On Thu, 03 Oct 2013 11:32:02 +0800 Zhang Yanfei <zhangyanfei.yes@xxxxxxxxx> wrote: > We pass the number of pages which hold page structs of a memory > section to function free_map_bootmem. This is right when > !CONFIG_SPARSEMEM_VMEMMAP but wrong when CONFIG_SPARSEMEM_VMEMMAP. > When CONFIG_SPARSEMEM_VMEMMAP, we should pass the number of pages > of a memory section to free_map_bootmem. > > So the fix is removing the nr_pages parameter. When > CONFIG_SPARSEMEM_VMEMMAP, we directly use the prefined marco > PAGES_PER_SECTION in free_map_bootmem. When !CONFIG_SPARSEMEM_VMEMMAP, > we calculate page numbers needed to hold the page structs for a > memory section and use the value in free_map_bootmem. What were the runtime user-visible effects of that bug? Please always include this information when fixing a bug. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>