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    SubjectRe: alpha iommu fixes
    Hi!

    > > > [..] Even sparc64's fancy
    > > > iommu-based pci_map_single() always succeeds.
    > >
    > > Whatever sparc64 does to hide the driver bugs you can break it if you
    > > pci_map 4G+1 bytes of phyical memory.
    >
    > Which is an utterly stupid thing to do.
    >
    > Please construct a plausable situation where this would occur legally
    > and not be a driver bug, given the maximum number of PCI busses and
    > slots found on sparc64 and the maximum _concurrent_ usage of PCI dma
    > space for any given driver (which isn't doing something stupid).

    What stops you from plugging PCI-to-PCI bridges in order to create
    some large number of slots, like 128?
    Pavel
    --
    I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care."
    Panos Katsaloulis describing me w.r.t. patents at discuss@linmodems.org
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