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    SubjectRe: [GIT PATCH] more Driver core patches for 2.6.19
    On Wed, 2006-12-13 at 23:56 +0000, Alan wrote:
    > On Wed, 13 Dec 2006 23:30:55 +0100
    > Thomas Gleixner <> wrote:
    > > - IRQ happens
    > > - kernel handler runs and masks the chip irq, which removes the IRQ
    > > request
    > IRQ is shared with the disk driver, box dead.

    Err ?

    IRQ happens

    IRQ is disabled by the generic handling code

    Handler is invoked and checks, whether the irq is from the device or
    - If not, it returns IRQ_NONE, so the next driver (e.g. disk) is
    - If yes, it masks the chip on the device, which disables the chip
    interrupt line and returns IRQ_HANDLED.

    In both cases the IRQ gets reenabled from the generic irq handling code
    on return, so why is the box dead ?


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