Random Stop 0x50 Errors on Cirrus Video Adapters
Article ID: 188303
Article Last Modified on 11/1/2006
APPLIES TO
- Microsoft Windows NT Server 4.0, Terminal Server Edition
- Microsoft Windows NT Workstation 4.0 Developer Edition
- Microsoft Windows NT Server 4.0 Standard Edition
- Microsoft Windows NT Server 4.0 Enterprise Edition
This article was previously published under Q188303
SYMPTOMS
On systems with some Cirrus-compatible video adapters, Windows NT may
randomly and infrequently stop responding (hang) and report the following
blue screen error message:
STOP 0x00000050 error
PAGE_FAULT_IN_NONPAGED_AREA.
CAUSE
The GDI in Windows NT requires 8-byte alignment on the bitmaps it is
expected to draw on. Cirrus's driver provides 4-byte alignment instead of
8. This may cause problems on some video adapters where output requests are
delivered to GDI.
RESOLUTION
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the
Microsoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack
STATUS
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.
Additional query words: cirus display driver Video capture
Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe KB188303