From owner-freebsd-ipfw@FreeBSD.ORG Sun Jun 27 07:00:13 2010 Return-Path: Delivered-To: freebsd-ipfw@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5F56B106566C for ; Sun, 27 Jun 2010 07:00:13 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 3456A8FC14 for ; Sun, 27 Jun 2010 07:00:13 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id o5R70CZH074160 for ; Sun, 27 Jun 2010 07:00:12 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id o5R70Cb8074158; Sun, 27 Jun 2010 07:00:12 GMT (envelope-from gnats) Date: Sun, 27 Jun 2010 07:00:12 GMT Message-Id: <201006270700.o5R70Cb8074158@freefall.freebsd.org> To: freebsd-ipfw@FreeBSD.org From: Shant Kassardjian Cc: Subject: RE: amd64/148157: IPFW in kernel nat BUG found in FreeBSD 8.1-PRERELEASE X-BeenThere: freebsd-ipfw@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Shant Kassardjian List-Id: IPFW Technical Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 27 Jun 2010 07:00:13 -0000 The following reply was made to PR amd64/148157; it has been noted by GNATS. From: Shant Kassardjian To: Cc: Subject: RE: amd64/148157: IPFW in kernel nat BUG found in FreeBSD 8.1-PRERELEASE Date: Sun, 27 Jun 2010 06:47:13 +0000 --_2b7ea459-4f83-4d6d-bb13-f83fbb741e5c_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Garrett=2C I just tried to perform a kernel dump with dumpdev=3D"YES" and had no luck= =2C I keep getting: Cannot dump. Device not defined or unavailable. my custom kernel is set to disable: #options KTRACE # ktrace(1) support #options KDTRACE_FRAME # Ensure frames are compiled in #options KDTRACE_HOOKS # Kernel DTrace hooks must recompile kernel to enable tracing?=20 I'm currently using the intel pro 1000 chipset / em0 driver=2C I've been ex= periencing all sorts of network stability problems for a while now(ever sin= ce I upgrade to stable a month ago). It looks like the em0 driver for amd64= needs alot of work however a couple of days ago when I recompiled my box t= o the latest stable 8.1-prerelease I saw alot of improvments and my ipfw/du= mmynet firewall seems to be running stable with no crashes/lockups so far..= .=20 It is very easy for me to replicate the in nat kernel problem=2C i just can= t get a dump to provide you the additional info. Let me know how I can help. Thanks=2C Shant K > Date: Sat=2C 26 Jun 2010 11:52:01 -0700 > Subject: Re: amd64/148157: IPFW in kernel nat BUG found in FreeBSD 8.1-P= RERELEASE > From: yanefbsd@gmail.com > To: pookme@hotmail.com > CC: freebsd-gnats-submit@freebsd.org >=20 > Hi=2C > Do you have a backtrace for the issue (bt from ddb=2C or the > equivalent bt from kgdb)? I'm asking because I saw various issues > running with in kernel nat as well in various bits of the kernel -- > one was the ip routing code=2C one was the ipfw_nat code=2C and the other > was the network driver that I was using=2C bce(4). All items suggested > that there's a locking issue. The reference to the mail thread I > started is here: > http://lists.freebsd.org/pipermail/freebsd-net/2010-June/025594.html > (note that it's an issue with 8.1-* and 9-CURRENT). > Thanks=2C > -Garrett =20 _________________________________________________________________ Turn down-time into play-time with Messenger games http://go.microsoft.com/?linkid=3D9734385= --_2b7ea459-4f83-4d6d-bb13-f83fbb741e5c_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Garrett=2C


I just tried to perform a kernel dump with dumpdev= =3D"YES" and had no luck=2C I keep getting:


Cannot dump. Device = not defined or unavailable.


my custom kernel is set to disable:<= BR>

#options KTRACE # ktrace(1) support
<= BR>#options KDTRACE_FRAME # Ensure frames are compiled in<= BR>#options KDTRACE_HOOKS # Kernel DTrace hooks

must recompile kernel to enable tracing?=A0


I'm currently using= the intel pro 1000 chipset / em0 driver=2C I've been experiencing all sort= s of network stability problems for a while now(ever since I upgrade to sta= ble a month ago). It looks like the em0 driver for amd64 needs alot of work= however a couple of days ago when I recompiled my box to the latest stable= 8.1-prerelease I saw alot of improvments and my ipfw/dummynet firewall see= ms to be running stable with no crashes/lockups so far...=A0


It = is very easy for me to replicate the in nat kernel problem=2C i just cant g= et a dump to provide you the additional info.


Let me know how I = can help.




Thanks=2C
Shant K



>=3B Dat= e: Sat=2C 26 Jun 2010 11:52:01 -0700
>=3B Subject: Re: amd64/148157: I= PFW in kernel nat BUG found in FreeBSD 8.1-PRERELEASE
>=3B From: yane= fbsd@gmail.com
>=3B To: pookme@hotmail.com
>=3B CC: freebsd-gnats= -submit@freebsd.org
>=3B
>=3B Hi=2C
>=3B Do you have a = backtrace for the issue (bt from ddb=2C or the
>=3B equivalent bt from= kgdb)? I'm asking because I saw various issues
>=3B running with in k= ernel nat as well in various bits of the kernel --
>=3B one was the ip= routing code=2C one was the ipfw_nat code=2C and the other
>=3B was t= he network driver that I was using=2C bce(4). All items suggested
>=3B= that there's a locking issue. The reference to the mail thread I
>=3B= started is here:
>=3B http://lists.freebsd.org/pipermail/freebsd-net/= 2010-June/025594.html
>=3B (note that it's an issue with 8.1-* and 9-C= URRENT).
>=3B Thanks=2C
>=3B -Garrett

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