From owner-freebsd-bugs Sun Dec 3 21:14:29 2000 From owner-freebsd-bugs@FreeBSD.ORG Sun Dec 3 21:14:27 2000 Return-Path: Delivered-To: freebsd-bugs@freebsd.org Received: from sbtx.tmn.ru (sbtx.tmn.ru [212.76.160.49]) by hub.freebsd.org (Postfix) with ESMTP id BB84537B400 for ; Sun, 3 Dec 2000 21:14:24 -0800 (PST) Received: from sv.tech.sibitex.tmn.ru (sv.tech.sibitex.tmn.ru [212.76.160.59]) by sbtx.tmn.ru (8.8.8/8.8.8) with ESMTP id KAA01550; Mon, 4 Dec 2000 10:14:15 +0500 (ES) Received: (from serg@localhost) by sv.tech.sibitex.tmn.ru (8.11.1/8.11.1) id eB45EFn08864; Mon, 4 Dec 2000 10:14:15 +0500 (YEKT) (envelope-from serg) From: "Sergey N. Voronkov" Message-Id: <200012040514.eB45EFn08864@sv.tech.sibitex.tmn.ru> Subject: Re: kern/23011: UDMA 66 not working on 4.1.1-Release ? In-Reply-To: <200012040050.eB40o2101991@freefall.freebsd.org> "from Mark Redding at Dec 3, 2000 04:50:02 pm" To: Mark Redding Date: Mon, 4 Dec 2000 10:14:15 +0500 (YEKT) Cc: freebsd-bugs@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL82 (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII Sender: serg@sbtx.tmn.ru Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > I'm experiencing the same problem in getting UDMA66 out of FreeBSD. > > dmesg snippet follows: > ... > atapci0: port 0xd000-0xd00f at device 7.1 on > pci0 > ata0: at 0x1f0 irq 14 on atapci0 > ata1: at 0x170 irq 15 on atapci0 > ... > ad0: 9773MB [19857/16/63] at ata0-master UDMA66 > ad1: 4110MB [14848/9/63] at ata0-slave UDMA33 Do you realy think UDMA66 & UDMA33 drives on some IDE cable is good? Try to use this drives separately (UDMA66 drives on leased chenel with special cable). In your current configuration it looks to be impossible without use of a second controller. > I believe I've got round the problem by editing ata-dma.c and commenting out > the code that sets udmamode back to 2 (which the above dmesg shows). > > Anyone knowing a good I/O benchmark to confirm this please let me know. Serg N. Voronkov. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message