Re: [PATCH] sparsemem vmemmap: initialize memmap.

[Christoph Lameter]

Nack. vmemmap_alloc_block does 

void * __meminit vmemmap_alloc_block(unsigned long size, int node)
{
        /* If the main allocator is up use that, fallback to bootmem. */
        if (slab_is_available()) {
                struct page *page = alloc_pages_node(node,
                                GFP_KERNEL | __GFP_ZERO, get_order(size));
                if (page)
                        return page_address(page);
                return NULL;
        } else
                return __earlyonly_bootmem_alloc(node, size, size,
                                __pa(MAX_DMA_ADDRESS));
}

memory is always zeroed. Maybe you use an alternate implementation that is 
broken?


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