SNA Client for Windows NT Hangs When Receiving PID > '0x8000' (196239)
The information in this article applies to:
- Microsoft SNA Server 2.1
- Microsoft SNA Server 2.11
- Microsoft SNA Server 2.11 SP1
- Microsoft SNA Server 2.11 SP2
- Microsoft SNA Server 3.0
- Microsoft SNA Server 3.0 SP1
- Microsoft SNA Server 3.0 SP2
- Microsoft SNA Server 3.0 SP3
- Microsoft SNA Server 4.0
- Microsoft SNA Server 4.0 SP1
This article was previously published under Q196239 SYMPTOMS
An SNA Client for Windows NT hangs when it gets an assigned Process ID
(PID) larger than '0x8000'. In addition, an event similar to the following
may be logged in the Windows NT Application Event Log:
Event ID: 556
Description: A system error occurred while making a pipe connection,
rc=<value>
CAUSE
The SNA Server client for Windows NT does not correctly handle 32-bit PIDs.
AFter the system starts using PIDs greater than '0x8000', this problem will
occur.
RESOLUTIONTo resolve this problem, obtain the latest service pack for SNA Server version 3.0. For additional information, click the following article number to view the article in the
Microsoft Knowledge Base:
184307 How to Obtain the Latest SNA Server Version 3.0 Service Pack
WORKAROUND
Restarting the server will reset the PID values below 8000h, which fixes
the problem until the system starts to use PID values >=8000h again.
STATUS
Microsoft has confirmed this to be a problem in SNA Server versions 2.1,
2.11, 2.11 SP1, 2.11 SP2, 3.0, 3.0 SP1, 3.0 SP2, 3.0 SP3, 4.0, and 4.0 SP1.
This problem was first corrected in SNA Server 3.0 Service Pack 4.MORE INFORMATION
Below is an excerpt of the internal trace captured on a SNA Client for
Windows NT that shows a PID of '0xFFFF8D76';
New RAM pipe message, srcl=0, destl=2
Next ltab entry to look from 19
LTAB entry 19 allocated, ltab[i]->inuse = 513
New RAM pipe, his l 1 mapped to ltab index 19, addr 117F1008
from BK02936 running SERVERCO on
SSEBASTIANAG2
Client App does not use Extended L-values
pSPd->Pid = FFFF8D76, pSPd->pProcessHdr = 00000180
LPd 0 is free
First init
Saved PID = FFFF8D76
Failed to open to remote process FFFF8D76, rc = 00000057 --> RAM
Pipe could not be opened
ltabptr 117F1008 Secstatus = 00000002
Logging 2 chars, level = 12, msgnum = 556
pLog at 001AC3B8, pTokenUser at 001AC3D4
Signaling the Logging thread
CloseDmodConnection, L table entry 19, CliCount 65492
| Modification Type: | Minor | Last Reviewed: | 7/13/2004 |
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| Keywords: | kbbug kbfix KB196239 |
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