pearlp2 dracut timeout /dev/root does not exist during RHEL 7.2 LE install

Issue

*IBM Power LPAR with (#EC3A/#EC3B) PCIe3 2-Port 40 GbE NIC RoCE QSFP+ Adapter using mlx4_en driver drops into dracut during install after menu entry selection for network install. This can be caused by an initialize queue time out problem on adapter.

*Example of screen:

[  207.481074] dracut-initqueue[656]: Warning: dracut-initqueue timeout -
starting timeout scripts
 [  207.990769] dracut-initqueue[656]: Warning: dracut-initqueue timeout -
starting timeout scripts
[  208.504289] dracut-initqueue[656]: Warning: dracut-initqueue timeout -
starting timeout scripts
[  208.504621] dracut-initqueue[656]: Warning: Could not boot.
[  208.504874] dracut-initqueue[656]: Warning: /dev/root does not exist
Starting Setup Virtual Console...
[[32m  OK  [0m] Started Setup Virtual Console.
Starting Dracut Emergency Shell...
Warning: /dev/root does not exist

Generating "/run/initramfs/rdsosreport.txt"

Entering emergency mode. Exit the shell to continue.
Type "journalctl" to view system logs.
You might want to save "/run/initramfs/rdsosreport.txt" to a USB stick or /boot
after mounting them and attach it to a bug report.


dracut:/# ^C