From owner-freebsd-stable@FreeBSD.ORG  Wed Nov 14 10:39:38 2012
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
 by hub.freebsd.org (Postfix) with ESMTP id 0D575A78;
 Wed, 14 Nov 2012 10:39:38 +0000 (UTC)
 (envelope-from markus.gebert@hostpoint.ch)
Received: from mail.adm.hostpoint.ch (mail.adm.hostpoint.ch
 [IPv6:2a00:d70:0:a::e0])
 by mx1.freebsd.org (Postfix) with ESMTP id 7CB3B8FC18;
 Wed, 14 Nov 2012 10:39:37 +0000 (UTC)
Received: from [2001:1620:2013:1:e8ec:d52:8672:17b] (port=51430)
 by mail.adm.hostpoint.ch with esmtpsa (TLSv1:AES128-SHA:128)
 (Exim 4.69 (FreeBSD)) (envelope-from <markus.gebert@hostpoint.ch>)
 id 1TYaND-000NWs-Hb; Wed, 14 Nov 2012 11:39:11 +0100
Mime-Version: 1.0 (Mac OS X Mail 6.2 \(1499\))
Subject: Re: thread taskq / unp_gc() using 100% cpu and stalling unix socket
 IPC
From: Markus Gebert <markus.gebert@hostpoint.ch>
In-Reply-To: <CAJ-Vmo=36Ob0NSeFVV4goLsaca7Aqc9B0zdPvYWEcNmBPsk40Q@mail.gmail.com>
Date: Wed, 14 Nov 2012 11:39:00 +0100
Message-Id: <DDCDD48E-DC96-4EAE-B84C-797D2A58CDE6@hostpoint.ch>
References: <6908B498-6978-4995-B081-8D504ECB5C0A@hostpoint.ch>
 <007F7A73-75F6-48A6-9C01-E7C179CDA48A@hostpoint.ch>
 <CAJ-Vmo=36Ob0NSeFVV4goLsaca7Aqc9B0zdPvYWEcNmBPsk40Q@mail.gmail.com>
To: Adrian Chadd <adrian@freebsd.org>
X-Mailer: Apple Mail (2.1499)
Content-Type: text/plain;
	charset=us-ascii
Content-Transfer-Encoding: quoted-printable
X-Content-Filtered-By: Mailman/MimeDel 2.1.14
Cc: freebsd-stable <freebsd-stable@freebsd.org>
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 14 Nov 2012 10:39:38 -0000


On 14.11.2012, at 02:12, Adrian Chadd <adrian@freebsd.org> wrote:

> Oh lordie, just hack the kernel to make IP_BINDANY usable by any uid,
> not just root.
>=20
> I was hoping that capabilitiies would actually be useful these days,
> but apparently not. :(
>=20
> Then you can stop this FD exchange nonsense and this problem should go =
away. :)

Thanks for the suggestion, I'll probably do that regardless of a fix to =
the unp_gc problem, because it's indeed unnecessary overhead in our =
scenario. Still that's a workaround you most probably don't want if you =
have untrusted users on the system or you end up hacking in something =
comparable to security.mac.seeotheruids.specificgid.


Markus