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This code has an optimised, word aligned version, and a boring unaligned version. Recently 084140bd498909 fixed a missing offset addition from the core of both versions. However, the offset isn't necessarily aligned and thus the choice between the two versions needs fixing up to also include the offset. Symptom: A few stuck unsent pages during migration; not normally noticed unless under very low bandwidth in which case the migration may get stuck never ending and never performing a 2nd sync; noticed by a hanging postcopy-test on a very heavily loaded system. Fixes: 084140bd498909 Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reported-by: Alex Benneé <alex.benee@linaro.org> Tested-by: Alex Benneé <alex.benee@linaro.org> -- v2 Move 'page' inside the if (Comment from Paolo) Message-Id: <20170724165125.29887-1-dgilbert@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>