Disable DMA.

Alexander Motin mav at FreeBSD.org
Sat Feb 11 20:34:38 UTC 2012


On 02/11/12 20:15, Peter Ankerstål wrote:
> In FreeBSD 8 i used the loader-variable hw.ata.ata_dma=0 to get my computer boot on a CF card. But
> in FreeBSD 9.0 it doesn't seem to work. Could it be another variable or is it something else that doesn't work
> in 9? The machine boots up the installer when the CF-card is not present but when it is present it stops right
> after the "Timecounter" stuff.

On 9.0 you can to it with
hint.ata.X.mode=PIO4
, where X is a bus number.

In recent 8/9-STABLE I've also resurrected hw.ata.ata_dma=0.

-- 
Alexander Motin


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