Bug ID 21073340
Issue: Oracle Linux 6.6 or 7.1 might display the following message and hang during a system reboot.
INFO: task modprobe:2320 blocked for more than 120 seconds
Affected software: Oracle Linux 6.6 and 7.1
Workaround: Update to Unbreakable Enterprise Kernel (UEK) (3.8.13-68.2.2.el6uek.x86_64) or above.