Re: ioremap()/PCI sickness in 2.4.18-rc2 (FIXED ALMOST)

From: Jeff V. Merkey (jmerkey@vger.timpanogas.org)
Date: Wed Feb 20 2002 - 17:53:14 EST


On Wed, Feb 20, 2002 at 03:20:11PM -0700, Jeff V. Merkey wrote:
> On Wed, Feb 20, 2002 at 04:51:00PM -0500, Jeff Garzik wrote:
> > "Jeff V. Merkey" wrote:
> > > regions of memory. I would propose that the maintainer of
> > > vmalloc.c look at using 48 bit PTE entries or some other solution
> > > as a way to alloc larger virtual address frames when the system has
> > > a lot of physical memory. It's seems pretty lame to me for a machine
> > > with 2 GB of physical memory not to have at lest 256 MB of address space
> > > left over for address mapping.
> >
> > Instead of constantly trying to map >32-bit addresses onto 32-bit
> > processors, why not just get a 64-bit processor?
> >
> > One constantly runs into limitations with highmem...
> >
> > Jeff
>
> Sigh .... I am only using 2 GB on a 4GB capable processor (actually
> a 64 GB capable processor). Looks like a patch is needed. Who is
> maintaining vmalloc.c at present so I know who to submit a patch
> to?
>
> Jeff

Jeff,

Is it a waste of time to attempt to fix this?

Jeff

>
>
> >
> >
> >
> > --
> > Jeff Garzik | "Why is it that attractive girls like you
> > Building 1024 | always seem to have a boyfriend?"
> > MandrakeSoft | "Because I'm a nympho that owns a brewery?"
> > | - BBC TV show "Coupling"
> > -
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