Why do I see "open_socket_in(): setsockopt: SO_REUSEPORT = true on port 445 failed with error = Protocol not available" from smbd?

Solution Unverified - Updated -

Issue

  • Why do I see "open_socket_in(): setsockopt: SO_REUSEPORT = true on port 445 failed with error = Protocol not available" from smbd?

/var/log/messages sample:

smbd[xxxx]: [2015/11/25 10:56:24.609354,  0] lib/util_sock.c:628(open_socket_in)
smbd[xxxx]:   open_socket_in(): setsockopt: SO_REUSEPORT = true on port 445 failed with error = Protocol not available

Environment

  • Red Hat Enterprise Linux 6(Before kernel-2.6.32-431.el6)
  • samba

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