A device that supports VK_EXT_device_fault reports, on the first
VK_ERROR_DEVICE_LOST a check sees, the fault description, the faulting
addresses (invalid reads and writes, or the instruction pointers of waves
still running when the device hung) and the vendor fault codes.
APS5_GPU_CHECKPOINTS=1 records a VK_NV_device_diagnostic_checkpoints
marker with the program address before each guest dispatch and prints the
last markers the GPU reached, which names the dispatch that hung. Without
either extension nothing changes.
Test: agc_device_fault drives the report through mock
vkGetDeviceFaultInfoEXT and vkGetQueueCheckpointDataNV entry points.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Co-authored-by: overlordxrz-source <overlordxrz-source@users.noreply.github.com>
