From owner-freebsd-net@FreeBSD.ORG Mon Jun 4 15:50:48 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id C7CD1106564A for ; Mon, 4 Jun 2012 15:50:48 +0000 (UTC) (envelope-from freebsd@damnhippie.dyndns.org) Received: from qmta15.emeryville.ca.mail.comcast.net (qmta15.emeryville.ca.mail.comcast.net [76.96.27.228]) by mx1.freebsd.org (Postfix) with ESMTP id A9E098FC1C for ; Mon, 4 Jun 2012 15:50:48 +0000 (UTC) Received: from omta23.emeryville.ca.mail.comcast.net ([76.96.30.90]) by qmta15.emeryville.ca.mail.comcast.net with comcast id JDr41j00C1wfjNsAFFpgqz; Mon, 04 Jun 2012 15:49:40 +0000 Received: from damnhippie.dyndns.org ([24.8.232.202]) by omta23.emeryville.ca.mail.comcast.net with comcast id JFpe1j00F4NgCEG8jFpfxm; Mon, 04 Jun 2012 15:49:40 +0000 Received: from [172.22.42.240] (revolution.hippie.lan [172.22.42.240]) by damnhippie.dyndns.org (8.14.3/8.14.3) with ESMTP id q54FnbaV021508; Mon, 4 Jun 2012 09:49:37 -0600 (MDT) (envelope-from freebsd@damnhippie.dyndns.org) From: Ian Lepore To: Michael Pounov In-Reply-To: <20120604173154.a54b48ac.misho@aitbg.com> References: <20120604173154.a54b48ac.misho@aitbg.com> Content-Type: text/plain; charset="us-ascii" Date: Mon, 04 Jun 2012 09:49:36 -0600 Message-ID: <1338824976.36051.197.camel@revolution.hippie.lan> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port Content-Transfer-Encoding: 7bit Cc: freebsd-net@freebsd.org, freebsd-current@freebsd.org Subject: Re: bpf kernel crash 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: Mon, 04 Jun 2012 15:50:48 -0000 On Mon, 2012-06-04 at 17:31 +0300, Michael Pounov wrote: > Kernel crash when you wish to change interface name from vlan0 to other name > > It seems to be in arrival/departure events. > > 1) when I set up vlan0 and change name to mgmt and after that destroy mgmt. > kernel crash in bpfdetach() at line 2495. where it tries to find interface structure. > 2) when I setup vlan0, change name to mgmt and set ip address. After few seconds > kernel crash in vlan_transmit() at line 1029. where it tries to push mbufs to bpf interface, but it is NULL. > It sounds like that might be the same problem as this, maybe the same patch will fix it for you... http://lists.freebsd.org/pipermail/freebsd-current/2012-June/034408.html -- Ian