On Thu, Aug 28, 2003 at 04:47:56PM +0200, Soren Schmidt wrote: > It seems Anish Mistry wrote: > > > > > it DMA was fixed for my CD/DVD combo drive. I changed the > > > > > hw.ata.atapi_dma="0" > > > > > to hw.ata.atapi_dma="1" in my /boot/loader.conf. After a reboot I tried > > > There is no PIO fallback in ATAng (so far), if you know that your ATAPI > > > device doesn't do DMA why on earth do you enable it ? > > > > > Because the drive does support DMA. I've tested to see it DMA actually works > > in windows, PIO vs DMA while playing a DVD, and there is a big difference, > > and I can only assume that it works. > > Hmm, I didn't hear the "works in windows" bit :) > > Could you mail me a dmesg from the system, that might uncover some usefull > info on if/how/why DMA can work on your HW.. For the kernel before ATAng: see dmesg.beforeATAng For a small list of DMA according to Windows XP see dmesg.windows I'm still looking how I can get it to boot with a kernel after ATAng. It fails with "ad0: WARNING: READ_DMA ICRC warning" or something like that. Mark -- Nice testing in little China...
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