title: Enlarge Linux Kernel Log Buffer more that 2M
body: <p>I am in the process of collecting some sort of Linux Kernel activities. I have placed multiple <code>printk</code> statements with in the kernel source code and would like to monitor those during regular kernel activities. Unfortunately, I have realized that the Kernel Log Buffer size (<code>CONFIG_LOG_BUF_SHIFT</code>) cannot be more that 2^21 which is essentially equal to 2M entries. </p>
  
  <p>Is there any other way to record more than 2M Kernel messages ?</p>