From owner-aic7xxx Thu Aug 30 15:36:32 2001 Delivered-To: aic7xxx@freebsd.org Received: from femail45.sdc1.sfba.home.com (femail45.sdc1.sfba.home.com [24.254.60.39]) by hub.freebsd.org (Postfix) with ESMTP id 3EBDB37B405 for ; Thu, 30 Aug 2001 15:36:30 -0700 (PDT) (envelope-from battraw@home.com) Received: from home.com ([24.177.167.28]) by femail45.sdc1.sfba.home.com (InterMail vM.4.01.03.20 201-229-121-120-20010223) with ESMTP id <20010830223411.TLOD25401.femail45.sdc1.sfba.home.com@home.com>; Thu, 30 Aug 2001 15:34:11 -0700 Message-ID: <3B8EBF90.8000806@home.com> Date: Thu, 30 Aug 2001 15:34:56 -0700 From: Larry Battraw User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.3) Gecko/20010801 X-Accept-Language: en-us MIME-Version: 1.0 To: "Justin T. Gibbs" Cc: aic7xxx@FreeBSD.ORG Subject: Re: 2940U2W under Linux 2.4.x References: <200108292221.f7TMLlY02779@aslan.scsiguy.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-aic7xxx@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Justin T. Gibbs wrote: > Have you verified that there are no new BIOS versions available for your > motherboard? From what I can tell, when we write to registers over the > PCI bus, we are not getting the expected results. This may mean that > the PCI chipset has a non-standard caching feature enabled that violates > the PCI spec. I've seen this on some other VIA based boards. > > -- > Justin > > I am running the latest BIOS version available. However, your comment about PCI features helped to pinpoint the problem. Many reboots later it looks like the byte-merge function is the culprit. All other features can be turned on (including PCI bus master read caching, which I was suspicious of). Thanks for the help with this dilemma; it was sure mystifying when the rest of the world wasn't having the same problem with relatively common hardware! Larry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe aic7xxx" in the body of the message