From owner-freebsd-bugs@FreeBSD.ORG  Sun Mar 21 02:00:40 2004
Return-Path: <owner-freebsd-bugs@FreeBSD.ORG>
Delivered-To: freebsd-bugs@hub.freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id E30DF16A4CE
	for <freebsd-bugs@hub.freebsd.org>;
	Sun, 21 Mar 2004 02:00:40 -0800 (PST)
Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21])
	by mx1.FreeBSD.org (Postfix) with ESMTP id D50F143D1D
	for <freebsd-bugs@hub.freebsd.org>;
	Sun, 21 Mar 2004 02:00:40 -0800 (PST)
	(envelope-from gnats@FreeBSD.org)
Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1])
	i2LA0ebv073379	for <freebsd-bugs@freefall.freebsd.org>;
	Sun, 21 Mar 2004 02:00:40 -0800 (PST)
	(envelope-from gnats@freefall.freebsd.org)
Received: (from gnats@localhost)
	by freefall.freebsd.org (8.12.10/8.12.10/Submit) id i2LA0edX073378;
	Sun, 21 Mar 2004 02:00:40 -0800 (PST)
	(envelope-from gnats)
Date: Sun, 21 Mar 2004 02:00:40 -0800 (PST)
Message-Id: <200403211000.i2LA0edX073378@freefall.freebsd.org>
To: freebsd-bugs@FreeBSD.org
From: =?KOI8-R?Q?S=3Fren_Schmidt?= <sos@DeepCore.dk>
Subject: Re: kern/60526: Post-PAE stable SMP machine freezes
X-BeenThere: freebsd-bugs@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
Reply-To: =?KOI8-R?Q?S=3Fren_Schmidt?= <sos@DeepCore.dk>
List-Id: Bug reports <freebsd-bugs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-bugs>,
	<mailto:freebsd-bugs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-bugs>
List-Post: <mailto:freebsd-bugs@freebsd.org>
List-Help: <mailto:freebsd-bugs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-bugs>,
	<mailto:freebsd-bugs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 21 Mar 2004 10:00:41 -0000

The following reply was made to PR kern/60526; it has been noted by GNATS.

From: =?KOI8-R?Q?S=3Fren_Schmidt?= <sos@DeepCore.dk>
To: Eugene Grosbein <eugen@grosbein.pp.ru>
Cc: Doug White <dwhite@gumbysoft.com>,
	Eugene Grosbein <eugen@kuzbass.ru>, stable@FreeBSD.ORG,
	bug-followup@FreeBSD.ORG, sos@FreeBSD.ORG
Subject: Re: kern/60526: Post-PAE stable SMP machine freezes
Date: Sun, 21 Mar 2004 10:51:10 +0100

 Eugene Grosbein wrote:
 > Doug White wrote:
 > 
 > 
 >>Someone referred me to a EETimes article, and I have hundreds of Tyan
 >>S2510/S2518 boards I can reproduce the problem on under multiple operating
 >>systems.
 > 
 > 
 > I googled a little for ROSB4.
 > 
 > Here http://www.ussg.iu.edu/hypermail/linux/kernel/0206.1/1212.html
 > I've found the next statement:
 > 
 > 
 >>The system will lock solid when both IDE channels are accessed,
 >>and either one is using DMA. Since I want DMA, I simply abandon the
 >>secondary channel.
 > 
 > 
 > Is it possible do such a thing using FreeBSD?
 > 
 > Next, Linux seem to have a workarond(?) since 2002:
 > 
 > http://www.ussg.iu.edu/hypermail/linux/kernel/0206.1/0996.html
 > 
 > Soren, could you please look at this?
 
 That fix newer worked AFAIK, today linux just dont allow UDMA on the 
 ROSB4 at all.
 
 There is no good SW fix, and its also not established that a HW fix 
 exists as well, however I cannot reproduce the problem on my ASUS 
 CUR-DLS engineering sample, but ASUS wont tell anything about it...
 
 -- 
 -S?ren