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SubjectRe: [RFC] Arch option to touch newly allocated pages
On March 7, 2002 02:49 pm, Alan Cox wrote:
> Jeff Dike Apparently wrote
> > 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.

Sad but true. IMHO we are on track to fix that in this kernel cycle, with
better locked/dirty accounting and rmap to forcibly unmap pages when necessary.

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