpret (this=0x9b47ea8, 
    trans=0x9b4a6a0, hdr_p=0xb6300468 "", hdrlen=40, iobuf=0x0)
    at client-protocol.c:5915
#2  0xb74b3ccf in protocol_client_pollin (this=0x9b47ea8, trans=0x9b4a6a0)
    at client-protocol.c:6209
#3  0xb74c3c42 in notify (this=0x9b47ea8, event=2, data=0x9b4a6a0)
    at client-protocol.c:6328
#4  0xb7ea5d9f in xlator_notify (xl=0x9b47ea8, event=2, data=0x9b4a6a0)
    at xlator.c:929
#5  0xb6c52aed in socket_event_poll_in (this=0x9b4a6a0) at socket.c:713
#6  0xb6c52bab in socket_event_handler (fd=9, idx=1, data=0x9b4a6a0, 
    poll_in=1, poll_out=0, poll_err=0) at socket.c:813
#7  0xb7ec130a in event_dispatch_epoll (event_pool=0x9b439a8) at event.c:804
#8  0xb7ec00d1 in event_dispatch (event_pool=0x9b853f8) at event.c:975
#9  0x0804bf55 in main (argc=6, argv=0xbf9ffa94) at glusterfsd.c:1378