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    Subjecthang booting onboard HPT 366 with libata (PATA)
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    Hi all,

    With the release of libata PATA support in 2.6.19, I am trying out
    libata with my HPT366 (built-on to motherboard), and it hangs at
    bootup while scanning for partitions. Additionally, it complains of
    abnormal status? Related information about my setup below:

    - Abit BP6 motherboard running BIOS RV with HPT 1.28 (ie has
    functional ACPI DSDT table), has been recapped, not overclocked
    - onboard HPT366 controller functions fine with the old IDE drivers
    (but only so long as I use UDMA mode <=3, mode 4 has reported
    problems on BP6)
    - hard drive is an 80GB seagate 7200.1-ish that supports UDMA mode 5,
    partition scheme is (1-xfs, 2-swap)
    - this hard drive is the only drive connected, but the kernel
    discovers one empty pata_piix controller and one empty pata_hpt366
    controller before it.

    Related boot messages:

    ---

    ACPI: PCI Interrup 0000:00:13.1[B] -> GSI 18 (level, low) -> IRQ 16
    ata5: PATA max UDMA/66 cmd 0xE400 ctl 0xE802 bmdma 0xEC00 irq 16
    ata6: PATA max UDMA/66 cmd 0x0 ctl 0x2 bmdma 0xEC08 irq 16
    scsi4 : pata_hpt366
    ata5.00: ATA-6, max UDMA/100, 156301488 sectors: LBA48
    ata5.00: ata5: dev 0 multi count 16
    ata5.00 configured for UDMA/33
    scsi5 : pata_hpt366
    ATA: abnormal status 0x1C on port 0x7
    scsi 4:0:0:0: Direct-Access ATA ST380011A 3.06 PQ: 0
    ANSI: 5
    SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB)
    sda: Write Protect is off
    SCSI device sda: drive cache: write back
    SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB)
    sda: Write Protect is off
    SCSI device sda: drive cache: write back
    sda:_

    ---

    If there is anything I can test to help fix this issue or further
    diagnose it, please let me know.

    - Ricardo
    -
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