Trap Occurs in the snaservr!s1pnsuns Function (819764)

SYMPTOMS

When SNA Server 4.0 is running, a trap may occur in the snaservr!s1pnsuns function. A Dr. Watson log file may show data that is similar to the following:

State Dump for Thread Id 0x6bd

eax=01190000 ebx=00000030 ecx=00000000 edx=00000000 esi=01d3d864 edi=00000079
eip=010549cf esp=00bafe64 ebp=01d3d864 iopl=0         nv up ei pl zr na po nc
cs=001b  ss=0023  ds=0023  es=0023  fs=0038  gs=0000             efl=00000246

function: s1pnsuns
        010549a0 6683ff77         cmp     di,0x77
        010549a4 0f84e8020000     je      s1pnsuns+0x9d2 (01054c92)
        010549aa 6683ff78         cmp     di,0x78
        010549ae 0f84de020000     je      s1pnsuns+0x9d2 (01054c92)
        010549b4 6683ff73         cmp     di,0x73
        010549b8 0f84d4020000     je      s1pnsuns+0x9d2 (01054c92)
        010549be 8b442424         mov     eax,[esp+0x24]         ss:01e0e86b=????????
        010549c2 25ffff0000       and     eax,0xffff
        010549c7 8d1440           lea     edx,[eax+eax*2]        ds:01190000=01110100
        010549ca a1d0691801       mov     eax,[sct (011869d0)]   ds:011869d0=01190000
FAULT ->010549cf 8b4cd0ec         mov     ecx,[eax+edx*8-0x14]   ds:0125ea07=00000000
        010549d3 894c241c         mov     [esp+0x1c],ecx         ss:01e0e86b=????????
        010549d7 8b54d0f0         mov     edx,[eax+edx*8-0x10]   ds:0125ea07=00000000
        010549db 8d44241c         lea     eax,[esp+0x1c]         ss:01e0e86b=????????
        010549df 50               push    eax
        010549e0 56               push    esi
        010549e1 89542428         mov     [esp+0x28],edx         ss:01e0e86b=????????
        010549e5 e85685ffff       call    s1pnsdpn (0104cf40)
        010549ea 6683ff76         cmp     di,0x76
        010549ee 7548             jnz     s1pnsuns+0x778 (01054a38)
        010549f0 8b5c2438         mov     ebx,[esp+0x38]         ss:01e0e86b=????????
        010549f4 0fbf4b0a         movsx   ecx,word ptr [ebx+0xa]     ds:0125ea37=0000

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

FramePtr ReturnAd Param#1  Param#2  Param#3  Param#4  Function Name
01d3d864 00100001 11000b00 00000000 00000000 9b600004 snaservr!s1pnsuns  (FPO: [EBP 0x00000000] [1,59,4])

CAUSE

The trap occurs when the SNA Server service (Snaservr.exe) receives a Close(SSCP) request for a session control block that is being used by a SSCP-PU session. The SNA Server service then issues a NOTIFY message on this session. The mainframe rejects the NOTIFY message with an 0x0826 message, and the trap occurs while the SNA Server service tries to build a CSI status message to send to the SNA Manager.

RESOLUTION

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next SNA Server 4.0 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

   Date         Time   Version       Size  File name
   ----------------------------------------------------
   16-May-2003  11:35  4.0.0.607  468,864  Snaservr.exe
   16-May-2003  11:35  4.0.0.607  936,368  Trcservr.exe

Note Because of file dependencies, the most recent fix that contains these files may also contain additional files.

Trap Occurs in the snaservr!s1pnsuns Function (819764)

SYMPTOMS

CAUSE

RESOLUTION

STATUS