title: Viewing Kernel logs after crash
body: <p>I'm debugging a system crash. I got OOPS message and found the buggy piece of code. I wish I had the output of dmesg just before the crash. However, I have the System.map file for the kernel. How can I use it to view the last messages collected by the ring buffer used by dmesg.</p>
  
  <p>The log messages are certainly being appended to some logfile in the RAM. Can you help me to find the address where the logfile is being created or how can I extract the logfile?</p>
  
  <p>~Thanks</p>