195 Need replacement for nfs/lockd+klm
Reviewed by: Gordon Ross <gordon.ross@nexenta.com>
Reviewed by: Jeremy Jones <jeremy@delphix.com>
Reviewed by: Jeff Biseda <jbiseda@delphix.com>

*** 22,31 ****
--- 22,32 ----
   * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  /*
   * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
+  * Copyright (c) 2012 by Delphix. All rights reserved.
   */
  
  /*
   * Multithreaded STREAMS Local Transport Provider.
   *
*** 4250,4260 ****
  
  
  static void
  tl_connected_cots_addr_req(mblk_t *mp, tl_endpt_t *tep)
  {
!         tl_endpt_t              *peer_tep;
          size_t                  ack_sz;
          mblk_t                  *ackmp;
          struct T_addr_ack       *taa;
          uchar_t                 *addr_startp;
  
--- 4251,4261 ----
  
  
  static void
  tl_connected_cots_addr_req(mblk_t *mp, tl_endpt_t *tep)
  {
!         tl_endpt_t              *peer_tep = tep->te_conp;
          size_t                  ack_sz;
          mblk_t                  *ackmp;
          struct T_addr_ack       *taa;
          uchar_t                 *addr_startp;
  
*** 4261,4275 ****
          if (tep->te_closing) {
                  freemsg(mp);
                  return;
          }
  
          ASSERT(tep->te_state >= TS_IDLE);
  
          ack_sz = sizeof (struct T_addr_ack);
          ack_sz += T_ALIGN(tep->te_alen);
-         peer_tep = tep->te_conp;
          ack_sz += peer_tep->te_alen;
  
          ackmp = tpi_ack_alloc(mp, ack_sz, M_PCPROTO, T_ADDR_ACK);
          if (ackmp == NULL) {
                  (void) (STRLOG(TL_ID, tep->te_minor, 1, SL_TRACE|SL_ERROR,
--- 4262,4280 ----
          if (tep->te_closing) {
                  freemsg(mp);
                  return;
          }
  
+         if (peer_tep == NULL || peer_tep->te_closing) {
+                 tl_error_ack(tep->te_wq, mp, TSYSERR, ECONNRESET, T_ADDR_REQ);
+                 return;
+         }
+ 
          ASSERT(tep->te_state >= TS_IDLE);
  
          ack_sz = sizeof (struct T_addr_ack);
          ack_sz += T_ALIGN(tep->te_alen);
          ack_sz += peer_tep->te_alen;
  
          ackmp = tpi_ack_alloc(mp, ack_sz, M_PCPROTO, T_ADDR_ACK);
          if (ackmp == NULL) {
                  (void) (STRLOG(TL_ID, tep->te_minor, 1, SL_TRACE|SL_ERROR,