Comment 32 for bug 1521173

I exhibited similar symptoms when installing Ubuntu 16.04.1 LTS on an Asus x541u VivoBook Max system. When performing the installation, the logs would fill up with these errors and eventually fail because of lack of disk space. I found the following thread helpful...
http://www.gossamer-threads.com/lists/linux/kernel/2250177

The workaround for me was to hold left SHIFT, edit the grub menu and add the pcie_aspm=off kernel parameter to suppress the messages during the installation and every subsequent boot. Adding these options to the grub configuration after installing was the long-term workaround.