Windows NT May Cache Data Even if Write-through Flag is Set

ID: Q153993

The information in this article applies to:

Microsoft Windows NT Workstation version 3.51
Microsoft Windows NT Server version 3.51

SYMPTOMS

When a file is created on a server using CreateFile Api with GENERIC_WRITE, FILE_SHARE_WRITE and FILE_FLAG_WRITE_THROUGH flags, the last few bytes may be cached which could result in data corruption.

CAUSE

There was a problem in Windows NT Cache Manager where a page was not getting written through.

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 3.51. This problem was corrected in the latest Windows NT 3.51 U.S. Service Pack. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

Additional query words: prodnt 3.51

Keywords : ntgeneral NTSrvWkst
Version : 3.51
Platform : WINDOWS
Issue type :