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

JINMEI Tatuya / 神明達哉 Jinmei_Tatuya at isc.org
Wed Jul 23 19:20:16 UTC 2008


At Wed, 23 Jul 2008 16:29:01 +0200,
Erwin Lansing <erwin at FreeBSD.org> wrote:

> I upgraded our moderately loaded FreeBSD 7.0 amd64 recursors from
> 9.4.2-P1 to 9.4.3b2 to fix the open file descriptors issue.  That
> certainly has helped in that respect with only half the number of
> open files (down to 4-500), and a 60-70% decrease in CPU time.
> Nice!
> 
> However, I am now getting the following error:
> Jul 23 16:16:47 ns3t4 named[48325]: socket.c:4245: unexpected error:
> Jul 23 16:16:47 ns3t4 named[48325]: 48/Address already in use
> 
> A quick look at the code shows that this is the error handling code, but
> I didn't get a hint from where it was called.  Any hints are
> appreciated.

This could happen in theory, but I believe it should be very rare.
Have you seen this often? (if so, there's something beyond what we
expected which needs to be investigated further).

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


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