Re: 2.3.43 alpha broken with >2g of ram

[Richard Henderson]

On Sat, Feb 12, 2000 at 10:43:02AM -0800, Linus Torvalds wrote:
> I would suggest keeping the 2G limit, and just allowing a kernel command
> line to override it.

Not unreasonable.

> Alternatively, use the same "highmem" support for it that x86 uses for
> >4GB pages: anybody using the normal memory allocators would use mem < 2G,
> while the high-mem logic comes into play with any allocations in the 2G+
> range.

I'm not sure how highmem would work with the pci dma mapping 
functions.  Cause I wouldn't want bounce buffers to be used with
any driver that had been converted.

r~