On Fri, Jun 15, 2007 at 03:46:39PM +0100, Matthew Faulkner wrote: > Probably a very simple question, but can anyone tell me how the kernel > decides which CPU (or core) a hardware interrupt gets handled by? It programs the APIC. IRQs can be handled by a random CPU, by a set of CPUs, or by a single CPU. You can have some influence on the APIC IRQ routing by writing /proc/irq/<irqno>/smp_affinity . Erik -- They're all fools. Don't worry. Darwin may be slow, but he'll eventually get them. -- Matthew Lammers in alt.sysadmin.recovery
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