Bug ID 22842138
Issue: When performing a warm reboot of Oracle Linux 6.7, 7.1, or 7.2 and the Unbreakable Enterprise Kernel 4 (UEK4), a Call Trace warning message might appear that indicates there is a busy endpoint. If there is still data in transfer queue when the NetworkManager service resets the internal usbnet device, the system prints the warning message once.
Affected software: Oracle Linux 6.7, 7.1, and 7.2 with UEK4 kernel
Workaround: This is a benign warning message that can be safely ignored.