nslcd sometimes causes segfault at boot time.

Issue

• nslcd sometimes causes segfault at boot time.

  (gdb) bt
  #0  __GI___pthread_mutex_lock (mutex=mutex@entry=0x0) at pthread_mutex_lock.c:50
  #1  0x00007fe3e560dcb9 in PR_Lock (lock=0x0) at ../../../nspr/pr/src/pthreads/ptsynch.c:177
  #2  0x00007fe3e5613d45 in pt_AttachThread () at ../../../nspr/pr/src/pthreads/ptthread.c:291
  #3  PR_GetCurrentThread () at ../../../nspr/pr/src/pthreads/ptthread.c:652
  #4  0x00007fe3e5604c7f in PR_SetError (code=code@entry=-8038, osErr=osErr@entry=0) at ../../../nspr/pr/src/misc/prerror.c:25
  #5  0x00007fe3e5c48257 in PORT_SetError_Util (value=value@entry=-8038) at secport.c:162
  #6  0x00007fe3e5eb5abf in SECMOD_RestartModules (force=force@entry=0) at pk11util.c:1538
  #7  0x00007fe3e7f86886 in tlsm_deferred_init (arg=0x7fe3cc00a280) at tls_m.c:1743
  #8  tlsm_deferred_ctx_init (arg=0x7fe3cc00a280) at tls_m.c:2237
  #9  0x00007fe3e5605b15 in PR_CallOnceWithArg (once=once@entry=0x7fe3cc00a2d0, func=func@entry=0x7fe3e7f86850 <tlsm_deferred_ctx_init>, arg=arg@entry=0x7fe3cc00a280) at ../../../nspr/pr/src/misc/prinit.c:804
  #10 0x00007fe3e7f85081 in tlsm_session_new (ctx=0x7fe3cc00a280, is_server=0) at tls_m.c:2624
  #11 0x00007fe3e7f81f04 in alloc_handle (ctx_arg=<optimized out>, is_server=<optimized out>) at tls2.c:292
  #12 0x00007fe3e7f822bc in ldap_int_tls_connect (ld=ld@entry=0x7fe3cc000c60, host=host@entry=0x7fe3cc009150 "10.254.83.12", conn=0x7fe3cc00a180) at tls2.c:337
  #13 0x00007fe3e7f82ae8 in ldap_int_tls_start (ld=ld@entry=0x7fe3cc000c60, conn=conn@entry=0x7fe3cc00a180, srv=srv@entry=0x7fe3cc0090d0) at tls2.c:872
  #14 0x00007fe3e7f5bf31 in ldap_int_open_connection (ld=ld@entry=0x7fe3cc000c60, conn=conn@entry=0x7fe3cc00a180, srv=0x7fe3cc0090d0, async=async@entry=0) at open.c:448
  #15 0x00007fe3e7f6f60d in ldap_new_connection (ld=ld@entry=0x7fe3cc000c60, srvlist=srvlist@entry=0x7fe3cc000d28, use_ldsb=use_ldsb@entry=1, connect=connect@entry=1, bind=bind@entry=0x0, m_req=m_req@entry=0, m_res=m_res@entry=0) at request.c:484
  #16 0x00007fe3e7f5b30f in ldap_open_defconn (ld=ld@entry=0x7fe3cc000c60) at open.c:41
  #17 0x00007fe3e7f70b38 in ldap_send_initial_request (ld=ld@entry=0x7fe3cc000c60, msgtype=msgtype@entry=96, dn=dn@entry=0x7fe3e7f906eb "", ber=ber@entry=0x7fe3cc000f90, msgid=msgid@entry=1) at request.c:130
  #18 0x00007fe3e7f65626 in ldap_sasl_bind (ld=ld@entry=0x7fe3cc000c60, dn=0x7fe3e7f906eb "", dn@entry=0x0, mechanism=mechanism@entry=0x0, cred=cred@entry=0x7fe3e3ac3540, sctrls=sctrls@entry=0x0, cctrls=<optimized out>, msgidp=msgidp@entry=0x7fe3e3ac34d4) at sasl.c:148
  #19 0x00007fe3e7f65ba9 in ldap_sasl_bind_s (ld=ld@entry=0x7fe3cc000c60, dn=dn@entry=0x0, mechanism=mechanism@entry=0x0, cred=cred@entry=0x7fe3e3ac3540, sctrls=sctrls@entry=0x0, cctrls=cctrls@entry=0x0, servercredp=servercredp@entry=0x0) at sasl.c:182
  #20 0x00007fe3e7f66445 in ldap_simple_bind_s (ld=0x7fe3cc000c60, dn=0x0, passwd=0x0) at sbind.c:113
  #21 0x00007fe3e88281dd in do_bind (ld=<optimized out>, binddn=binddn@entry=0x7fe3cc0008c8 "", bindpw=bindpw@entry=0x7fe3cc0009c8 "", uri=<optimized out>) at myldap.c:494
  #22 0x00007fe3e8829286 in do_open (session=0x7fe3cc0008c0) at myldap.c:801
  #23 do_try_search (search=0x7fe3cc000ba0) at myldap.c:835
  #24 do_retry_search (search=search@entry=0x7fe3cc000ba0) at myldap.c:969
  #25 0x00007fe3e8829a90 in myldap_search (session=session@entry=0x7fe3cc0008c0, base=<optimized out>, scope=2, filter=filter@entry=0x7fe3e3ac3740 "(&(objectClass=posixAccount)(uid=colord))", attrs=attrs@entry=0x7fe3e8a47520 <attrs.7483>, rcp=rcp@entry=0x0)
      at myldap.c:1071
  #26 0x00007fe3e8834724 in uid2entry (session=session@entry=0x7fe3cc0008c0, uid=uid@entry=0x7fe3e3ac47e0 "colord", rcp=rcp@entry=0x0) at passwd.c:366
  #27 0x00007fe3e88347c3 in uid2dn (session=session@entry=0x7fe3cc0008c0, uid=uid@entry=0x7fe3e3ac47e0 "colord", buf=buf@entry=0x7fe3e3ac48e0 "", buflen=buflen@entry=256) at passwd.c:386
  #28 0x00007fe3e8830f30 in mkfilter_group_bymember (buflen=4096, buffer=0x7fe3e3ac4c40 "", uid=0x7fe3e3ac47e0 "colord", session=0x7fe3cc0008c0) at group.c:132
  #29 nslcd_group_bymember (fp=fp@entry=0x7fe3cc000a60, session=session@entry=0x7fe3cc0008c0) at group.c:349
  #30 0x00007fe3e8826998 in handleconnection (session=0x7fe3cc0008c0, sock=7) at nslcd.c:433
  #31 worker (arg=<optimized out>) at nslcd.c:620
  #32 0x00007fe3e7918dc5 in start_thread (arg=0x7fe3e3ac6700) at pthread_create.c:308
  #33 0x00007fe3e764621d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113