On Sun, Mar 10, 2013 at 10:49 PM, Tang Chen <tangc...@cn.fujitsu.com> wrote: > On 03/10/2013 02:44 PM, Yinghai Lu wrote: >> >> Calling init_mem_mapping in early_initmem_init for every node. >> alloc_low_pages will alloc page table in following order: >> BRK, local node, low range >> So page table will be on low range or local nodes. ... > IIUC, we call init_mem_mapping() for each node ranges. In the first time, > local_max_pfn_mapped = begin >> PAGE_SHIFT; > local_min_pfn_mapped = real_end >> PAGE_SHIFT; > which means > local_min_pfn_mapped >= local_max_pfn_mapped > right ? > > So, the first page allocated by alloc_low_pages() is not on local node, > right ?
It is from BRK with kernel code. > Furthermore, the first page of pagetable is not on local node, right ? It is in BRK for node with start = 0. Other node, it is from low_range aka node with start = 0. Thanks Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
