2001-12-19 16:18:11

by wikne

Subject: 2.4.16 rivafb memory recognition problem

Hi,

I discovered a strange behaviour related to kernel memory recognition
when using the rivafb frame buffer option compiled into kernel 2.4.16.
The system in question has a Asus AGP7700 nVidia GeForce 2 GTS (32MB)
video card. It is a dual PIII SMP system, if that might matter.

When I select nVidia Riva support, at first it seemed to work perfectly.
But then I discovered that the kernel only recognizes 32MB of total
memory during boot! Excessive swapping is the result.

When instead I compile the kernel with VESA frame buffer support,
all other kernel config parameters the same, the resulting kernel
recognizes all of the 1GB physical memory actually installed in
this box.

Any ideas?


Cheers,
-- Jon Wikne

2001-12-19 19:30:51

by Jeff Garzik

Subject: Re: 2.4.16 rivafb memory recognition problem

Jon Wikne wrote:
>
> Hi,
>
> I discovered a strange behaviour related to kernel memory recognition
> when using the rivafb frame buffer option compiled into kernel 2.4.16.
> The system in question has a Asus AGP7700 nVidia GeForce 2 GTS (32MB)
> video card. It is a dual PIII SMP system, if that might matter.
>
> When I select nVidia Riva support, at first it seemed to work perfectly.
> But then I discovered that the kernel only recognizes 32MB of total
> memory during boot! Excessive swapping is the result.
>
> When instead I compile the kernel with VESA frame buffer support,
> all other kernel config parameters the same, the resulting kernel
> recognizes all of the 1GB physical memory actually installed in
> this box.

That code is based on the XFree86 code, maybe you can copy info from
XFree86's current driver...

--
Jeff Garzik | Only so many songs can be sung
Building 1024 | with two lips, two lungs, and one tongue.
MandrakeSoft | - nomeansno