On Fri, 2019-06-21 at 23:50 +0900, Masami Hiramatsu wrote:

On Tue, 18 Jun 2019 20:17:06 +0530
"Naveen N. Rao" [off-list ref] wrote:

trivia:

quoted

diff --git a/arch/powerpc/kernel/kprobes-ftrace.c b/arch/powerpc/kernel/kprobes-ftrace.c

[]

quoted

@@ -57,6 +82,11 @@ NOKPROBE_SYMBOL(kprobe_ftrace_handler);
 
 int arch_prepare_kprobe_ftrace(struct kprobe *p)
 {
+	if ((unsigned long)p->addr & 0x03) {
+		printk("Attempt to register kprobe at an unaligned address\n");

Please use the appropriate KERN_<LEVEL> or pr_<level>