title: Process killed on linux unexpectedly
body: <p>My process gets killed on linux server without manual intervention. I have verified the following scenarios.</p>
  
  <ul>
  <li>No manual intervention done to kill either by user or admin</li>
  <li>RAM and SWAP are not exhausted</li>
  <li>'strace' gives me the message that "+++ killed by SIGKILL +++" - This makes me to assume that Kernel has killed the process.</li>
  </ul>
  
  <p>The process occupies 16.5GB of virtual memory where the RAM is 16GB and the SWAP being 50GB.</p>
  
  <p>Tasks: 393 total,   2 running, 387 sleeping,   4 stopped,   0 zombie</p>
  
  <p>Cpu(s): 12.8%us,  0.5%sy,  0.0%ni, 86.7%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st</p>
  
  <p>Mem:     <strong>16015M</strong> total,     8700M used,     7315M free,      202M buffers</p>
  
  <p>Swap:    <strong>51199M</strong> total,      150M used,    51048M free,     5906M cached</p>
  
  <p>PID    USER      PR    NI  <strong>VIRT</strong>  RES  SHR S %CPU %MEM    TIME+  COMMAND</p>
  
  <p>31466  xyz        20   0   <strong>16.4g</strong> 1.3g 6704 R  100  8.3   0:16.99   <em>test*</em></p>
  
  <p>Could you please tell me the other reasons for Kernel to kill the process..</p>