Problem with via82cxxx and vt8235

Problem with via82cxxx and vt8235

[Patrick Petermair]

Hi!

I have a MSI KT3Ultra2 Motherboard with a VT8235 southbridge. I'm currently 
running kernel 2.4.19 - unfortunately it doesn't detect the southbridge, 
so I cannot enable dma.
I tried the patch from Vojtech Pavlik (via82cxxx), but then it hangs at 
boot:

hdc: status timeout: status=0xd0 { Busy }
hdc: status timeout: error=0x00
hdc: drive not ready for command
hdc: ATAPI reset timed-out, status=0x80
hdd: DMA disabled
ide1: reset: success
hdc: status timeout: status=0x80 { Busy }
hdc: status timeout: error=0x01IllegalLengthIndication
hdc: drive not ready for command
hdc: ATAPI reset timed-out, status=0x80
ide1: reset: success
hdc: status timeout: status=0x80 { Busy }
hdc: status timeout: error=0x01IllegalLengthIndication
end_request: I/O error, dev hdc, sector 0
hdc: drive not ready for command

I tried the last 2.5.x kernels and today the 2.4.20, everytime the same 
problem. 2.4.19 boots just fine, but without dma :-(

Btw: hdc ist my dvd drive:
starbase:/# cat proc/ide/hdc/model
TOSHIBA DVD-ROM SD-M1302
starbase:/#

Any hints? It's a real pain to work without dma....

Thanks,
Patrick

Re: Problem with via82cxxx and vt8235

[Alan Cox]

On Sat, 2002-11-30 at 00:29, Patrick Petermair wrote:
> Hi!
> 
> I have a MSI KT3Ultra2 Motherboard with a VT8235 southbridge. I'm currently 
> running kernel 2.4.19 - unfortunately it doesn't detect the southbridge, 
> so I cannot enable dma.
> I tried the patch from Vojtech Pavlik (via82cxxx), but then it hangs at 
> boot:
> 

Try the -ac tree firstly

Re: Problem with via82cxxx and vt8235

[Patrick Petermair]

Alan Cox:
> On Sat, 2002-11-30 at 00:29, Patrick Petermair wrote:
> > Hi!
> >
> > I have a MSI KT3Ultra2 Motherboard with a VT8235 southbridge. I'm
> > currently running kernel 2.4.19 - unfortunately it doesn't detect the
> > southbridge, so I cannot enable dma.
> > I tried the patch from Vojtech Pavlik (via82cxxx), but then it hangs
> > at boot:
>
> Try the -ac tree firstly

Thanks Alan, now dma works perfect!
How come this code isn't in the official 2.4.20 kernel?

The only strange thing now is that uname doesn't know my cpu:

starbase:/# uname -a
Linux starbase 2.4.20-ac1 #1 Sam Nov 30 18:43:15 CET 2002 i686 unknown 
unknown GNU/Linux
starbase:/#

But it gets recognized during boot:

starbase:/# dmesg | grep -i AMD
CPU: AMD Athlon(tm) XP 2200+ stepping 00
starbase:/#

starbase:/# cat /proc/cpuinfo | grep -i AMD
vendor_id       : AuthenticAMD
model name      : AMD Athlon(tm) XP 2200+
starbase:/#


But hey, I can live with that - I have dma now :-)
Just curious, what's causing this.

Thanks so much...
Patrick

Re: Problem with via82cxxx and vt8235

[Sean Neakums]

commence  Patrick Petermair quotation:

> Alan Cox:
>>
>> Try the -ac tree firstly
>
> Thanks Alan, now dma works perfect!
> How come this code isn't in the official 2.4.20 kernel?
>
> The only strange thing now is that uname doesn't know my cpu:
>
> starbase:/# uname -a
> Linux starbase 2.4.20-ac1 #1 Sam Nov 30 18:43:15 CET 2002 i686 unknown unknown GNU/Linux

Are you running Debian unstable, and did you recently dist-upgrade?
The changes to coreutils that display CPU information in place of
"unknown unknown" were reverted in coreutils 4.5.3-1.

-- 
 /                          |
[|] Sean Neakums            |  Questions are a burden to others;
[|] <sneakums@zork.net>     |      answers a prison for oneself.
 \                          |

Re: Problem with via82cxxx and vt8235

[Patrick Petermair]

Sean Neakums:

> Are you running Debian unstable, and did you recently dist-upgrade?
> The changes to coreutils that display CPU information in place of
> "unknown unknown" were reverted in coreutils 4.5.3-1.

Yup, Debian unstable...and yup, did a upgrade last night.

Thanks.
Patrick

Re: Problem with via82cxxx and vt8235

[Alan Cox]

On Sat, 2002-11-30 at 21:27, Patrick Petermair wrote:
> > Try the -ac tree firstly
> 
> Thanks Alan, now dma works perfect!
> How come this code isn't in the official 2.4.20 kernel?

Because its still getting a final polish - with luck it will be in
2.4.21

PDC20268 in current -ac [Re: Problem with via82cxxx and vt8235]

[Tomas Szepe]

> > > Try the -ac tree firstly
> > 
> > Thanks Alan, now dma works perfect!
> > How come this code isn't in the official 2.4.20 kernel?
> 
> Because its still getting a final polish - with luck it will be in
> 2.4.21

I'm still having problems with dma on the secondary channel of my
PDC20268.  Channel 1 is ok.

# hdparm -Iv /dev/hdg| grep '*u'
        DMA: mdma0 mdma1 mdma2 udma0 udma1 *udma2 udma3 udma4

# hdparm -X68 /dev/hdg

/dev/hdg:
 setting xfermode to 68 (UltraDMA mode4)

(no errors logged)

# hdparm -Iv /dev/hdg| grep '*u'
        DMA: mdma0 mdma1 mdma2 udma0 udma1 *udma2 udma3 udma4

There's no such problem w/ 2.4.20 vanilla.

-- 
Tomas Szepe <szepe@pinerecords.com>