As KOSAKI Motohiro mentioned, memory hotplug don't support 32bit since it was born, this patch disable memory hotremove when 32bit at compile time. Suggested-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> Signed-off-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx> --- mm/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/Kconfig b/mm/Kconfig index e742d06..ada9569 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -184,6 +184,7 @@ config MEMORY_HOTREMOVE bool "Allow for memory hot remove" select MEMORY_ISOLATION select HAVE_BOOTMEM_INFO_NODE if X86_64 + depends on 64BIT depends on MEMORY_HOTPLUG && ARCH_ENABLE_MEMORY_HOTREMOVE depends on MIGRATION -- 1.8.1.2 -- 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>