On Tue, Dec 07, 2004 at 12:16:35AM -0700, Larry Hunter wrote: > On a Dell Precision 530, I am trying to install an 80GB Hitachi / IBM > disk (specifically, 07N9685 Deskstar 180 GXP 80GB EIDE, ATA-6, 7200 > RPM) working in DMA mode. The Dell uses an on-board Intel PIIX4 Ultra > 100 Chipset. The drive is drive 0 (master) on the primary channel of > the controller, and there are no other drives on that channel. There is > a CD-RW on the secondary channel. The drive and the controller are > capable of DMA. > > The device is recognized properly by the bios, and is available as > /dev/hda. However, it is not and cannot be put into DMA mode, making it > dramatically slower than it should be. The easiest way to see that is by > hdparm:
fwiw, I'm seeing exactly the same problem with an IBM thinkpad 600E. piix modules all load OK, but with 2.6.9 I can't put the HD into DMA mode. It worked fine with 2.6.8 Phil -- http://www.kantaka.co.uk/ .oOo. public key: http://www.kantaka.co.uk/gpg.txt
