hi Parmenides On Sat, Nov 19, 2011 at 4:27 AM, Parmenides <[email protected]> wrote: > Hi, > > It is said that an IRQ line is disabled when the same IRQ line is > in process. But, is the IRQ line disabled on the local CPU or all > CPUs? Another relevant question is that the disable_irq() funciton > will disable an IRQ line on local CPU or all CPUs. IRQ is disabled in all processors. disable_irq() function disables the delivery of the given interrupt to all processors.Additionally the disable_irq function does not return until any currently executing handler completes. > > _______________________________________________ > Kernelnewbies mailing list > [email protected] > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >
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