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    SubjectRe: 2.6.23-rc9-git4: pata_pcmcia, disabling IRQ #9 and Re: libata and legacy ide pcmcia failure
    Alan Cox wrote:
    > On Fri, 21 Mar 2008 10:38:31 +0900
    > Tejun Heo <htejun@gmail.com> wrote:
    >
    >
    >> Alan Cox wrote:
    >>
    >>> O> Mar 20 19:51:45 idefix kernel: ata12: PATA max PIO0 cmd 0xa100 ctl
    >>>
    >>>> 0xa10e irq 3
    >>>> Mar 20 19:52:15 idefix kernel: ata12.00: qc timeout (cmd 0x91)
    >>>> Mar 20 19:52:15 idefix kernel: ata12.00: failed to IDENTIFY
    >>>> (INIT_DEV_PARAMS failed, err_mask=0x4)
    >>>>
    >>> Thinkpad T61p .. I've seen a few of these.
    >>>
    >>> Firstly try the card and adapter in a different PC and let me know if
    >>> that works. So far they do. If that is the case get the latest firmware
    >>> updates (BIOS etc) for your thinkpad and see if the problem goes away.
    >>> They (or our ACPI code I guess it may be) have some serious IRQ routing
    >>> problems on this box.
    >>>
    >> Any chance the thing just chokes up on INIT_DEV_PARAMS?
    >>
    >
    > Possibly but I've seen several previosu reports showing no IRQ being
    > delivered off these machines. You get IRQ 3 reported as assigned and an
    > IRQ 9 turns up.
    >
    > Alan
    >
    >
    How can I check to see if this is the case? How would this explain that
    the adapter and card sometimes work when they are in when the system boots?

    peter



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