Re: 2.4.21-pre3 kernel crash

[Alan Cox]

> On Mon, 2003-01-27 at 17:53, Ross Biro wrote:
> > This looks like the same problem I ran into with IDE and highmem not 
> > getting along.  Try compiling your kernel with out highmem enabled and 
> > see what happenes.
> 
> Indeed, looking at the code, it seems ide_build_sglist() doesn't worry
> much about highmem, just picks bh->b_data, assume it's a virtual
> address, and gives that to pci_map_sg(). I beleive, at least for highmem
> pages, it should rather pick bh->b_page and bh_offset(bh)
> 
> I can hack something, maybe tonight, but I can't test HIGHMEM for a while
> here. Interestingly, I had no problem report on PPC from users using IDE
> with highmem though.

I don't see how 2.4 IDE would be getting highmem pages. 2.5 IDE does handle
this and does need to