The AMD Ryzen 3000 family of processors appeared on the market the day before yesterday, and initial tests showed that they perform quite well. However, it has become clear that they have their issues. It turns out that the 'three-thousand' series has a flaw that causes a boot failure in the latest 2019 Linux distributions.
The exact cause has not been reported yet, but it is presumed that the issue relates to the RdRand instruction, which somehow conflicts with systemd. Notably, this problem with this instruction has occurred before on older processors, but AMD has not acknowledged the issue then or now.
The essence of the matter is that the latest version of systemd has significant changes that seem to not work with RdRand. Older versions function properly, such as on Ubuntu 18.04 LTS. Currently, the issue is observed on Arch Linux and Clear Linux, and possibly on other distributions.
It is worth noting that this is not the only 'glitch' arising from the interaction between new processors and software. A post on Reddit stated that Destiny 2 does not launch on systems equipped with AMD Ryzen 3000 series processors.
The player who reported this, mentioned that the game does not start after launching from Battle.net, although the process is visible in the task manager and uses up to 10% of CPU resources. This is confirmed by users on Bungie forums. It seems that the problem affects all systems on the new 'red' processors. Claims state that changing the processor's operating mode, disabling hyper-threading, and so on does not yield any results.
Source: 3dnews.ru
