socket.c:4245: unexpected error: 48/Address already in use

[JINMEI Tatuya / 神明達哉]

At Thu, 24 Jul 2008 10:59:38 +0200,
Erwin Lansing <erwin at FreeBSD.org> wrote:
> > Okay, then I'd like to know what kind of packets caused this errors.
> > Could you apply the patch available at:
> >   http://www.jinmei.org/socket.c.943b2.diff
> > and have it dump the detailed version of logs?
> > 
> Jul 24 10:40:42 ns named[79356]: socket.c:4259: unexpected error:
> Jul 24 10:40:42 ns named[79356]: [local:0.0.0.0#51911, dst:192.42.93.30#53, type:1] 48/Address already in use
> 
> I'll send you a private mail after it's been running for a few more
> hours.

I've found a bug that may make this happen more frequently than
expected.  Could you try the attached patch?  I've also copied the
patch at:
http://www.jinmei.org/patch/dispatch.c.diff
in case attachment doesn't work.

I believe this should at least *reduce* the number of these logs.
I've also found another possible code path that can cause this
message, but fix for that would be much more complicated so I'd first
like to know how the fix for the trivial bug works.

Thanks,

---
JINMEI, Tatuya
Internet Systems Consortium, Inc.