From owner-freebsd-current Wed May 27 20:07:36 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id UAA13527 for freebsd-current-outgoing; Wed, 27 May 1998 20:07:36 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from freebie.lemis.com (freebie.lemis.com [139.130.136.133]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id UAA13487 for ; Wed, 27 May 1998 20:07:21 -0700 (PDT) (envelope-from grog@lemis.com) Received: (from grog@localhost) by freebie.lemis.com (8.8.8/8.8.7) id MAA10845; Thu, 28 May 1998 12:37:12 +0930 (CST) (envelope-from grog) Message-ID: <19980528123712.H4179@freebie.lemis.com> Date: Thu, 28 May 1998 12:37:12 +0930 From: Greg Lehey To: Karl Pielorz , current@FreeBSD.ORG Subject: Re: aha1542 - again... References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.91.1i In-Reply-To: ; from Karl Pielorz on Thu, May 28, 1998 at 12:07:15AM +0100 WWW-Home-Page: http://www.lemis.com/~grog Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-41-739-7062 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, 28 May 1998 at 0:07:15 +0100, Karl Pielorz wrote: > > Hi, > > I read a while ago there were problems with the existing AHA1542 support > on -current... I also read that someone (I can't remember now who it was) > said they'd been through the code and fixed up a few things... > > As I remember it was a problem to do with bounce buffers... > > I've just had to add a 1542CF to my machine (as I'm out PCI slots and it > was 'hanging around'), and I've run into problems with it - but I'm not > sure there to do with bounce buffers etc. > > I know CAM is looking almost 'immanent' - but can anyone confirm whether > the 1542 driver is in any useable state in -current at the moment? I'm developing vinum on a -CURRENT machine with a 1542B. I had trouble with a 1542A, which appears to be a known problem (a number 0f 0xff bytes strewn at regular intervals, usually 32K), but the 1542B is working fine. > I have 2 x Double-Speed CD-ROM drives hooked up to it, I wouldn't have > thought they were particularly 'stressy' for the driver ;-) Do you have problems? You'll need bounce buffers for any ISA DMA device if you have more than 16 MB memory. Greg -- See complete headers for address and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message