Date: Wed, 8 Dec 1999 17:46:42 +0100 (CET) From: Soren Schmidt <sos@freebsd.dk> To: rock@dead-end.net (D. Rock) Cc: ambrisko@whistle.com (Doug Ambrisko), current@FreeBSD.ORG Subject: Re: ATA driver as the default Message-ID: <199912081646.RAA62277@freebsd.dk> In-Reply-To: <384E8633.BD23E6CC@dead-end.net> from "D. Rock" at "Dec 8, 1999 05:24:19 pm"
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It seems D. Rock wrote: > I don't think I have the same problem. My drive definitely doesn't spin > down. It sometimes occurs during heavy usage, so the drive should still > be very alive. With PIO mode I also don't have any timeout problems. > I also had the same DMA problems with the old wd driver and under Windows. > The problem is, that the new driver doesn't allow to selectively turn > off DMA for problematic devices. > > I now had commented out the DMA activation code in ata-disk.c (DMA > is still activited on the CD-ROM drive though) and I will see how the > system behaves. I'm working on a way to select DMA or not on each device via a sysctl, that should fix your problem... -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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