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SubjectRe: stack overflow on Sparc64
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From: Mikulas Patocka <mpatocka@redhat.com>
Date: Fri, 20 Jun 2008 17:14:41 -0400 (EDT)

> Are you sure? What about this:
> ide-io.c:ide_intr
> if (drive->unmask)
> local_irq_enable_in_hardirq();
>
> or this:
> kernel/irq/handle.c:handle_IRQ_event
> if (!(action->flags & IRQF_DISABLED))
> local_irq_enable_in_hardirq();
>
>
> --- how is number of nested interrupts here supposed to be limited?
>
> If these things are not limited, you get at most as many nested handlers
> as there are hardware interrupts, which means crash.

It means i386 and every other platform potentially has the same exact
problem.

What point wrt. sparc64 are you trying to make here? :-)




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