SLI Application Fails with LUA_DATA_SEG_LENGTH_ERROR          [sna]
ID: Q195167    CREATED: 02-NOV-1998   MODIFIED: 06-JAN-1999
WINDOWS:2.11,2.11SP1,2.11SP2,3.0,3.0SP1,3.0SP2,3.0SP3,4.0,4.0SP1
WINDOWS

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The information in this article applies to:

 - Microsoft SNA Server, versions 3.0, 3.0 SP1, 3.0 SP2, 3.0 SP3,
   4.0, and 4.0 SP1
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SYMPTOMS
========

SNA applications using the LUA SLI (Session Level Interface) API may
randomly fail, and require that SNA Server be stopped and restarted before
the application can recover.

When the problem occurs, an SLI_SEND verb will fail with a primary return
of LUA_PARAMETER_CHECK, and a secondary return code of
LUA_DATA_SEG_LENGTH_ERROR, even though the data length is correct.

CAUSE
=====

A problem in the SNA Server SLI library when calculating the extent of an
array caused a validity check for the data segment length parameter of an
SLI_SEND verb to return false.