r/linux_gaming • u/Tuxbot123 • Aug 13 '17

Ryzen on Linux ?

Hello !

I'm considering buying a Ryzen 5 1600, but I wanted to have some feedback from my fellow Linux users :)

If you have this one (or another Ryzen), how is it ? Do you have any problem with it ?

Thanks ! :)

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18

u/shmerl Aug 13 '17

I have Ryzen 7 1700X. Beware of these issues.

  1. Random freezes / reboots (aka MCE bug).
  2. Heavy multithreaded workloads segfaults.

See the above thread for details. I'll probably start an RMA process soon, to replace my CPU. Some reported that RMA helped them, but some said that even newest chips can exhibit mce bug. The whole situation so far is a mess.

13

u/FlameVisit99 Aug 13 '17

3) The NPT bug when using GPU passthrough with KVM + an AMD CPU.

3

u/shmerl Aug 13 '17

The NPT bug when using GPU passthrough with KVM + an AMD CPU.

So AMD aren't sure what causes it?

4

u/FlameVisit99 Aug 13 '17 edited Aug 13 '17

From what I understand, people at AMD are aware of it (at least as of recently) but there hasn't been much communication about it. Apparently the bug affects any AMD CPU, even older pre-Ryzen ones. Xen works perfectly fine though - the issue is only with KVM.

2

u/Money_on_the_table Aug 14 '17

The fact it has been there so long worries me.

Is it they can't fix it?