We expect alloc_pages to fail for high-order pages under stressed memory conditions. It should then fall back to lower-order page allocations but due to excessive logging the system crashes. Use __GFP_NOWARN for high-order allocations to avoid excessive logging. (cherry picked from commit ff6ea62fe0687e754ddb64492e77fd75ad85fa02) CRs-Fixed: 454877 Change-Id: Ie18c2dddd6810038abad9b06c7838ff4a0844b6d Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>