Description:

RADV based games experience freeze -- this did not happen with 18.1.x, same games, same configs:

* Rise of the tomb rider
* GTAV (via Steam Play -- proton 3.7.6, run using: PROTON_NO_ESYNC=1 %command%)

GPU (rx480 8GB Sapphire Nitro+):
lspci | grep VGA
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X] (rev c7)

No info/log found with dmesg

uname -a
Linux moby 4.18.9-arch1-1-ARCH #1 SMP PREEMPT Wed Sep 19 21:19:17 UTC 2018 x86_64 GNU/Linux

Additional info:
* package version(s)
pacman -Q --info mesa
Name : mesa
Version : 18.2.1-1
Description : An open-source implementation of the OpenGL specification
Architecture : x86_64
URL : https://www.mesa3d.org/
Licenses : custom
Groups : None
Provides : ati-dri intel-dri nouveau-dri svga-dri mesa-dri
mesa-libgl opengl-driver
Depends On : libdrm wayland libxxf86vm libxdamage libxshmfence libelf
libomxil-bellagio libunwind llvm-libs lm_sensors libglvnd
Optional Deps : opengl-man-pages: for the OpenGL API man pages
mesa-vdpau: for accelerated video playback [installed]
libva-mesa-driver: for accelerated video playback [installed]
Required By : blur-effect deepin-cogl gst-plugins-base-libs gtk3 kodi
lib32-mesa libglvnd qt5-base weston xf86-video-amdgpu
xf86-video-ati
Optional For : None
Conflicts With : ati-dri intel-dri nouveau-dri svga-dri mesa-dri
mesa-libgl
Replaces : ati-dri intel-dri nouveau-dri svga-dri mesa-dri
mesa-libgl
Installed Size : 47.85 MiB
Packager : Laurent Carlier <lordheavym@gmail.com>
Build Date : Fri 21 Sep 2018 19:37:55 IST
Install Date : Mon 24 Sep 2018 18:06:09 IST
Install Reason : Explicitly installed
Install Script : No
Validated By : Signature

pacman -Q --info vulkan-radeon
Name : vulkan-radeon
Version : 18.2.1-1
Description : Radeon's Vulkan mesa driver
Architecture : x86_64
URL : https://www.mesa3d.org/
Licenses : custom
Groups : None
Provides : vulkan-driver
Depends On : wayland libx11 libxshmfence libelf libdrm llvm-libs
Optional Deps : None
Required By : None
Optional For : vulkan-icd-loader
Conflicts With : None
Replaces : None
Installed Size : 2.25 MiB
Packager : Laurent Carlier <lordheavym@gmail.com>
Build Date : Fri 21 Sep 2018 19:37:55 IST
Install Date : Mon 24 Sep 2018 18:06:11 IST
Install Reason : Explicitly installed
Install Script : No
Validated By : Signature

pacman -Q --info llvm
Name : llvm
Version : 6.0.1-4
Description : Collection of modular and reusable compiler and toolchain technologies
Architecture : x86_64
URL : https://llvm.org/
Licenses : custom:University of Illinois/NCSA Open Source License
Groups : None
Provides : None
Depends On : llvm-libs perl
Optional Deps : python-setuptools: for using lit (LLVM Integrated Tester) [installed]
Required By : lib32-llvm
Optional For : None
Conflicts With : None
Replaces : None
Installed Size : 170.43 MiB
Packager : Juergen Hoetzel <juergen@archlinux.org>
Build Date : Tue 14 Aug 2018 08:00:33 IST
Install Date : Thu 16 Aug 2018 21:23:40 IST
Install Reason : Installed as a dependency for another package
Install Script : No
Validated By : Signature

pacman -Q --info xorg-server
Name            : xorg-server
Version         : 1.20.1-1
Description     : Xorg X server
Architecture    : x86_64
URL             : http://xorg.freedesktop.org
Licenses        : custom
Groups          : xorg
Provides        : X-ABI-VIDEODRV_VERSION=24.0  X-ABI-XINPUT_VERSION=24.1  X-ABI-EXTENSION_VERSION=10.0  x-server
Depends On      : libepoxy  libxfont2  pixman  xorg-server-common  libunwind  dbus  libgl  xf86-input-libinput  nettle  libpciaccess  libdrm  libxshmfence
Optional Deps   : None
Required By     : deepin-session-ui
Optional For    : None
Conflicts With  : nvidia-utils<=331.20  glamor-egl  xf86-video-modesetting
Replaces        : glamor-egl  xf86-video-modesetting
Installed Size  : 3.54 MiB
Packager        : Laurent Carlier <lordheavym@gmail.com>
Build Date      : Thu 09 Aug 2018 19:37:34 IST
Install Date    : Thu 16 Aug 2018 21:22:52 IST
Install Reason  : Explicitly installed
Install Script  : Yes
Validated By    : Signature


Steps to reproduce:

run RADV game Rise of the tomb rider -- benchmark mode