Messages in this thread | | | Date | Wed, 24 Mar 2010 21:42:15 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: [PATCH] Prevent nested interrupts when the IRQ stack is near overflowing v2 |
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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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