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    SubjectRe: 2.6.19-git3 panics on boot - ata_piix/PCI related
    On 12/3/06, Alessandro Suardi <> wrote:
    > FC6-latest running on a Latitude D610, SATA hard disk;
    > 2.6.19 is okay, kernel built with oldconfig from the
    > known-working setup fails to boot not recognizing the
    > root partition, which is due to ata_piix not loading due
    > to a PCI I/O reserve error.
    > Happens both with and without CONFIG_SYSFS_DEPRECATED
    > (I first had it to N then thought it might have had something
    > to do with the boot error so I rebuilt with Y - no change).
    > Messages hand-copied from the screen on the 2nd try:
    > Loading ata_piix.ko module
    > ata_piix 0000:00:1f.2: MAP [ P0 P2 IDE IDE ]
    > ACPI: PCI Interrupt 0000:00:1f.2[B] -> Link [LNKB] -> GSI 5 (level, low) -> IRQ5
    > PCI: Unable to reserve I/O region #1:8@1f0 for device 0000:00:1f.2
    > ata_piix: probe of 0000:00:1f.2 failed with error -16
    > [snip]
    > mount: could not find filesystem '/dev/root'

    Same failure is also in 2.6.19-git4...

    I'll download -git1 and -git2 to see which one broke my setup first.

    > This is what is in the dmesg ring of 2.6.19:
    > ata_piix 0000:00:1f.2: version 2.00ac6
    > ata_piix 0000:00:1f.2: MAP [ P0 P2 IDE IDE ]
    > ACPI: PCI Interrupt 0000:00:1f.2[B] -> Link [LNKB] -> GSI 5 (level,
    > low) -> IRQ 5
    > PCI: Setting latency timer of device 0000:00:1f.2 to 64
    > ata1: SATA max UDMA/133 cmd 0x1F0 ctl 0x3F6 bmdma 0xBFA0 irq 14
    > ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0xBFA8 irq 15
    > scsi0 : ata_piix
    > ata1.00: ATA-6, max UDMA/100, 117210240 sectors: LBA
    > ata1.00: ata1: dev 0 multi count 8
    > ata1.00: applying bridge limits
    > ata1.00: configured for UDMA/100
    > scsi1 : ata_piix
    > ata2.00: ATAPI, max UDMA/33
    > ata2.00: configured for UDMA/33


    "...when I get it, I _get_ it"

    (Lara Eidemiller)
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