Vitalii I see, so there is no indication if the problems you are facing might be a regression or not. In this case i think it could be worth trying 9.3 release instead of current. While NetBSD 10 is likely to be released soon and i don't know how big the difference between 10 and current actually is, current is still basically a development snapshot and not really an official release. I am not saying that your choice of current is wrong or anything as it's pros and cons largely depend on the intended usecase and personal preference, personally i tend to go with the most stable approach possible when trying new configurations though. If things go smoothly i can still move to a more bleeding edge version later (which i usually avoid unless i really need one of the new features or there is other substancial gain but that's where personal preference enters the picture).