Access Violation in Mngcli.exe When You Close Server Manager

The information in this article applies to:

• Microsoft SNA Server for Windows NT, version 3.0, 3.0 Service Pack 1

SYMPTOMS

After you start SNA Server Manager, if you close Server Manager before the domain is fully opened (that is, while the hourglass is displaying before the configuration information appears), an access violation can occur in Mngcli.exe. An entry in <Ntroot>\Drwtsn32.log will be created as follows:

   Application exception occurred:
      App: mngcli.dbg (<process ID>)
      Exception number: c0000005 (access violation)

   [...]

   function: EnterCriticalSection

   FAULT ->77f4704a f0ff4204    lock   inc dword ptr [edx+0x4]
   ds:0068e923=????????

CAUSE

Server Manager attempts to close the domain that was already closed.

RESOLUTION

To work around this problem:

   Do not close Server Manager until the domain has been opened and the
   configuration information is displayed.

STATUS

Microsoft has confirmed this to be a problem in SNA Server version 3.0 and 3.0 Service Pack 1. This problem was corrected in the latest SNA Server version 3.0 U.S. Service Pack. For information on obtaining this Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

   S E R V P A C K

MORE INFORMATION

When this problem occurs, the stack back trace may look like this:

   *----> Stack Back Trace <----*

   FramePtr ReturnAd Param#1  Param#2  Param#3  Param#4  Function Name
   0111fd94 614812df 00000000 6149d3ec 6148dd0d 6149d3ec
   kernel32!EnterCriticalSection
   0111fda0 6148dd0d 6149d3ec 00000000 00000214 6149d36c snamanag!SyncRead
   0111fdc0 61490656 6149d3ec 0111fde6 614906f0 00000000 snamanag!EnumList
   0111fde4 0100df29 1f7fffff 002e1768 010071cb 1f7fffff
   snamanag!SNADomainUnlock
   0111fdf0 010071cb 1f7fffff 60210000 00000000 60983130
      mngcli!DoCloseDomain
   0111fe0c 01006dcc 002e14b0 00000040 00000003 010014f4
   mngcli!CDomainProxy::Close
   0111fe24 609843c1 0111fe44 0111fe8c 03d711ac 011203a0
   mngcli!CDomainProxy::OnNotifySetting
   0111fe50 60989887 011203a0 002e1660 77ea5848 6098126c
   mngbase!CManage::OtherProcTerminated
   0111fe8c 6098b220 0111fe9c 00000003 002e1440 00000002
   mngbase!CAttachSink::OnUnknownAction
   0111fea8 01009b15 602042b2 77f52f1c 0012febc 77fa1773
   mngbase!CNotifyQueue::Dispatch
   0111ffb8 77f46c2e 0012febc 602042b2 77f52f1c 0012febc
      mngcli!DoAgentProxy
   602042b2 000d8964 5e000000 5de58b5b ccccccc3 cccccccc
   kernel32!BaseThreadStart