FYI, we noticed the below changes on git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master commit 27356f54c8c32609ff45b4ed333bb64fb2eef374 ("mm/hotplug: verify hotplug memory range") This may be the expected behavior, we found the following new line in dmesg during boot test for this commit. [ 6.774235] Section-unaligned hotplug range: start 0x1000000, size 0x7b000000 Thanks, Ying Huang