WDDM Bit Flip - Invalid Param

  • Article

Note  This content applies to the Windows Logo Kit (WLK). For the latest information using the new Windows Hardware Certification Kit (HCK), see Windows HCK User's Guide on the Windows Hardware Dev Center.

Type: Automated Test

Overview

WDDM Bit Flip - Invalid Param is an invalid parameter stability test that verifies that kernel-mode display drivers correctly validate command buffers and private driver data that is passed from user-mode.

Details

WDDM Bit Flip - Invalid Param is a kernel-mode video driver stability test. It runs in the layer between the user-mode display driver and the kernel-mode display driver. The test intercepts calls from user mode to kernel mode. It then modifies the data associated with these calls. Kernel-mode display drivers must be robust enough to handle invalid parameters coming from any user-mode module without crashing or hanging.

System Restart Required: No

Supported operating systems for Logo or Signature testing:

  • Windows 7

  • Windows Server 2008 R2

  • Windows Vista

Requirements

Software Requirements

The test tool requires the following software:

  • Supported operating system (see list above).

  • Software components included with the device that is being tested.

Hardware Requirements

  • Device to be tested

  • Computer that meets the minimum software requirements

  • Windows keyboard

  • Two-button pointing device

  • Color display monitor capable of at least 1024 by 768 resolution, 32-bits per pixel, 60 Hz

  • Hard drive with a minimum of 20 GB available on partition C:

Processor

  • x86

  • x64

Test Assertions

GRFX-70 Display driver functions properly, and does not generate hangs or faults, under prolonged stress

Test Assertion GUID: 85ad15b6-d938-43d0-9142-094375997519

Windows Logo Program: GRAPHICS-0038 Display driver functions properly and does not generate hangs or faults under prolonged stress

 

 

Build date: 9/14/2012