title: Audit Backlog hangs linux server?
body: <p>I am using centos 7 server in which am running realtime Multithreaded processes. After 2 or 3 days of continues running server goes to freeze state and am not able to access it.One time i luckily logged in and i saw CPU</p>
  
  <pre><code>[564378.509785] audit_log_start: 14 callbacks suppressed    
  [564678.515440] audit: audit_backlog=65 &gt; audit_backlog_limit=64    
  [564678.522037] audit: audit_lost=22 audit_rate_limit=0 audit_backlog_limit=64    
  [564678.529822] audit: backlog limit exceeded
  </code></pre>
  
  <p>Is it possible like some thread/process is hanged and due that auditd is not able to log the events?</p>