 <p>This happens because you have forgot a newline at the end of your log message. When the kernel outputs a partial message (by passing a string to <code>printk()</code> that does not end with a newline), the logging system will buffer the text until the rest of the message arrives. See also — <a href="http://lwn.net/Articles/503430/" rel="nofollow"><code>printk()</code> problems</a>.</p>