glusterd crashed with following trace.

#0  0x00002b42d9715f6c in rpcsvc_submit_generic (req=0x2aaaaad0903c, proghdr=0x7fffc4fbbde0, hdrcount=0, payload=0x0, payloadcount=0, iobref=0x5d1c038)
    at rpcsvc.c:1539
1539                    gf_log (GF_RPCSVC, GF_LOG_ERROR, "failed to submit message "
(gdb) bt
#0  0x00002b42d9715f6c in rpcsvc_submit_generic (req=0x2aaaaad0903c, proghdr=0x7fffc4fbbde0, hdrcount=0, payload=0x0, payloadcount=0, iobref=0x5d1c038)
    at rpcsvc.c:1539
#1  0x00002b42d97162b1 in rpcsvc_error_reply (req=0x2b42d971dbfa) at rpcsvc.c:1577
#2  0x00002b42d97167b4 in rpcsvc_handle_rpc_call (svc=0x5cec2d8, trans=<value optimized out>, msg=0x5d1c778) at rpcsvc.c:998
#3  0x00002b42d9716a5b in rpcsvc_notify (trans=0x5d1b0b8, mydata=0x2b42d971dbfa, event=<value optimized out>, data=0x5d1c778) at rpcsvc.c:1088
#4  0x00002b42d971778c in rpc_transport_notify (this=0x2b42d971dbfa, event=3648120344, data=0x606) at rpc-transport.c:1142
#5  0x00002aaaaad9e36f in socket_event_poll_in (this=0x5d1b0b8) at socket.c:1619
#6  0x00002aaaaad9e4f8 in socket_event_handler (fd=<value optimized out>, idx=6, data=0x5d1b0b8, poll_in=1, poll_out=0, poll_err=0) at socket.c:1733
#7  0x00002b42d94ddee7 in event_dispatch_epoll_handler (event_pool=0x5ce5198) at event.c:812
#8  event_dispatch_epoll (event_pool=0x5ce5198) at event.c:876
#9  0x00000000004046ed in main (argc=1, argv=0x7fffc4fbc608) at glusterfsd.c:1410
(gdb) info thr
  4 Thread 7686  0x000000391d40e838 in do_sigwait () from /lib64/libpthread.so.0
  3 Thread 7687  0x000000391d40d91b in read () from /lib64/libpthread.so.0
  2 Thread 7688  0x000000391d40d91b in read () from /lib64/libpthread.so.0
* 1 Thread 7685  0x00002b42d9715f6c in rpcsvc_submit_generic (req=0x2aaaaad0903c, proghdr=0x7fffc4fbbde0, hdrcount=0, payload=0x0, payloadcount=0, iobref=0x5d1c038)
    at rpcsvc.c:1539
(gdb) f -0
#0  0x00002b42d9715f6c in rpcsvc_submit_generic (req=0x2aaaaad0903c, proghdr=0x7fffc4fbbde0, hdrcount=0, payload=0x0, payloadcount=0, iobref=0x5d1c038)
    at rpcsvc.c:1539
1539                    gf_log (GF_RPCSVC, GF_LOG_ERROR, "failed to submit message "
(gdb) f 0
#0  0x00002b42d9715f6c in rpcsvc_submit_generic (req=0x2aaaaad0903c, proghdr=0x7fffc4fbbde0, hdrcount=0, payload=0x0, payloadcount=0, iobref=0x5d1c038)
    at rpcsvc.c:1539
1539                    gf_log (GF_RPCSVC, GF_LOG_ERROR, "failed to submit message "
(gdb) l
1534            ret = rpcsvc_transport_submit (trans, &recordhdr, 1, proghdr, hdrcount,
1535                                           payload, payloadcount, iobref,
1536                                           req->trans_private);
1537  
1538            if (ret == -1) {
1539                    gf_log (GF_RPCSVC, GF_LOG_ERROR, "failed to submit message "
1540                            "(XID: 0x%lx, Program: %s, ProgVers: %d, Proc: %d) to "
1541                            "rpc-transport (%s)", req->xid, req->prog->progname,
1542                            req->prog->progver, req->procnum, trans->name);
1543            } else {
(gdb) p *req
$1 = {trans = 0x5d1b0b8, svc = 0x5cec2d8, prog = 0x0, xid = 1, prognum = 1238463, progver = 1, procnum = 5, type = 0, uid = 0, gid = 0, pid = 0, lk_owner = 0,
  gfs_id = 0, auxgids = {0 <repeats 16 times>}, auxgidcount = 0, msg = {{iov_base = 0x2b42da329080, iov_len = 12}, {iov_base = 0x0, iov_len = 0}}, count = 1,
  iobref = 0x5d1b9d8, rpc_status = 0, rpc_err = 1, auth_err = 0, txlist = {next = 0x2aaaaad0910c, prev = 0x2aaaaad0910c}, payloadsize = 0, cred = {flavour = 5,
    datalen = 88, authdata = '\000' <repeats 399 times>}, verf = {flavour = 0, datalen = 0, authdata = '\000' <repeats 399 times>}, private = 0x0, trans_private = 0x0}
(gdb) 


I have archived the core file and logs.