[plug] Laptop freezes under 2.4 kernel bootup

[Craig Ringer]

> Uniform Multi-Platform E-IDE driver Revision: 6.31
> ide: Assuming 33MHz system bus speed for PIO modes;
> override with idebus=xx
> PIIX4: IDE controller on PCI bus 00 dev f9
> PIIX4: chipset revision 5
> PIIX4: not 100% native mode: will probe irqs later
>     ide0: BM-DMA at 0x1440-0x1447, BIOS settings:
> hda:DMA, hdb:pio
>     ide1: BM-DMA at 0x1448-0x144f, BIOS settings:
> hdc:DMA, hdd:pio

[snip]

> Presumably there's something about either the disk or
> the controller that it's not liking. I've seen it
> booted in Knoppix (which I presume has 2.4) but I
> didn't see the bootup messages so I can't tell you
> anything in that regard.

Quite likely it doesn't like DMA. Try booting with ( I think ) " 
ide0=nodma ide1=nodma " ... but it might be hda=nodma etc . It is using 
DMA for hda and hdc, and the controller might not like that.

Craig Ringer