From owner-freebsd-hackers@FreeBSD.ORG  Thu Aug  2 02:30:17 2007
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: hackers@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 2A12816A421;
	Thu,  2 Aug 2007 02:30:17 +0000 (UTC)
	(envelope-from yrao@force10networks.com)
Received: from mx.force10networks.com (nat-eqx.force10networks.com
	[69.25.56.27])
	by mx1.freebsd.org (Postfix) with ESMTP id EB53D13C46B;
	Thu,  2 Aug 2007 02:30:16 +0000 (UTC)
	(envelope-from yrao@force10networks.com)
Received: from mx.force10networks.com ([10.11.0.215]) by
	mx.force10networks.com with Microsoft SMTPSVC(6.0.3790.3959); 
	Wed, 1 Aug 2007 19:30:43 -0700
X-MimeOLE: Produced By Microsoft Exchange V6.5
Content-class: urn:content-classes:message
MIME-Version: 1.0
Content-Type: text/plain;
	charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
Date: Wed, 1 Aug 2007 19:30:24 -0700
Message-ID: <9E2742C54E161041A53F36F9A8DC31BE1F98C0@EXCH-CLUSTER-04.force10networks.com>
In-Reply-To: <46B135AE.5030002@u.washington.edu>
X-MS-Has-Attach: 
X-MS-TNEF-Correlator: 
Thread-Topic: core dump hangs
Thread-Index: AcfUpfdWURooiEm+Txi5vhzumYX/FQABv4qg
References: <9E2742C54E161041A53F36F9A8DC31BE1F98B3@EXCH-CLUSTER-04.force10networks.com>
	<46B135AE.5030002@u.washington.edu>
From: "Yong Rao" <yrao@force10networks.com>
To: "Garrett Cooper" <youshi10@u.washington.edu>
X-OriginalArrivalTime: 02 Aug 2007 02:30:43.0466 (UTC)
	FILETIME=[200026A0:01C7D4AD]
X-Mailman-Approved-At: Thu, 02 Aug 2007 02:48:31 +0000
Cc: remko@FreeBSD.org, hackers@FreeBSD.org, remko@elvandar.org
Subject: RE: core dump hangs
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, 
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 02 Aug 2007 02:30:17 -0000

We use 4BSD (options SCHED_4BSD).

Thanks,
-Yong

-----Original Message-----
From: Garrett Cooper [mailto:youshi10@u.washington.edu]=20
Sent: Wednesday, August 01, 2007 6:39 PM
To: Yong Rao
Cc: hackers@FreeBSD.org; remko@FreeBSD.org; remko@elvandar.org
Subject: Re: core dump hangs

Yong Rao wrote:
> Hi,=20
>
> =20
>
> Recently, while we developed our own FreeBSD driver, we found the core
> dump does not work (with SMP options and dual CPUs). We have already
> filed a PR for this bug. See
> http://www.freebsd.org/cgi/query-pr.cgi?pr=3D114370.
>
> =20
>
> I am wondering if anybody on this list is interested in investigating
> this issue. This bug is sort of blocking our development work because
> the core could not be dumped out when our driver crash happens.
>
> =20
>
> Thanks a lot for your attention.
>
> =20
>
> Yong Rao
>
> Force10 Networks, Inc.
>
> 408 571 3617(w)

Which scheduler are you using? ULE or 4BSD?
-Garrett