Subject: Re: Hard Drive Read Problems
To: Ian McIntosh <>
From: Manuel Bouyer <>
List: tech-kern
Date: 01/09/2003 23:49:13
On Fri, Jan 03, 2003 at 10:16:38AM +0200, Ian McIntosh wrote:
> Thank you for the assistance.
> The dmesg output says:
> pciide0: bus-master DMA support present, but unused
> (no driver support)
> The result of the transfer test was quite worrying too:
> The old PC (Celeron Intel 815) with 14913080 bytes/sec
> while the new PC (P4 Celeron Intel 845) with 2631720 bytes/sec
> >From this I gather that my options are either to upgrade to 1.6 or
> to try and patch the 1.5.1 drivers. Is this correct? Are there any other
> possible soltuons to the problem?

You can try to use 
pciide* at pci? dev ? function ? flags 0x0001
in your kernel config file, hoping the BIOS has setup the controller properly.

Manuel Bouyer <>
     NetBSD: 23 ans d'experience feront toujours la difference