Messages in this thread | | | Date | Wed, 24 Nov 2010 14:18:39 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: [question] NR_IRQS in genirq |
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On Wed, 24 Nov 2010, Haojian Zhuang wrote:
> Hi all, > > I'm using the latest kernel 2.6.37-rc1. Now I met some issues on genirq. > > 1. While SPARSE IRQ is enabled, nr_irqs may be larger than NR_IRQS. > But the allocated_irqs bitmap (kernel/irq/irqdesc.c) is restricted in > NR_IRQS. Is it an issue?
Why can nr_irqs become larger? Is that a theoretical problem or did you run into this ?
Thanks,
tglx
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