DosReadMailslot Reads Incorrect Data Under Stress (111328)






This article was previously published under Q111328

SYMPTOMS

An application can fail because DosReadMailslot sometimes returns a message that was not addressed to it. Generally this occurs when mailslot traffic is heavy.

CAUSE

The code used when writing mailslot data to a local mailslot is not being marked as busy early enough in the routine to keep other mailslot datagrams from affecting the data.

RESOLUTION

A fix for the LAN Manager MS-DOS redirector corrects this problem and is available as CSD00.079.

STATUS

Microsoft has confirmed this to be a problem in LAN Manager version 2.2. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Modification Type: Major Last Reviewed: 7/30/2001
Keywords: KB111328