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    SubjectRe: pcmcia oops on 2.6.17-rc[12]
    On Mon, May 15, 2006 at 11:07:08PM +0100, Alan Cox wrote:
    > On Llu, 2006-05-08 at 17:34 +0100, Russell King wrote:
    > > > So 8250 is requesting an IRQ for non-sharing mode and it's actually
    > > > failing, because something else is already using that IRQ. The difference
    > > > is that the kernel now generates a warning when this happens.
    > >
    > > Maybe someone is clearing the UPF_SHARE_IRQ flag? Which port is this?
    > Its a bug in the PCMCIA code. Its the one I hit with the IDE code.
    > Asking for a private IRQ is not always honoured.

    Not in this case - the call trace is definitely a result of setserial
    being used. serial_cs _always_ registers ports with 8250 with the
    share IRQ flag set.

    Russell King
    Linux kernel 2.6 ARM Linux -
    maintainer of: 2.6 Serial core
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