Cirrus Logic Video Causes Event ID 21 on MIPS Computers

• Microsoft Windows NT Workstation version 4.0
• Microsoft Windows NT Server version 4.0

SYMPTOMS

When running Windows NT Server or Windows NT Workstation 4.0 on MIPS-based computers, the following errors will be logged in the event viewer:

   ID: 21 Source: cirrus
   A conflict has been detected between two drivers which claimed two
   overlapping memory regions. Driver cirrus, with device
   <\Device\Video0.Translated>, claimed a memory range with starting
   address in data address 0x28 and 0x2c, and length in data address 0x30.

   ID: 21 Source: cirrus
   A conflict has been detected between two drivers which claimed two
   overlapping memory regions. Driver Physical Memory, with device
   <.Translated>, claimed a memory range with starting address in data
   address 0x28 and 0x2c, and length in data address 0x30.

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 4.0 We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

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