Some users says that crashing in Ashes of singularity can be connected to this problem:
"Both my machines have the Linux SEGV issue (R7-1700X, R7-1700) additionally - both machines can't run the Ashes of the Singulariy Escalation built-in Benchmark in either DX12 or VULKAN mode without crashing to the desktop. Disabling SMT seems to make the benchmark work but I believe the two are related (Linux SegV / AOTS crashing) - note, nothing overclocked on the system, just BIOS defaults.
I should have the R7-1700X back from AMD this upcoming week, and hopefully the R7-1700 a few days later. If it fixes the CTD's with AOTS Benchmark (DX12 / Vulkan) with only thing that was changed in the systems were the CPU's - then my theory is that Windows Games are also affected.
I'm not the only one that ran into the problem - couple others have reported it as well. If you have a Ryzen CPU, try running the AOTS:Singularity Benchmark a couple of times in DX12 or Vulkan mode only - if it CTDs, try turning off SMT."
https://www.reddit.com/r/Amd/comments/6w4d3e/should_windows_users_care_about_the_ryzen/
Also some mention that Shadow of mordor because high CPU usage crashes because of that segfault problem....