STOP 0x00000050 in IPXSendFrame When Source Routing Info Exceeds 18 Bytes

SYMPTOMS

A STOP 0x0000000A or STOP 0x000000050 error message may be displayed after a call to MacLookupSourceRouting() when source routing information exceeds 18 bytes in length.

CAUSE

SourceRoutingBuffer is allocated as a UCHAR[18] on the stack. The 802.5 specification states that source routing can be up to 31 bytes in length. Originally, this length was 18 bytes to allow seven hops. Later, it was changed to 31 bytes. When MacLookupSourceRouting finds the media access control entry, it fills in the 31 bytes of Source Routing into the caller's parameters. This causes corruption in the stack.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows NT 4.0. For additional information, please see the following article in the Microsoft Knowledge Base:

Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack

http://www.microsoft.com/windows/servicepacks/

STATUS

Microsoft has confirmed this to be a problem in Windows NT 4.0. This problem was first corrected in Windows NT 4.0 Service Pack 5.

Additional query words:

Keywords          : kbbug4.00 kbfix4.00 nt4sp5fix 
Version           : 
Platform          : 
Issue type        : kbbug 

Last Reviewed: July 14, 1999