Quoting from kernel commit
9f3a90e89...:
Caused by commit
30c05350c39d ("powerpc/pseries: Use stop machine to
update cpu maps") from the powerpc tree interacting with (probably)
commit
ff794dea52ea ("cpuset: remove include of cgroup.h from cpuset.h")
from the cgroup tree. Removing includes from header files is fraught
with danger ...
#include <linux/kprobes.h>
#include <linux/proc_fs.h>
#include <linux/vmalloc.h>
+#include <linux/slab.h>
#include <linux/time.h>
#include <linux/random.h>
#include <linux/spinlock.h>