We found 2 bugs while we test and develop memory hotplug. The hotplug code does not handle node_states[N_NORMAL_MEMORY] correctly, it may corrupt the memory. And we ensure the SLUB do NOT respond when node_states[N_NORMAL_MEMORY] is not changed. The patchset is based on mainline(3d0ceac129f3ea0b125289055a3aa7519d38df77) CC: David Rientjes <rientjes@xxxxxxxxxx> Cc: Minchan Kim <minchan.kim@xxxxxxxxx> CC: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> CC: Yasuaki Ishimatsu <isimatu.yasuaki@xxxxxxxxxxxxxx> CC: Rob Landley <rob@xxxxxxxxxxx> CC: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> CC: Jiang Liu <jiang.liu@xxxxxxxxxx> CC: Kay Sievers <kay.sievers@xxxxxxxx> CC: Greg Kroah-Hartman <gregkh@xxxxxxx> CC: Mel Gorman <mgorman@xxxxxxx> CC: 'FNST-Wen Congyang' <wency@xxxxxxxxxxxxxx> CC: linux-doc@xxxxxxxxxxxxxxx CC: linux-kernel@xxxxxxxxxxxxxxx CC: linux-mm@xxxxxxxxx Lai Jiangshan (2): memory_hotplug: fix possible incorrect node_states[N_NORMAL_MEMORY] slub, hotplug: ignore unrelated node's hot-adding and hot-removing Documentation/memory-hotplug.txt | 5 +- include/linux/memory.h | 1 + mm/memory_hotplug.c | 136 +++++++++++++++++++++++++++++++++----- mm/slub.c | 4 +- 4 files changed, 127 insertions(+), 19 deletions(-) -- 1.7.4.4 -- 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>