From owner-freebsd-net@FreeBSD.ORG Fri Sep 29 20:37:34 2006 Return-Path: X-Original-To: net@freebsd.org Delivered-To: freebsd-net@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DED0116A47B; Fri, 29 Sep 2006 20:37:34 +0000 (UTC) (envelope-from johan@nocrew.org) Received: from mxfep02.bredband.com (mxfep02.bredband.com [195.54.107.73]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9A47D43D45; Fri, 29 Sep 2006 20:37:33 +0000 (GMT) (envelope-from johan@nocrew.org) Received: from ironport.bredband.com ([195.54.107.82] [195.54.107.82]) by mxfep02.bredband.com with ESMTP id <20060929203732.JNQM21247.mxfep02.bredband.com@ironport.bredband.com>; Fri, 29 Sep 2006 22:37:32 +0200 Received: from c-c7aae255.027-12-67626717.cust.bredbandsbolaget.se (HELO six.nocrew.org) ([85.226.170.199]) by ironport.bredband.com with ESMTP; 29 Sep 2006 22:37:32 +0200 Received: from matilda (matilda [10.0.0.4]) by six.nocrew.org (Postfix) with ESMTP id 20AC515AEF; Fri, 29 Sep 2006 22:37:36 +0200 (CEST) From: Johan =?iso-8859-1?q?Bolmsj=F6?= To: Gleb Smirnoff Date: Fri, 29 Sep 2006 22:40:55 +0200 User-Agent: KMail/1.9.1 References: <200609272156.k8RLuV03033703@freefall.freebsd.org> <451D03D5.5070809@FreeBSD.org> <20060929113500.GR59833@cell.sick.ru> In-Reply-To: <20060929113500.GR59833@cell.sick.ru> MIME-Version: 1.0 Content-Type: text/plain; charset="koi8-r" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200609292240.55291.johan@nocrew.org> Cc: "Bruce M. Simpson" , net@freebsd.org Subject: Re: kern/95665: [if_tun] "ping: sendto: No buffer space available" with TUN interface (easily reproducable with test program) X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 Sep 2006 20:37:35 -0000 On Friday 29 September 2006 13:35, Gleb Smirnoff wrote: > Bruce, > > On Fri, Sep 29, 2006 at 12:30:29PM +0100, Bruce M. Simpson wrote: > B> >You kept the PR in feedback state for 11 hours, and then you > B> >suspend the PR! Are you expecting our users to reply immediately? > B> > > B> The user responded saying they could not reproduce the problem further > B> as they no longer had a FreeBSD system installed. > > Ohh, people again aren't adding neither bug-followup@ nor > freebsd-gnats-submit@ to the Cc of their replies. > > B> Despite my best > B> efforts I could not reproduce the problem with the test case given on > B> RELENG_6_1 and HEAD, as I documented in the PR. > > The subject problem has been reported several times on the mailing > lists, and I've also observed it myself in the past. There is definitely > a bug that brings tun(4) to a state when nothing can be transmitted. > > B> Apologies for any confusion caused. > > No problem. Hello, I'm the one who wrote the bug :-) I submitted it because I had found others (via googling) who had had what I could see similar mbuf problems with many different network cards (and no real solution presented). I thought I had a foolproof way to reproduce it so I thought it might be helpfull. Anyway my system I was running this test on is a AMD X2 (dual core). Could it be SMP related? I have no idea myself.. As said before, I don't have freebsd on this box any more otherwise I would have helped to test again with a later FreeBSD version. BR, Johan