Re: [ECOS] Standalone ethernet application

[Jonathan Larmour <jifl at eCosCentric dot com>]

Hans Kester wrote:
> Dear group,
>
> I am trying to boot a standalone program from floppy on an ordinary PC.
> RedBoot works fine, a simple 'hello' example also works fine but when I
> include networking I get a bunch of errors. Any idea what is wrong?
[snip]
> Bad link eth0 0xffffffff 0x000843ec 0 0x00004930: InitRxRing:1848
[snip]

Haven't really looked, but this happens when the ring of rx buffers in the 
PCI window is corrupt. It's possible a BIOS setting could do this, or a 
card problem. But my suspicion is that your standalone program may be using 
more than 640K of RAM, leaving insufficient room for the PCI window. This 
is because the "FLOPPY" startup type is, by itself, only really intended 
for redboot. You should probably tweak the memory layout in 
hal/i386/pc/current/include/pkgconf/mlt_i386_pc_floppy* to take advantage 
of memory above 0x100000. RAM startup apps automatically load and run above 
0x100000 which is why those don't normally have a problem.

Jifl
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