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    SubjectRe: [git pull] scheduler fixes
    On Sat, 31 Jan 2009 19:08:47 +0100
    Peter Zijlstra <peterz@infradead.org> wrote:

    > On Sat, 2009-01-31 at 20:49 +0300, Alexey Zaytsev wrote:
    > >
    > > And answering an earlier question, this happens only on i386 and only
    > > with 4K stacks because x86_64 dosn't have a separate softirq stack,
    > > so the preempt count diring the soft irq is at least IRQ_EXIT_OFFSET.
    >
    > What do the other 30 odd architectures that Linux supports do? Is i386
    > 4k really the _only_ with separate softirq stacks?

    x86-64 and some of the other platforms could do with IRQ stacks but that
    is another story.


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