Thanh T Hoang

US Patent:

58812210, Mar 9, 1999

Filed:

Dec 31, 1996

Appl. No.:

8/777663

Inventors:

Thanh V. Hoang - Sugar Land TX
Paul Fontenot - Houston TX

Assignee:

Compaq Computer Corporation - Houston TX

International Classification:

G06F 1125

US Classification:

39518318

Abstract:

An apparatus and method are disclosed for testing memory and display adapter components of a multi-tasking computer system. The apparatus obtains a memory block and sends a request to a memory virtual device driver (VxD) to reserve, commit and lock the memory block to a physical memory. In requesting the memory block, the apparatus computes the number of virtual memory pages spanned by the request, reserves the pages of virtual memory, commits the virtual memory to a physical memory, and locks the virtual memory to the physical memory. The apparatus then obtains a physical address for the physical memory and returns the physical address for testing. Next, the apparatus tests the memory block using a number of memory test procedures. After the testing completes, the apparatus decommits and unlocks the physical memory before it traverses to the next entry of the chain. This process is repeated until all entries in the virtual memory chain have been tested.

Address:

13714 Stampford Dr, Houston, TX 77077

VIN:

5LMFL27597LJ16586

Make:

LINCOLN

Model:

NAVIGATOR L

Year:

2007

Address:

10819 Corona Ln, Houston, TX 77072

VIN:

5TEJU62N07Z349402

Make:

TOYOTA

Model:

TACOMA

Year:

2007