FreeBSD 7.0-STABLE: "mount_nfs" vs "mount -t nfs": problems with second one, UDP timeouts and ICMP ports unreach?!

[Lev Serebryakov]

Lev Serebryakov wrote:

>   You see? b answer with "UDP port unreachable" on each RPC reply!
  Additional info.
  ktrace from "mount -t nfs":

=============================================================
  65962 mount_nfs 0.006679 RET   sendto 40/0x28
  65962 mount_nfs 0.006682 CALL 
kevent(0x4,0x638110,0x1,0x7fffffffe2d0,0x1,0x7fffffffe310)
  65962 mount_nfs 10.218001 GIO   fd 4 wrote 32 bytes
  65962 mount_nfs 10.218018 GIO   fd 4 read 0 bytes
        ""
  65962 mount_nfs 10.218023 RET   kevent 0
  65962 mount_nfs 10.218029 CALL  gettimeofday(0x7fffffffe320,0)
  65962 mount_nfs 10.218035 RET   gettimeofday 0
  65962 mount_nfs 10.218040 CALL  close(0x4)
  65962 mount_nfs 10.218049 RET   close 0
  65962 mount_nfs 10.218077 CALL  close(0x3)
  65962 mount_nfs 10.218087 RET   close 0
  65962 mount_nfs 10.218101 CALL  write(0x2,0x7fffffffdd40,0x37)
  65962 mount_nfs 10.218117 GIO   fd 2 wrote 55 bytes
        "[udp] gateway:/usr/ports: NFSPROC_NULL: RPC: Timed out
        "
=============================================================

   ktrace (same piece) from "mount_nfs":
=============================================================
  93109 mount_nfs 0.005458 RET   sendto 40/0x28
  93109 mount_nfs 0.005462 CALL 
kevent(0x4,0x638110,0x1,0x7fffffffe2a0,0x1,0x7fffffffe2e0)
  93109 mount_nfs 0.005724 GIO   fd 4 wrote 32 bytes
  93109 mount_nfs 0.005738 GIO   fd 4 read 32 bytes
  93109 mount_nfs 0.005743 RET   kevent 1
  93109 mount_nfs 0.005748 CALL  recvfrom(0x3,0x638134,0x2260,0,0,0)
  93109 mount_nfs 0.005756 GIO   fd 3 read 24 bytes
  93109 mount_nfs 0.005761 RET   recvfrom 24/0x18
  93109 mount_nfs 0.005767 CALL  close(0x4)
  93109 mount_nfs 0.005775 RET   close 0
  93109 mount_nfs 0.005781 CALL  close(0x3)
  93109 mount_nfs 0.005788 RET   close 0
=============================================================