Date: Tue, 17 Jan 2012 13:30:13 GMT From: Jim Pirzyk <pirzyk@FreeBSD.org> To: freebsd-bugs@FreeBSD.org Subject: Re: bin/164081: sockstat not reporting all open sockets Message-ID: <201201171330.q0HDUDJR059703@freefall.freebsd.org>
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The following reply was made to PR bin/164081; it has been noted by GNATS.
From: Jim Pirzyk <pirzyk@FreeBSD.org>
To: Jilles Tjoelker <jilles@stack.nl>
Cc: bug-followup@FreeBSD.org
Subject: Re: bin/164081: sockstat not reporting all open sockets
Date: Tue, 17 Jan 2012 08:13:59 -0500
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So maybe in light of that, we should change this ticket to update the =
man page to document this case too?
- - JimP
On Jan 13, 2012, at 7:03 PM, Jilles Tjoelker wrote:
>> [netstat reports sockets that sockstat does not]
>=20
> The sockstat utility checks all file descriptors open by all processes
> looking for sockets, while netstat shows all kernel-level sockets. =
This
> may mismatch in many ways: a process may have closed its descriptor =
but
> TCP still needs to maintain some state like TIME_WAIT (as mentioned in
> the sockstat(1) man page), multiple descriptors may exist for a single
> socket and kernel code (like nlockmgr) may use the socket(9) API
> directly so there is no descriptor. However, any socket file =
descriptor
> shown by sockstat must correspond to a kernel-level socket shown by
> netstat.
>=20
> This does appear to be intended, although it is surprising and not
> documented very well.
>=20
> --=20
> Jilles Tjoelker
- --- @(#) $Id: dot.signature,v 1.15 2007/12/27 15:06:13 pirzyk Exp $
__o jim@pirzyk.org =
--------------------------------------------------
_'\<,_
(*)/ (*) I'd rather be out biking.
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