Re: struct page to 36 (or 64) bit bus address?

[Alan Cox]

> There have been a few threads on this issue.  One of the core reasons
> the situation is unlikely to change in 2.4.x is that the scsi layer in
> it's current form makes the logic required for recovering from a DMA
> mapping failure aweful at best.

Actually its pretty trivial to resolve that I think. We already follow
precisely the right procedure for some other scsi events. So 

	scsi_retry_command(SCpnt);

would map to setting the error and returning.