r ARMv8 Cortex-A57 testing with a quill and NVIDIA Tegra X2 on Ubuntu 18.04 via the Phoronix Test Suite. rr: Processor: ARMv8 Cortex-A57 @ 2.04GHz (6 Cores), Motherboard: quill, Memory: 8192MB, Disk: 31GB 032G34, Graphics: NVIDIA Tegra X2, Monitor: Acer KG241Q OS: Ubuntu 18.04, Kernel: 4.9.140-tegra (aarch64), Desktop: Unity 7.5.0, Display Server: X Server 1.19.6, Display Driver: NVIDIA 32.3.1, OpenGL: 4.6.0, Vulkan: 1.1.85, Compiler: GCC 7.4.0, File-System: ext4, Screen Resolution: 1920x1080 Serial Loopback Test /dev/ttyTHS1 /dev/ttyTHS1 rr . FAIL