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    SubjectRe: USB transfer_buffer allocations on 64bit systems
    On Fri, 9 Apr 2010, Pedro Ribeiro wrote:

    > > The DMA pointers do indeed look sane. I wanted to take a deeper look at
    > > this and set up a 64bit system today. However, I fail to see the problem
    > > here. Pedro, how much RAM does your machine have installed?

    > It has 4 GB.

    That means DMA mapping cannot be the cause of the problem. :-(

    Alan Stern

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