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    SubjectRe: [PATCH] Prevent nested interrupts when the IRQ stack is near overflowing v2
    B1;2005;0cOn Wed, 24 Mar 2010, Andi Kleen wrote:

    > Prevent nested interrupts when the IRQ stack is near overflowing v2
    >
    > Interrupts can always nest when they don't run with IRQF_DISABLED.
    >
    > When a lot of interrupts hit the same vector on the same
    > CPU nested interrupts can overflow the irq stack and cause hangs.
    >
    > This has been observed with MSI-X & Ethernet on a large system.

    In which way are which interrupts nested ?

    Thanks,

    tglx


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