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    SubjectRe: [RFC] Arch option to touch newly allocated pages
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    > caller.  This is actually wrong because in this failure case, it effectively
    > changes the semantics of GFP_USER, GFP_KERNEL, and the other blocking GFP_*
    > allocations to GFP_ATOMIC. And that's what forced UML to segfault the
    > compilations.

    GFP_KERNEL will sometimes return NULL.

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