SNA Manager (Snaexp.exe) Trapping in CSnaOleObj::CreateObject or CTN3270AddressItem::`RTTI Complete Object Locator' (276199)

SYMPTOMS

If you open a large pool of logical units (LUs) in SNA Server Manager, one of the following traps may result:

function: CTN3270AddressItem::`RTTI Complete Object Locator'
FAULT ->677048b0 0000             add     [eax],al                     ds:677026e4=ac
        677048b2 0000             add     [eax],al                     ds:677026e4=ac
        677048b4 0400             add     al,0x0
        677048b6 0000             add     [eax],al                     ds:677026e4=ac
        677048b8 0000             add     [eax],al                     ds:677026e4=ac
        677048ba 0000             add     [eax],al                     ds:677026e4=ac
        677048bc e8f67267f8       call    5fd7bbb7
        677048c1 48               dec     eax
        677048c2 7067         jo CTN5250AddressItem::`RTTI Complete Object Locator'+0xb (6770492b)
        677048c4 0000             add     [eax],al                     ds:677026e4=ac
        677048c6 0000             add     [eax],al                     ds:677026e4=ac

function: CSnaOleObj::CreateObject
        01012fb1 8b43e4           mov     eax,[ebx-0x1c]         ds:0117f8de=????????
        01012fb4 8b0cb0           mov     ecx,[eax+esi*4]        ds:0000000a=????????
        01012fb7 8b4120           mov     eax,[ecx+0x20]         ds:0117f1c6=????????
        01012fba 85c0             test    eax,eax
        01012fbc 0f84e5000000     je      CSnaOleObj::CreateObject+0x157 (010130a7)
        01012fc2 8b7c243c         mov     edi,[esp+0x3c]         ss:00f8e05b=????????
        01012fc6 8d442410         lea     eax,[esp+0x10]         ss:00f8e05b=????????
        01012fca 50               push    eax
        01012fcb 57               push    edi
        01012fcc 8b17             mov     edx,[edi]              ds:670438dc=0000000c
FAULT ->01012fce ff5240           call    dword ptr [edx+0x40]   ds:00f1ea12=????????
        01012fd1 85c0             test    eax,eax
        01012fd3 8d73d8           lea     esi,[ebx-0x28]         ds:0117f8de=????????
        01012fd6 7c1c             jl      CSnaOleObj::CreateObject+0xa4 (01012ff4)
        01012fd8 8b4c2410         mov     ecx,[esp+0x10]         ss:00f8e05b=????????
        01012fdc 6a01             push    0x1
        01012fde 51               push    ecx
        01012fdf 8bce             mov     ecx,esi
        01012fe1 e88af2ffff       call    CSnaOleObj::GetObjFromInterface (01012270)
        01012fe6 8be8             mov     ebp,eax
        01012fe8 8b442410         mov     eax,[esp+0x10]         ss:00f8e05b=????????
        01012fec 50               push    eax
				

At other times, SNA Manager may not cause a Dr. Watson error, but may appear to stop responding (hang), or the SNA services may appear to go offline and then recover (in the SNA Manager view--the services do not actually shut down).