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    In order to use Jens' zero-bounce highmem I/O patch against 2.4.6,
    a small modification for the patch is needed. Simply replace
    GFP_BUFFER by GFP_NOIO in block-highmem-all-5.gz, which can be obtained
    at http://www.kernel.org/pub/linux/kernel/people/axboe/patches/2.4.6-pre1/.

    However, there is another problem. For both 2.4.5 and 2.4.6 with
    Jens' patches, if the kernels are built with 4GB highmem, they
    boot without problems. But if the kernels are built with 64GB
    highmem, the kernels hang right after uncompressing Linux. Has
    anyone seen this problem?

    Thanks,
    Peter

    Wai Yee Peter Wong
    IBM Linux Technology Center, Performance Analysis
    email: wpeter@us.ibm.com
    Office: (512) 838-9272, T/L 678-9272; Fax: (512) 838-4663

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