| Bug ID | 101977 |
|---|---|
| Summary | UE4 4.17 causes hang in amdgpu_cs_query_fence_status |
| Product | Mesa |
| Version | git |
| Hardware | x86-64 (AMD64) |
| OS | Linux (All) |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | Drivers/Gallium/radeonsi |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | ttimo@ttimo.net |
| QA Contact | dri-devel@lists.freedesktop.org |
Created attachment 133142 [details]
backtrace and dmesg
Ubuntu 16.04.2 LTS x86_64
kernel 4.12.4-041204-generic
Latest mesa git as of today 07/30
Latest UE4 4.17 out git branch as of today (4.17 not officially released yet)
clang 3.9 3.9.1-4ubuntu3~16.04.1 (tags/RELEASE_391/rc2) (used for mesa and UE4)
Starting the editor, or starting directly on a game, either in gl3 or gl4 mode
causes a hang. You have to use -NOSPLASH to avoid another, unrelated issue. My
typical command line looks like this:
UnrealEngine> set ver 3.9 ; env
LD_LIBRARY_PATH=$HOME/usr/lib:/usr/lib/llvm-$ver/lib
LIBGL_DRIVERS_PATH=$HOME/usr/lib/dri:/usr/lib/i386-linux-gnu/dri
LIBGL_DEBUG=verbose
VK_ICD_FILENAMES=/opt/Valve/mesa/src/amd/vulkan/dev_icd.json
./Engine/Binaries/Linux/UE4Editor-Linux-Debug -opengl4 -NOSPLASH
For GL3, pass -opengl3 on the command line and set env var
MESA_GL_VERSION_OVERRIDE=3.2 (results are the same)
Attaching backtrace and dmesg
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