Article ID: 162605
Article Last Modified on 10/23/2003
APPLIES TO
- Microsoft SNA Server 2.11 Service Pack 1, when used with:
This article was previously published under Q162605
SYMPTOMS
If an LUA SLI application issues an SLI_RECEIVE request and passes a data
buffer that is smaller than the size of the chain being received, the SLI
interface returns a primary_rc of LUA_UNSUCCESSFUL and secondary_rc =
LUA_DATA_TRUNCATED.
The SNA Server 2.11 32-bit Windows LUA SLI interface was enhanced in
Service Pack 1 (SP1), so an application does not have to preallocate the
full buffer size when receiving data using the SLI_RECEIVE API.
However, even with this enhancement enabled, the SLI interface might not
return a primary_rc of LUA_OK and a secondary_rc of LUA_DATA_INCOMPLETE
(0x00000060) under certain conditions.
CAUSE
When the receive buffer for the SLI_RECEIVE is filled up with data the SLI
library should return the SLI_RECEIVE verb with a primary_rc of LUA_OK and
a secondary_rc of LUA_DATA_INCOMPLETE (0x00000060). However, there are
certain conditions in which the SLI interfaces carries on receiving data,
even if the passed buffer has been filled up until it received the entire
chain of Request Units.
Because the passed data buffer is smaller than the entire chain of RUs
being received, the SLI interface returns the SLI_RECEIVE verb with a
primary_rc of LUA_UNSUCCESSFUL and a secondary_rc = LUA_DATA_TRUNCATED.
RESOLUTION
An update to SNA Server 2.11 SP1 corrects this problem. The updated modules
are:
Acssli.dll for OS/2
Winsli.dll for Windows 3.x
Winsli32.dll for Windows 95
Winsli32.dll for Windows NT
REFERENCES
For additional information on the enhancement that was made in SNA Server
SP1, please see the following article in the Microsoft Knowledge Base:
148163 SLI Interface Enhanced for Receiving Large Chains
STATUS
Microsoft has confirmed this to be a problem in SNA Server version 2.11
SP1.
A supported fix is now available for 2.11 SP1 , but has not been fully
regression-tested and should be applied only to systems experiencing this
specific problem. Unless you are severely impacted by this specific
problem, Microsoft recommends that you wait for the next Service Pack that
contains this fix. Contact Microsoft Technical Support for more
information.
Additional query words: prodsna VSP1 LUA SLI_OPEN SLI_RECEIVE LUA_DATA_TRUNCATED
Keywords: kbnetwork KB162605