Index: sys/kern/kern_cpuset.c
===================================================================
--- sys/kern/kern_cpuset.c
+++ sys/kern/kern_cpuset.c
@@ -1743,9 +1743,28 @@
 	return (0);
 }
 
+/*
+ * TODO: At least powerpc64 and powerpc64le kernels panic with
+ * exception 0x480 (instruction segment exception) when copyin/copyout,
+ * are set as a function pointer in cpuset_copy_cb struct and called by
+ * an external module (like pfsync). Tip: copyin/copyout have an ifunc
+ * resolver function.
+ */
+static int
+cpuset_copyin(const void *uaddr, void *kaddr, size_t len)
+{
+	return(copyin(uaddr, kaddr, len));
+}
+
+static int
+cpuset_copyout(const void *kaddr, void *uaddr, size_t len)
+{
+	return(copyout(kaddr, uaddr, len));
+}
+
 static const struct cpuset_copy_cb copy_set = {
-	.cpuset_copyin = copyin,
-	.cpuset_copyout = copyout
+	.cpuset_copyin = cpuset_copyin,
+	.cpuset_copyout = cpuset_copyout
 };
 
 #ifndef _SYS_SYSPROTO_H_