Description of problem:
nodes/ip-10-0-151-123.us-west-1.compute.internal/journal.gz:Apr 19 14:47:36.973476 ip-10-0-151-123 hyperkube[1418]: E0419 14:47:36.973403    1418 runtime.go:78] Observed a panic: "invalid memory address or nil pointer dereference" (runtime error: invalid memory address or nil pointer dereference)

occurring frequently, see:
https://search.ci.openshift.org/?search=undiagnosed+panic&maxAge=48h&context=1&type=junit&name=&excludeName=&maxMatches=5&maxBytes=20971520&groupBy=job

sample job:
https://prow.ci.openshift.org/view/gs/origin-ci-test/logs/periodic-ci-openshift-release-master-nightly-4.8-e2e-aws-canary/1384139611290210304


Version-Release number of selected component (if applicable):
4.8

Actual results:
hyperkube process appears to be panicking

Expected results:
OCP processes should not panic