Xid 8 system lockup under vulkan (dxvk), driver 440.44

The system will lock up reliably with Xid 8, channel 00000026 when running vulkan accelerated content, this error is reliably reproduced using The Witcher 3: Wild Hunt v1.32 running under Proton 4.11-11, using dxvk – notably in the Velen area after about 1-2 hours of gameplay on average, sometimes less (as fast as 20 minutes), sometimes more (up to 3 hours)

The system will not respond to CTRL+ALT+F1, or otherwise be meaningfully interacted with – even with SysRq+R – I hypothesize it drops to tty just fine but won’t output an appropriate video signal to indicate such due to the GPU entering a hung state (SysRq+S implies as much, since it flushes to a non-responsive tty, or a black screen – 50/50 really)

Jan 14 22:42:45 Valhalla kernel: NVRM: GPU at PCI:0000:1c:00: GPU-fed4696b-9f6c-70db-2f56-dbd8040928b4
Jan 14 22:42:45 Valhalla kernel: NVRM: GPU Board Serial Number: 
Jan 14 22:42:45 Valhalla kernel: NVRM: Xid (PCI:0000:1c:00): 8, pid=704, Channel 00000026

nvidia-bug-report.log.gz (253 KB)