title: What is the meaning of 'code' in Segmentation Fault
body: <p>I see these 2 segmentation faults in android. 
  One said SEGV_MAPERR, the other said SEGV_ACCERR.</p>
  
  <p>Can you please tell me what are the differences between these 2?</p>
  
  <pre><code>signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 41963214
  
  signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr 4006e000
  </code></pre>
  
  <p>Thanks.</p>