FYI, we noticed the below changes on git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master commit 0166dc11be911213e0b1b764488c671be4c48cf3 ("of: make CONFIG_OF user selectable") The following new message in kernel log may make end user confusing: [ 13.474989] Failed to find cpu0 device node [ 13.474989] Failed to find cpu0 device node [ 13.475977] Unable to detect cache hierarcy from DT for CPU 0 [ 13.475977] Unable to detect cache hierarcy from DT for CPU 0 The test is run in qemu i386. Thanks, Ying Huang