There has been an instability issues with UE4 and Vulkan on Linux with NVidia hardware and numerous crashes.
An example:
With just the Launcher (Editor without a project selected to start with) and hover your mouse over the images of projects, it crashes when the tool tip displaying some information about the project it crashes.
OS: Linux
Distro: OpenSUSE Tumbleweed
Linux Arch: x86_64
NVidia Proprietary Drivers: 418.43
System Information (Via Steam):
Computer Information:
Manufacturer: Unknown
Model: Unknown
Form Factor: Desktop
No Touch Input Detected
Processor Information:
CPU Vendor: AuthenticAMD
CPU Brand: AMD FX(tm)-8350 Eight-Core Processor
CPU Family: 0x15
CPU Model: 0x2
CPU Stepping: 0x0
CPU Type: 0x0
Speed: 4027 Mhz
8 logical processors
8 physical processors
HyperThreading: Unsupported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Supported
SSE41: Supported
SSE42: Supported
AES: Supported
AVX: Supported
CMPXCHG16B: Supported
LAHF/SAHF: Supported
PrefetchW: Unsupported
Operating System Version:
"openSUSE Tumbleweed" (64 bit)
Kernel Name: Linux
Kernel Version: 4.20.13-1-default
X Server Vendor: The X.Org Foundation
X Server Release: 12004000
X Window Manager: Xfwm4
Steam Runtime Version: steam-runtime-beta-release_2019-01-10
Video Card:
Driver: NVIDIA Corporation GeForce GTX 960/PCIe/SSE2
Driver Version: 4.6.0 NVIDIA 418.43
OpenGL Version: 4.6
Desktop Color Depth: 24 bits per pixel
Monitor Refresh Rate: 60 Hz
VendorID: 0x10de
DeviceID: 0x1401
Revision Not Detected
Number of Monitors: 1
Number of Video Cards Not Detected
Primary Display Resolution: 1920 x 1080
Desktop Resolution: 1920 x 1080
Primary Display Size: 20.08" x 11.30" (23.03" diag)
51.0cm x 28.7cm (58.5cm diag)
Primary Bus: PCI Express 16x
Primary VRAM: 2048 MB
Supported MSAA Modes: 2x 4x 8x 16x
Sound card:
Audio device: Realtek ALC892
Memory:
RAM: 15934 Mb
Miscellaneous:
UI Language: English
LANG: en_US.UTF-8
Total Hard Disk Space Available: 807303 Mb
Largest Free Hard Disk Block: 93733 Mb
VR Headset: None detected
Recent Failure Reports:
Short error log with call stack:
[2019.03.15-14.44.57:234][ 31]LogCore: Error: appError called: Assertion failed: UploadCmdBuffer [File:/store/UnrealEngine/Engine/Source/Runtime/VulkanRHI/Private/VulkanCommandBuffer.cpp] [Line: 372]
[2019.03.15-14.44.57:243][ 31]LogCore: === Critical error: ===
Unhandled Exception: SIGSEGV: invalid attempt to read memory at address 0x0000000000007f0c
[2019.03.15-14.44.57:243][ 31]LogCore: Assertion failed: UploadCmdBuffer [File:/store/UnrealEngine/Engine/Source/Runtime/VulkanRHI/Private/VulkanCommandBuffer.cpp] [Line: 372]
0x00007f626ed403f6 libUE4Editor-Engine.so!UEngine::UpdateTimeAndHandleMaxTickRate() [/store/UnrealEngine/Engine/Source/Runtime/Engine/Private/UnrealEngine.cpp:1948]
0x000000000023b153 UE4Editor!FEngineLoop::Tick() [/store/UnrealEngine/Engine/Source/Runtime/Launch/Private/LaunchEngineLoop.cpp:3817]
0x0000000000248d33 UE4Editor!GuardedMain(char16_t const*) [/store/UnrealEngine/Engine/Source/Runtime/Launch/Private/Launch.cpp:170]
0x00007f62643b2ea9 libUE4Editor-UnixCommonStartup.so!CommonUnixMain(int, char**, int (*)(char16_t const*)) [/store/UnrealEngine/Engine/Source/Runtime/Unix/UnixCommonStartup/Private/UnixCommonStartup.cpp:243]
0x00007f62640b6b7b libc.so.6!__libc_start_main(+0xea)
0x0000000000230029 UE4Editor!_start()
nvidia-bug-report.log.gz (692 KB)
UE4.log (62.6 KB)