Date: Mon, 09 Dec 2002 11:55:43 +0200 From: Vadim Belman <voland@lflat.org> To: Bruce Cran <bruce@cran.org.uk> Cc: current@freebsd.org Subject: Re: ATACD issues slowly coming back... Message-ID: <3DF4689F.5040702@lflat.org> In-Reply-To: <200212061435.45583.cbiffle@safety.net> References: <200212061435.45583.cbiffle@safety.net> <20021208222838.GA3422@fourtytwo.gamesoc> <200212081943.48765.cbiffle@safety.net> <20021209094638.GA4938@fourtytwo.gamesoc>
next in thread | previous in thread | raw e-mail | index | archive | help
Bruce Cran wrote: > Your CD drive should indeed support UDMA33 - my DVD drive supports > UDMA33, and my CDRW supports multi-word DMA, even though my BIOS only > ever configures it for PIO4, and my DVD for UDMA33. FreeBSD only ever > configures them for PIO during bootup, but, using the atacontrol > program, it configures them both for maximum speed, even knowing they > _can_ only do UDMA33,WDMA2. If you have a look at sysctl hw.ata tree, it'll give you the clue on how to overcome this behaviuor. In simple words, what you need is to poot hw.ata.atapi_dma=1 in your /boot/loader.conf and have the nirvana of automatic DMA detection... -- /Voland Vadim Belman http://www.lflat.org http://www.lflat.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3DF4689F.5040702>