Relatively deterministic panic with sendfile(2) when running tests in the sxlock code

[Gleb Smirnoff]

  Enji,

can you please check that with this patch all your tests pass?

-- 
Gleb Smirnoff
-------------- next part --------------
A non-text attachment was scrubbed...
Name: sendfile-listening.diff
Type: text/x-diff
Size: 410 bytes
Desc: not available
URL: <http://lists.freebsd.org/pipermail/freebsd-net/attachments/20181015/6e00418a/attachment.diff>