DRIVER_VERIFIER_DMA_VIOLATION (0x000000E6)

What is DRIVER-VERIFIER-DMA-VIOLATION?

Stop code 0xE6 indicates a driver performed an illegal DMA (Direct Memory Access) operation. DMA allows hardware to access system memory directly without CPU involvement for performance. When Driver Verifier is enabled and catches a driver performing DMA to unmapped or invalid memory regions, it immediately crashes the system to prevent silent memory corruption.

Common Causes

• Buggy driver performing DMA to invalid address
• Driver not properly mapping DMA buffers
• Hardware with incorrect DMA capabilities

Step-by-Step Fix Guide

• 1
  Identify faulting driver via Driver Verifier log

  This BSOD only occurs when Driver Verifier is active — disable it with 'verifier /reset' to restore normal operation while finding the root cause.

• 2
  Update the hardware driver to latest version

  The specific violation type in the bugcheck parameters (param1) identifies whether it's a map failure, unmap failure, or buffer overflow.

• 3
  Contact hardware manufacturer if driver bug confirmed

Commands & Diagnostics