protonscr

Onimusha: Way of the Sword

protonclosed appid 2638890Game compatibility - Unofficial
ValveSoftware/Proton#10207 · opened 2026-10-01 by BoomF3 · updated 2026-10-02 · 1 comments · github · game page · search this game
BBoomF3 2026-10-01 github

Compatibility Report

  • Name of the game with compatibility issues: Onimusha: Way of the Sword
  • Steam AppID of the game: 2638890

System Information

  • GPU: AMD Radeon RX 9070 XT (RADV GFX1201)
  • Video driver version: Mesa 26.2.3 (vulkan-radeon 26.2.3)
  • Kernel version: 7.2.7-arch1-1
  • CPU: AMD Ryzen 7 9800X3D
  • RAM: 32 GB DDR5-6000
  • Distro / desktop: Arch Linux, Hyprland 0.56.2 (Wayland, game runs through XWayland)
  • Proton version: Proton 11.0-2c (also reproduced with Proton Experimental)
  • Game build ID: 24769601
  • Full system information: see the collapsed section at the bottom

I confirm:

  • [x] that I haven't found an existing compatibility report for this game.
  • [x] that I have checked whether there are updates for my system available.

Proton log: steam-2638890-crash-2026-10-02.log.gz

Symptoms

The game closes to the desktop without any error message after 7 to 30 minutes of normal gameplay. It has happened in 5 out of 6 sessions.

The Proton log shows EXCEPTION_STACK_OVERFLOW in a game thread. Every frame of the backtrace is inside OnimushaWotS.exe:

9367.551:013c:0214:trace:seh:dispatch_exception code=c00000fd (EXCEPTION_STACK_OVERFLOW) flags=0 addr=0000000144834A15
9367.551:013c:0214:trace:seh:dispatch_exception rip=0000000144834a15 rsp=00000000751afab0 rbp=0800000000000000 eflags=00010206
9367.551:013c:0214:warn:seh:virtual_unwind backtrace: 0000000144834A15: L"OnimushaWotS.exe" + 0000000004834A15.
9367.551:013c:0214:warn:seh:virtual_unwind backtrace: 00000001448342E7: L"OnimushaWotS.exe" + 00000000048342E7.
9367.551:013c:0214:warn:seh:virtual_unwind backtrace: 0000000144BB8AE6: L"OnimushaWotS.exe" + 0000000004BB8AE6.
9367.551:013c:0214:warn:seh:virtual_unwind backtrace: 000000014497431A: L"OnimushaWotS.exe" + 000000000497431A.
9367.551:013c:0214:warn:seh:virtual_unwind backtrace: 000000014007109D: L"OnimushaWotS.exe" + 000000000007109D.
9367.551:013c:0214:warn:seh:virtual_unwind backtrace: 0000000144F89B33: L"OnimushaWotS.exe" + 0000000004F89B33.
9367.551:013c:0214:warn:seh:virtual_unwind backtrace: 0000000140B6E4C7: L"OnimushaWotS.exe" + 0000000000B6E4C7.
9367.551:013c:0214:warn:seh:virtual_unwind backtrace: 00006FFFFFEC1649: L"kernel32.dll" + 0000000000011649.
9367.551:013c:0214:warn:seh:virtual_unwind backtrace: 00006FFFFFF40E0F: L"ntdll.dll" + 0000000000010E0F.

The backtrace is only 7 game frames deep, so it does not look like runaway recursion.

Right after that the game starts its own CrashReport.exe (a .NET/WPF program), which fails under Wine with an unhandled 0xe0434352 exception in System.Diagnostics.PerformanceCounterLib.CounterExists, called from CrashReport.App.GetParentMainWindowTitle(). Because of that no crash dialog is shown and the game just disappears.

Before the crash the log also has 963 handled EXCEPTION_ACCESS_VIOLATION exceptions, all at the same address 0000000001F20C4F (outside the game module), about one every 1.5 seconds for the whole session. They do not look fatal, but I mention them in case they are related.

What I have ruled out

  • No kernel messages at crash time: no amdgpu reset, no ring timeout, no OOM, no MCE.
  • Temperatures normal at the moment of every crash (CPU 73-79 °C, GPU 54 °C, hotspot 70 °C).
  • RAM use about 11 of 32 GB.
  • Happens with CPU Curve Optimizer disabled and enabled, and with stock boost.
  • Happens with Proton Experimental and Proton 11.0-2.
  • Happens with and without: frame generation, FSR upscaling, FPS cap (164), V-Sync, MangoHud, gamemode.
  • Happens with and without the launch argument /WineDetectionEnabled:False.
  • kernel.split_lock_mitigate=0 is set.
  • Other games (Counter-Strike 2, Divinity: Original Sin 2) run for hours on the same system without problems.

Reproduction

  1. Launch options: PROTON_LOG=1 %command%
  2. Start the game, load a save and play normally (exploring and combat).
  3. After 7 to 30 minutes the game closes to the desktop.

Game settings: 2560x1440 borderless, DirectX 12, custom preset (mostly High), ray tracing off, native resolution with TAA, FPS limit 164.

Steam system information 
Computer Information:
Manufacturer: ASRock
Model: B850I Lightning WiFi
Form Factor: Desktop
No Touch Input Detected
Processor Information:
CPU Vendor: AuthenticAMD
CPU Brand: AMD Ryzen 7 9800X3D 8-Core Processor
CPU Family: 0x1a
CPU Model: 0x44
CPU Stepping: 0x0
CPU Type: 0x0
Speed: 4700 MHz
16 logical processors
8 physical processors
Hyper-threading: Supported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Supported
SSE41: Supported
SSE42: Supported
AES: Supported
AVX: Supported
AVX2: Supported
AVX512F: Supported
AVX512PF: Unsupported
AVX512ER: Unsupported
AVX512CD: Supported
AVX512VNNI: Supported
SHA: Supported
CMPXCHG16B: Supported
LAHF/SAHF: Supported
PrefetchW: Unsupported
BMI1: Supported
BMI2: Supported
F16C: Supported
FMA: Supported
Operating System:
Arch Linux (64 bit)
Kernel Name: Linux
Kernel Version: 7.2.7-arch1-1
X Server Vendor: The X.Org Foundation
X Server Release: 12401013
X Window Manager: Hyprland :D
Steam Runtime Version: steam-runtime_1.0.20260714.251828
Client Information:
Version: 1788652215
Browser GPU Acceleration Status: Enabled
Browser Canvas: Enabled
Browser Canvas out-of-process rasterization: Enabled
Browser Direct Rendering Display Compositor: Disabled
Browser Compositing: Enabled
Browser Multiple Raster Threads: Enabled
Browser OpenGL: Enabled
Browser Rasterization: Enabled
Browser Raw Draw: Disabled
Browser Skia Graphite: Disabled
Browser Video Decode: Enabled
Browser Video Encode: Disabled
Browser Vulkan: Disabled
Browser WebGL: Enabled
Browser WebGL2: Enabled
Browser WebGPU: Disabled
Browser WebNN: Disabled
Video Card:
Driver: AMD AMD Radeon RX 9070 XT (radeonsi, gfx1201, ACO, DRM 3.64, 7.2.7-arch1-1)
Driver Version: 4.6 (Compatibility Profile) Mesa 26.2.3-arch1.2
OpenGL Version: 4.6
Desktop Color Depth: 24 bits per pixel
Monitor Refresh Rate: 164 Hz
VendorID: 0x1002
DeviceID: 0x13c0
Revision Not Detected
Number of Monitors: 2
Number of Logical Video Cards: 2
Primary Display Resolution: 2560 x 1440
Desktop Resolution: 4480 x 1440
Primary Display Size: 27.95" x 15.75" (32.05" diag), 71.0cm x 40.0cm (81.4cm diag)
Primary VRAM: 16384 MB
Sound card:
Audio device: USB Mixer
Memory:
RAM: 31189 Mb
VR Hardware:
VR Headset: None detected
No VR configuration with trackers detected
Most number of trackers in a session: 0
Miscellaneous:
UI Language: English
LANG: en_US.UTF-8
Total Hard Disk Space Available: 3703037 MB
Largest Free Hard Disk Block: 3047238 MB
Storage:
Number of SSDs: 1
SSD sizes: 4000G
Number of HDDs: 0
Number of removable drives: 0
BBoomF3 2026-10-02 github

Update: this turned out to be a hardware problem on my side, not a Proton or game bug. Sorry for the noise.

The crashes stopped after I disabled the EXPO memory profile in the BIOS (Corsair CMK32GX5M2E6000Z36, 2x16 GB DDR5-6000 CL36 on an ASRock B850I Lightning WiFi, BIOS 4.43). With the RAM at the JEDEC default (4800 MT/s):

  • Onimusha: Way of the Sword ran for 44 minutes with no crash (before: crashed in 5 of 6 sessions, after 7 to 29 minutes).
  • Monster Hunter Wilds (same engine) ran for 35 minutes with no crash (before: crashed after 15 to 19 minutes).
  • No fatal exceptions in the Proton log, and the game's CrashReport.exe never started.

So the EXCEPTION_STACK_OVERFLOW and the silent exits were most likely caused by memory errors at the EXPO setting. Other games (Counter-Strike 2, Divinity: Original Sin 2) did not show the problem, which is why I wrongly ruled out hardware in the report.

One thing from the report that may still be worth a look independently: when the game does crash, its CrashReport.exe (.NET/WPF) fails under Wine with an unhandled 0xe0434352 exception in System.Diagnostics.PerformanceCounterLib.CounterExists, so no crash dialog is shown.

Closing this issue.

Proton versions

Launch options

DLLs