On 14 May 2002, Nathan J. Williams wrote:

> Today I finally tried to burn a CD on my shiny new PC.
> It didn't work so well; in fact, it hung the entire system.
>
> The pciide stuff probes as:
> [snip]
> cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA data transfers)

Try disabling DMA (both regular and Ultra-) for cd* in the kernel config
file:

cd*     at atapibus? drive ? flags 0x0ff0

Cheers, Steve