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Mike Hommey edited this page Sep 18, 2020 · 32 revisions

Experimental support for AMD Zen-based CPUs has been merged on September 18, 2020.

So far it has been validated to work on:

  • Threadripper 3970X
  • Ryzen 1800X

You may see the following message when running rr:

On Zen CPUs, rr will not work reliably unless you disable the hardware SpecLockMap optimization.

In that case, please run the scripts/zen_workaround.py script from the rr repository as root. You will need to rerun this script after each reboot/suspend.

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