Re: [hatari-devel] Linux bootup issues in Hatari

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

Hi,

On 3/17/19 9:04 AM, Thorsten Otto wrote:
> > BTW have to think about what checks regarding TT-RAM should be implemented
>
> Ok i just tried. Guess you can't get it perfect. Currently,
>
> bool load_to_fastram = bx_options.lilo.load_to_fastram && FastRAMSize > 0;
>
> already ensures that the kernel is only loaded in FastRAM when it is
> configured (load_to_fastram only applies to kernel, not to ramdisk).

I was thinking of adding separate fastram flags for kernel & initrd
to Hatari lilo code, because I think having kernel in ST-RAM and
initrd in fastram is config one might want to try.


> But even
> if i add some checks e.g whether the kernel size does not exceed the Fast-
> Ramsize, there are situations where both will fit in memory, but leaving only
> less than 1MB of free memory. In that case, i don't get a segfault, but the
> kernel panics rather early. The missing checks might be the reason that you
> got a segfault, if your kernel is larger than mine.
>
> But i think this is only a matter for debugging purposes. In practise, there
> is no reason to not configure a decent amount of TT-RAM.

Real HW doesn't necessarily have decent amount of TT-RAM.

Use-case is making a stripped down Linux kernel + user-space that
can actually run on real HW.  That should be faster to do & debug
in emulator than on real HW, once everything works in emulator. :-)


> Anyway, pushed a few extra checks.

I don't see them in https://github.com/aranym/aranym.git?


	- Eero