From owner-freebsd-bugs Tue Jul 20 13:44:47 1999 Delivered-To: freebsd-bugs@freebsd.org Received: from ggw.gbg.netman.se (x67.eom.crt.se [193.12.107.67]) by hub.freebsd.org (Postfix) with ESMTP id 3156315470; Tue, 20 Jul 1999 13:44:18 -0700 (PDT) (envelope-from peter@netman.se) Received: by ggw.gbg.netman.se; id WAA27870; Tue, 20 Jul 1999 22:43:35 +0200 (MET DST) Received: from unknown(10.15.1.5) by ggw.gbg.netman.se via smap (nmgbg) id xma027868; Tue, 20 Jul 99 22:43:29 +0200 Received: from localhost (peter@localhost) by spock.hq.gbg.netman.se (8.9.1a/8.9.3) with ESMTP id WAA24910; Tue, 20 Jul 1999 22:45:58 +0200 (CEST) X-Authentication-Warning: spock.hq.gbg.netman.se: peter owned process doing -bs Date: Tue, 20 Jul 1999 22:45:58 +0200 (CEST) From: Peter Hakanson X-Sender: peter@spock.hq.gbg.netman.se To: gnats-admin@FreeBSD.org, freebsd-bugs@FreeBSD.org Cc: peter@gbg.netman.se Subject: Re: kern/12450: IBM -DTTA-351010 corrupts data when using DMA 32-bit & multi-block i/o In-Reply-To: <199906291630.JAA04814@freefall.freebsd.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Dear "gnats", my problem is solved, it might be interesting for you to know the cause : The board i use (chaintech 5AGM2) has 2 possible "system frequencys" for Cyrix-MII, 66 X 3.5 and 75 X 3 When using 75mhz the ibm disk cannot use DMA, it will corrupt data. Quantum does work however. When switching to 66 X 3.5 both IBM and quantum works ok. For the record, i use FreeBSD 3.1-RELEASE the disk(s) involved are : QUANTUM FIREBALL SE3.2A QUANTUM FIREBALL CR4.3A IBM-DTTA-351010 On Tue, 29 Jun 1999 gnats-admin@FreeBSD.org wrote: > Thank you very much for your problem report. > It has the internal identification `kern/12450'. > The individual assigned to look at your > report is: freebsd-bugs. > > >Category: kern > >Responsible: freebsd-bugs > >Synopsis: IBM -DTTA-351010 corrupts data when using DMA 32-bit & multi-block i/o > >Arrival-Date: Tue Jun 29 09:30:00 PDT 1999 > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message