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    SubjectSATA DOM is not identified by ata_piix module
    Date
    Hi,

    I have a PQI Turbo SATA DOM. It works well under Windows. I installed it in
    a SuperMicro motherboard, Intel 5000P chipset. The OS is Ubuntu 7.04, kernel
    2.6.20-15. But the DOM is not appeared as a device node, and I found several
    error messages in kernel log.

    [   67.124299] ata2.00: qc timeout (cmd 0x91)
    [   67.124306] ata2.00: failed to IDENTIFY (INIT_DEV_PARAMS failed,
    err_mask=0x4)
    [   67.124309] ata2: failed to recover some devices, retrying in 5 secs
    [  102.258334] ata2.00: qc timeout (cmd 0x91)
    [  102.258341] ata2.00: failed to IDENTIFY (INIT_DEV_PARAMS failed,
    err_mask=0x4)
    [  102.258344] ata2: failed to recover some devices, retrying in 5 secs
    [  137.392654] ata2.00: qc timeout (cmd 0x91)
    [  137.392661] ata2.00: failed to IDENTIFY (INIT_DEV_PARAMS failed,
    err_mask=0x4)

    Actually I also have a PQI IDE DOM, it have same error with Ubuntu 7.04 /
    kernel 2.6.20-15. After I upgrade kernel to 2.6.22, the IDE DOM can work.
    But as for SATA DOM, I have no luck this time. Even with the newest kernel,
    2.6.23.14 and 2.6.24-rc7-git6, the problem still exists.
    I also found an interesting matter. The Ubuntu 6.10, say kernel 2.6.15-28,
    can identify both IDE DOM and SATA DOM. But due to other critical problem, I
    can not go back to this old kernel.

    What’s going on? The new kernel is even worse than old one. It seems the
    problem is existing in the ata_piix driver.

    Best regards,
    Mao Rui



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