Universal forwarder consuming 100% CPU. "WARN TimeoutHeap - Either time adjusted forwards by, or event loop was descheduled for 490844ms"

Splunk consumes 100% of the CPU. Installed version is 6.4. Splunk log: 07-13-2016 19:18:11.904 -0500 WARN TimeoutHeap - Either time adjusted forwards by, or event loop was descheduled for 490844ms. 07-13-2016 19:18:11.904 -0500 WARN TimeoutHeap - Either time adjusted forwards by, or event loop was descheduled for 490813ms.