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SubjectRe: Strange interrupt behaviour
On Fri, 17 Jul 1998, MOLNAR Ingo wrote:

>or, (beware, it's going to be ugly), read-only map the task stack's
>lower-4k as lower-4k of the IRQ handler. NOTE, there will be _no_ per-IRQ
>MMU cost with this trick, and it's nice with SMP and threads too.

After some days of study of mm layer and pdf x86 docs I am going to
writing some code.

The first problem that arise is where to put the virtual address of the
irq stacks. For a lot of reasons I think the best place for the virtual
irq stacks in the fixmap area. Is that the best place to put the irq
stack virtual addresses?

Andrea[s] Arcangeli


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