Error_DMA_PageFault

[cheng-cheng.wang2]

Hi,

I’m investigating GPU crashes by integrated Nsight Aftermath to our project.

We have implemented PFN_GFSDK_Aftermath_ShaderDebugInfoCb to dump the shader debug info when the GPU was executing and triggered a TDR. Yeah, it may work sometimes.

However, sometimes it only returns a Error_DMA_PageFault and failed to translate the virtual address. I’ve been double checked, the buffer in-between is not a reserved buffer means it is not using a virtual address which makes me very confused.

What is the exactly meaning of Error_DMA_PageFault, and is there any other way to get more informations about this fault.

[AYan]

Hi cheng-cheng,

Error_DMA_PageFault corresponds to “D3DKMT_DEVICEEXECUTION_ERROR_DMAPAGEFAULT” being reported by Windows graphics subsystem for the device. There can be many reasons for that, the most common is accessing a buffer that is not bound.

Maybe you can check more info in ‘Crash Info’ page?

Thanks
An