On Tue, Oct 13, 2020 at 11:19:43AM +0800, Jinyang He wrote: > Commit e7ae8d174eec ("MIPS: replace add_memory_region with memblock") this commit just changed code and doesn't change the problem you want to solve. > replaced add_memory_region(, , BOOT_MEM_RAM) with memblock_add(). But > it doesn't work well on some platforms which have NUMA like Loongson64. > Because memblock_add() calls memblock_add_range() and sets memory at > MAX_NUMNODES. As mm/memblock.c says, assign the region to a NUMA node > later by using memblock_set_node(). This patch provides a NUMA port so it says later, which doesn't have to be right after the memblock_add. I don't know why you need the whole mem=/memmap= game, but please do a for_each_memblock(...) memblock_set_node(...); somewhere in arch/mips/loongson64 to fix up the memory blocks as needed. Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]