[...]
   esp0 targ 2 lun 0: <MAXTOR  LXT-535S        8.73> SCSI1 direct fixed
   sd2 at scsibus0: 510MB, 1546 cyl, 11 head, 61 sec, 512 bytes/sec
   [...]

   When I use new kernel(I made it from the current this morning), those
   ``timed out'' messages appear at probing LXT-535S.
   ``esp0 targ 2 lun 0: ...'' was displayed, but at 2nd line, only ``sd2
   at scsibus0:'' was displayed. After this, I got ``timed out''
   messages. What is wrong?

This is a quite different problem than what I was replying to before.
I don't know what causes it, but it sounds like a bug in esp.c to me.