[parisc-linux] HP9000/730 problems

[parisc-linux] HP9000/730 problems

[M. Grabert]

Hello there,

i'm still trying running linux on hppa :-/

well, i tried both booting from scsi hd AND nfsroot/bootp

everytime it says (endless loop):


VFS: Mounted root (nfs filesystem) readonly

handle_interruption() pid=1 command='init'


PSW: 0000000000 [snip stack output]


(the same for booting from scsi hd)

Mhhh.

BTW, ASP Parallel Port driver is still broken (can't boot with it,
but can boot without it).

STI console is also broken (many characters are not printed or substitued
by spaces). The problems occur of course AFTER "switching console" !

But serial console works fine :)


Configuration: latest CVS kernel from 20010204 (about 17:00 UTC);
xc somewhere from november, the same for nfsroot.

I hope somebody can help!
Thanks In Advance,
  greetings (somewhat frustrated) max

Re: [parisc-linux] HP9000/730 problems

[penfold]

> 
> Hello there,
> 
> i'm still trying running linux on hppa :-/
> 
> VFS: Mounted root (nfs filesystem) readonly
> 
> handle_interruption() pid=1 command='init'
>
you need to edit /usr/src/linux/arch/parisc/kernel/traps.c
around line 574 you will see case 15 and case 26 - add case 18.

        case 15:
        case 18:
        case 26:
 
> 
> BTW, ASP Parallel Port driver is still broken (can't boot with it,
> but can boot without it).
> 
yup!

Damian
penfold@customware.com.au

Re: [parisc-linux] HP9000/730 problems

[Christoph Plattner]

Hello,

	again and again, I hope this problem will be fixed !
The reason is an older generation of the PA-RISC CPUs using
interuption (TRAP) `18', on newer CPUs this trap is defined via
new different traps, as trap 18 can have up to three reasons.

A profi hacker on HPPA, it was 
       John Marvin <jsm@udlkern.fc.hp.com>
told me to add the `case 18:' to the block with `case 15:' and
`case 26:' in arch/parisc/kernel/trap.c (I hope this is right !)
in the routine handle_interruption().

After this change, the machine boots up well !!

I hope, this fix will done also in the mainstream !!

With friendly regards
	Christoph Plattner


"M. Grabert" wrote:
> 
> Hello there,
> 
> i'm still trying running linux on hppa :-/
> 
> well, i tried both booting from scsi hd AND nfsroot/bootp
> 
> everytime it says (endless loop):
> 
> VFS: Mounted root (nfs filesystem) readonly
> 
> handle_interruption() pid=1 command='init'
> 
> PSW: 0000000000 [snip stack output]
> 
> (the same for booting from scsi hd)
> 
> Mhhh.
> 
> BTW, ASP Parallel Port driver is still broken (can't boot with it,
> but can boot without it).
> 
> STI console is also broken (many characters are not printed or substitued
> by spaces). The problems occur of course AFTER "switching console" !
> 
> But serial console works fine :)
> 
> Configuration: latest CVS kernel from 20010204 (about 17:00 UTC);
> xc somewhere from november, the same for nfsroot.
> 
> I hope somebody can help!
> Thanks In Advance,
>   greetings (somewhat frustrated) max
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955

Re: [parisc-linux] HP9000/730 problems

[Helge Deller]

On Monday 05 February 2001 00:29, M. Grabert wrote:
> BTW, ASP Parallel Port driver is still broken (can't boot with it,
> but can boot without it).

Yes, I thought I fixed it a few weeks back, but .... :-(
I would like to fix that problem, but since I don't have such a machine where 
this bug happens I will need your help. If you could send me your bootlog I 
can give it another try.

> STI console is also broken (many characters are not printed or substitued
> by spaces). The problems occur of course AFTER "switching console" !

I believe, that you used the old STI code. Please try again the code I 
checked into CVS yesteray.
But the main problem why you just see some characters is, that the HP STI rom 
code doesn't includes all characters - and the new code will not fix this 
yet. But my long term goal is to switch the STI code to use the 
framebuffer-fonts from the linux-tree (which really seems possible).

> But serial console works fine :)
Yes of course. It doesn't uses the font tables of STI ROM.

Greetings,

	Helge Deller