serialloop
Intel Core i5-4250U testing with a Intel D54250WYK (WYLPT10H.86A.0045.2017.0302.2108 BIOS) and Intel Haswell Mobile 1536MB on Fedora 28 via the Phoronix Test Suite.


Intel Core i5-4250U - Intel Haswell Mobile 1536MB -: 

	Processor: Intel Core i5-4250U @ 2.60GHz (2 Cores / 4 Threads), Motherboard: Intel D54250WYK (WYLPT10H.86A.0045.2017.0302.2108 BIOS), Chipset: Intel Haswell-ULT DRAM, Memory: 1 x 8192 MB DDR3-1600MT/s, Disk: 250GB Samsung SSD 840, Graphics: Intel Haswell Mobile 1536MB (1000MHz), Audio: Intel Haswell-ULT HD Audio, Monitor: HP E231, Network: Intel Connection I218-V + Intel Wireless 7260

	OS: Fedora 28, Kernel: 4.17.7-200.fc28.x86_64 (x86_64), Desktop: GNOME Shell 3.28.3, Display Server: X Server 1.19.6, OpenGL: 4.5 Mesa 18.0.5, Compiler: GCC 8.1.1 20180712, File-System: ext4, Screen Resolution: 1920x1080


Serial Loopback Test
/dev/ttyS0
/dev/ttyS0
Intel Core i5-4250U - Intel Haswell Mobile 1536MB - . FAIL