[Milkymist-devel] Linux Porting Issues

[Sébastien Bourdeauducq]

Hello,

On Monday 17 August 2009 09.10.17 you wrote:
>  > What patches are you using with your Linux kernel btw?
>
> I have ad-hoc patch module.

Thank you very much for this patch. It contains a few interesting things that 
we have not tried (as far as I know):
- #define PAGE_OFFSET 0x40000000 in include/asm-lm32/page.h
- modification of arch/lm32/kernel/vmlinux.lds.S
- modifications of arch/lm32/xenomai/hal.c
- modifications of init/main.c (do not initialize interrupt pipe when it's 
disabled)

Did you write this patch entirely by yourself? Is it part of a university 
project or something?

> Thank you for your advice.
> There are few problem.
> 1. System cal interrupt stack problem.(entry.s)
> 2. Serial driver is not working.

Can you elaborate?

I'm afraid I do not understand what you mean about the interrupt stack 
problem. And the serial driver is obviously working - how would you see the 
boot messages otherwise?

> [42949378.240000] RAMDISK: Loading 4096KiB [1 disk] into ram disk...
>
> |/-¥|/-¥|/-¥|/-¥|/-¥|/-¥|/-
>
> ¥|/-¥|/-¥|/-¥|/-¥|/-¥|/-
> ¥|/-¥|/-¥|/-¥|/-¥|/-¥|/-
> ¥|/-¥|/-¥|/-¥|/-¥|/-¥|/-
> ¥|/-¥|/-¥|/-¥|/-¥|/-¥|/-
> ¥|/-¥|/-¥|/-¥|/-¥|/-¥|/-
> ¥|/-¥|/-¥|/-¥|/-¥|/-¥|/-
> ¥|/-¥|/-¥|/-¥|/-¥|/-¥|/-
> ¥|/-¥|/-¥|/-¥|/-¥|/-¥|/-
> ¥|/-¥|/-¥|/-¥|/-¥|/-¥|/-
> ¥|/-¥|/-¥|/-¥done.
> [42949381.540000] VFS: Mounted root (ext2 filesystem).

Does the kernel really prints out that garbage (the strange non-ASCII 
characters)? This would be really bad...

Regards,
Sébastien

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