X11 _X11TransSocketINETConnect core dump or ETIMEDOUT

[=?gb2312?q?=FFffffd4=FFffffc6=FFffffc9=FFfffffa=20=FFffffcd=FFfffff5?=]

I call XtOpenDisplay under solaris 9(X11 release 4), when set DISPLAY = hostname:0.0 the X11TransSocketINETConnect failed because ETIMEDOUT:
  setsockopt(3, SOL_SOCKET, SO_KEEPALIVE, 0xFFFFFFFF7FFFE45C, 4, 1) = 0
connect(3, 0xFFFFFFFF7FFFE460, 32, 1) (sleeping...)
connect(3, 0xFFFFFFFF7FFFE460, 32, 1)           Err#145 ETIMEDOUT
close(3)                                        = 0
fstat(2, 0xFFFFFFFF7FFFD8A0)                    = 0
   
  when set DISPLAY = *.*.*.*:0.0 , then the X11TransSocketINETConnect  also failed :
  so_socket(PF_INET6, SOCK_STREAM, IPPROTO_IP, "", 1) = 3
setsockopt(3, tcp, TCP_NODELAY, 0xFFBFEAFC, 4, 1) = 0
setsockopt(3, SOL_SOCKET, SO_KEEPALIVE, 0xFFBFEAFC, 4, 1) = 0
    Incurred fault #6, FLTBOUNDS  %pc = 0xFEFDFEA0
      siginfo: SIGSEGV SEGV_MAPERR addr=0x00000002
    Received signal #11, SIGSEGV [default]
      siginfo: SIGSEGV SEGV_MAPERR addr=0x00000002
   
  Does anybody can help me? Thanks!!

       
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