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SubjectRe: HPT374 IDE problem with 2.6.21.* kernels

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:
>>>> 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For the record: this HTP374 is running with a quite outdated firmware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.


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