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WDDM Unmap Segment to DummyPage Check

  • Article

This automated test verifies that the AGP driver implements the guard page mappings for all AGP aperture segments properly.

The AGP driver implements the guard page mappings for all AGP aperture segments but IHV drivers have to implement the build paging buffer unmap segment to dummy page (DXGKARG_BUILDPAGINGBUFFER.UnmapApertureSegment.DummyPage) so that any corruption can be detected by dxgkrnl. Because on non-AGP systems we need IHV support the test has two modes, check the unmap segement to dummy page is supported and check for corruption.

Test details

   
Specifications
  • Device.Graphics.WDDM.DisplayRender.Base
Platforms
  • Windows 10, client editions (x86)
  • Windows 10, client editions (x64)
  • Windows Server 2016 (x64)
  • Windows 10, client editions (Arm64)
Supported Releases
  • Windows 10
  • Windows 10, version 1511
  • Windows 10, version 1607
  • Windows 10, version 1703
  • Windows 10, version 1709
  • Windows 10, version 1803
  • Windows 10, version 1809
  • Windows 10, version 1903
  • Next update to Windows 10
Expected run time (in minutes) 1
Category Compatibility
Timeout (in minutes) 60
Requires reboot false
Requires special configuration false
Type automatic

 

Additional documentation

Tests in this feature area might have additional documentation, including prerequisites, setup, and troubleshooting information, that can be found in the following topic(s):

Running the test

Before you run the test, complete the test setup as described in the test requirements: Graphic Adapter or Chipset Testing Prerequisites.

Troubleshooting

For generic troubleshooting of HLK test failures, see Troubleshooting Windows HLK Test Failures.

For troubleshooting information, see Troubleshooting Device.Graphics Testing.

More information

Command syntax

Command option Description

Unmappedaperture unmap

Runs the WDDM Unmap Segment to DummyPage Check test job.

Note

   For command line help for this test binary, type /h.

 

File list

File Location

Configdisplay.exe

<[testbinroot]>\nttest\windowstest\tools\

TDRWatch.exe

<[testbinroot]>\nttest\windowstest\graphics\

Unmappedaperture.exe

<[testbinroot]>\nttest\

 

Parameters

Parameter name Parameter description
LLU_NetAccessOnly LLU Name for net user
TDRArgs /get or /set