Examples described herein generally relate to reporting faults in a graphics processing unit (GPU). A list of rendering instructions for causing the GPU to render graphics can be captured, and occurrence of a fault in executing the list of rendering instructions can be detected. A portion of the list of rendering instructions can be executed, in isolation from a second portion of the list of rendering instructions, based on detecting occurrence of the fault to identify the fault in the portion of the list of rendering instructions or the second portion of the list of rendering instructions. The portion of the list of rendering instructions or the second portion of the list of rendering instructions can be indicated as causing the fault.