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    SubjectRe: USB problem on x86_64: nommu_map_single() issue?
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    Am Dienstag, 14. Oktober 2008 12:45:00 schrieb Nicolas Bareil:

    Hello,

    > Hi Oliver,
    >
    > On Tue, Oct 14, 2008 at 11:48:47AM +0200, Oliver Neukum wrote:
    > > > On 2.6.27, I can't use any USB device (mass storage, mouse) anymore on my x86_64 system, the devices
    > > > are not detected: lsusb returns nothing except the hub.
    > >
    > > Is this a regression? Did it work on earlier kernels?
    >
    > Yes this is a regression: USB works in 2.6.26.x with (almost) the same configuration.

    This a an IOMMU problem, not really a USB problem. Can you bisect the problem?

    Regards
    Oliver


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