Can't reproduce, works fine for me using Mesa 19.0, RX 480, Kernel 5.0.
You might want to use wined3d for Battle.net, just set app-specific dll overrides in winecfg.
Thanks, I tried that but for some reason could not get the games working while Battle.net itself was running without DXVK. Anyway I did a clean install of my system and all is working fine again. Must have been something else that was broken, but I only noticed it in that instance. Very strange.
Nothing extracted yet.
The Battle.net app fills up all available memory (of 16gb total) seconds after launching, causing numerous VK_ERROR_MEMORY_MAP_FAILED errors and system freeze. This happens both with latest git versions of mesa/llvm/dxvk as well as older combinations that used to work, so I'm assuming something changed in the latest Battle.net updated to cause it.
Software information
Battle.net 1.13.2.11060
System information
Log files