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    For the record: this HTP374 is running with a quite outdated firmware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