Re: HPT374 IDE problem with 2.6.21.* kernels

[Geller Sandor <wildy@petra.hos.u-szeged.hu>]

Hello,

On Sun, 3 Jun 2007, Bartlomiej Zolnierkiewicz wrote:

> Hi,
>
> On Saturday 02 June 2007, Geller Sandor wrote:
> > On Sat, 2 Jun 2007, Sergei Shtylyov wrote:
> >
> > > > The log of a typical IDE reset is available here:
> > >
> > > > http://petra.hos.u-szeged.hu/~wildy/syslog.gz
> > >
> > > > This was the worst case: the IDE bus was resetted during the system boot.
> > >
> > >   Could you try setting HPT374_ALLOW_ATA133_6 to 0 in
> > > drivers/ide/pci/hpt366.c and rebuild/reboot the kernel?
> >
> >
> > Hi Sergei,
> >
> > This looks promising. Using a vanilla 2.6.22-rc3 I was able to reproduce
> > the problem within a few seconds. With the above modification the machine
> > is running under heavy disk I/O without problems since 30 minutes...
>
> Did it fix the problem for good?

It seems so far. There hasn't been any problem since I've applied the fix.

> Sergei, do we need to disallow UDMA6 completely on HPT734 or
> is it only an issue with some problematic devices (=> blacklist)?
>
> Either way we need to fix it somehow for 2.6.22.

For the record: this HTP374 is running with a quite outdated firmware 
(1.22) - maybe newer firmwares work correctly. I'm going to upgrade the 
firmware to the latest one (which was released in 2004...), but 
unfortunately in the upcoming 2-3 weeks I won't have access to this 
machine, so I can't check the case within the release cycle of 2.6.22. If 
you were interested I would post the result of the firmware upgrade.

Regards,

  Sandor
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