On Tue, Jul 17, 2001 at 05:12:37PM +0900, Henry Nelson wrote:
> dmesg shows:
> pciide0 at pci0 dev20 function0: OPTi 82c621 PCI IDE controller (rev. 0x11)
> pciide0: bus-master DMA support present, but unused (couldn't map registers)
> 
> This is NetBSD 1.5.1 on an IBM PC750 Type 6883-JOP.  Is there some setting
> when building a custom kernel that would resolve this problem, or is this
> some hardware issue?  TIA

The BIOS didn't set up the I/O register properly.
Check for options in the bios that could enable DMA for IDE disks (or
maybe just a "PnP OS" option)

--
Manuel Bouyer <bouyer@antioche.eu.org>
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