2.2.* broken on IBM 850?

[Kazunori Aoshima]

Hi.

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# David, would you come to linuxppc-ws ML?
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# MBX embed systems, and so on.

Return for :
From: David Monro <davidm at amberdata.demon.co.uk> 
on " 2.2.* broken on IBM 850? "
date: Mon, 18 Oct 1999 20:31:51 +0100 >>>

> Hi,
> 
> has anybody got a 2.2 kernel working properly on an IBM 
> PowerSeries 850(codenamed Carolina I think)?
> 
> I can boot an old 2.0.32 kernel on it and it mostly seems to 
> work, although the interrupt assignments are a little odd - 
> NT on the same box claims that ide0 is on 16, ide1 is on 17 
> and my ncr825 card is on 15.
> Linux seems to think that ide0 is on 13, ide1 doesn't exist 
> (and that the IDE cdrom on it isn't there either) and that 
> the SCSI card is on irq 10. Is ARC playing games with me?

Interrupt settings on SCSI can change on kernel.
Would you rebuild your kernel for you?

> 2.2 kernels (and I've tried quite a few, namely install images 
> for yellow dog, debian and linuxppc, plus random other bits and 
> bobs) exhibit symptoms which to me look like the interrupts 
> aren't getting through. I get "hda IRQ probe failed (0)" several 
> times, the partition table read fails, and then the ncr53c8xx 
> driver gets a timeout on every command, which is exactly what 
> happens on x86 machines when the interrupt mappings get stuffed 
> and the driver isn't getting the interrupts.

Would you use the Gary's zImage-2.2.10-ide image?
That stays on ftp://ftp.linuxppc.org/user/gdt/ .

And you would like to stay Linux with NT?
That sounds difficult on 850.

You would boot up Linux from FDD (or CD-ROM) ?
When boot from FDD, boot up Linux, and automatic boot up NT 
without FDD. That maybe selects booting.

> The debian install image (bootprep.bin) behaved slightly
> differently - when I took the SCSI card out it managed to get
> the partition table from the hard drive while whinging about 
> it all the time (timeouts I think),
> and then as soon as it got to mounting the ramdisk the screen
> went black and stayed that way. Trying to get it to boot hda1
> in single user mode actually got as far as starting init, and
> I saw a shell prompt for a split second before the screen went
> black :-(

When boot up kernel, options for tty output makes signs out
for serial console. To stop this, delete before booting by 
backspace.

I didn't use debian/prep (I am waiting for the CD-ROM image.).
So I don't know about it, but if the installer of debian use 
some other screen format, like framebuffer? 

> The interrupt mappings seem to be the same under 2.2 as under 2.0.
> Oh, does anybody know if the ibmtr driver works with either
> 2.0 or 2.2? 
> This is my first attempt at messing with PPC, although I've had
> a fair bit of experience with x86 and alpha boxes under linux.
> 
> Cheers,
> 	David


Best regards.
----------------------
Kaz Aoshima = PReP station
Material deveropment, Faculty of engineering, 
Tohoku University, Japan
E-mail:aoshimak at mail.cc.tohoku.ac.jp
#I would appreciate if you could give me suggestions
 for my impolite English expressions.

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