Microsoft KB Archive/250562

= Error: Access Violation in RemoveEntryList Function of TN3270 Server =

Article ID: 250562

Article Last Modified on 2/11/2004

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APPLIES TO


 * Microsoft SNA Server 4.0
 * Microsoft SNA Server 4.0 Service Pack 1
 * Microsoft SNA Server 4.0 Service Pack 2

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This article was previously published under Q250562



SYMPTOMS
An access violation (AV) occurs in the TN3270 RemoveEntryList function when a computer starts and the TN3270 Server Service is set to "On Server Startup" from the Services icon in Control Panel. A Dr.Watson log is generated when this access violation occurs similar to the following: Application exception occurred: App: exe\tn3servr.dbg When:  Exception number: c0000005 (access violation)

function: RemoveEntryList 672258e0 8b4c2404        mov     ecx,[esp+0x4]          ss:0e0ce29f=???????? 672258e4 8b01            mov     eax,[ecx]              ds:0c8602e4=00000000 672258e6 8b4904          mov     ecx,[ecx+0x4]          ds:0e06ecea=???????? 672258e9 8901            mov     [ecx],eax              ds:0c8602e4=00000000 FAULT ->672258eb 894804          mov     [eax+0x4],ecx          ds:0180ea06=???????? 672258ee c20400          ret     0x4



CAUSE
The DMOD (SNADMOD.exe) does not always cancel a pending delayed close timer when it reuses a connection.



RESOLUTION
To resolve this problem, upgrade to the latest service pack.



STATUS
Microsoft has confirmed this to be a problem in SNA Server version 4.0, 4.0 SP1, and 4.0 SP2. This problem was first corrected in Microsoft SNA Server 4.0 U.S. Service Pack 3.

For information on obtaining the service pack, query on the following word in the Microsoft Knowledge Base (without the spaces):   S E R V P A C K

Additional query words: prodsna

Keywords: KB250562

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