XADM: Store on Alpha Fails When POP3 User Retrieves Attachment

• Microsoft Exchange Server versions 5.0, 5.5

SYMPTOMS

This problem occurs when you run Microsoft Exchange Server on an Alpha platform. When a POP3 user tries to retrieve message with a postscript attachment, the Information Store may cause a Dr. Watson.

This problem was not observed on the Intel platform.

CAUSE

The problem is that the a boundary condition is not handled within the store. The input text to be encoded contains the H"09 7B 0D 09.." sequence, which fills up the current output buffer, leaving no room for the terminating CRLF. This causes the 5.0 SP1 Store.exe to Dr. Watson.

RESOLUTION

To resolve this problem, obtain the following fix or wait for the next Microsoft Exchange Server service pack.

The fix makes sure that when writing to the output buffer, there is enough space for the soft wrap character (the equal sign) and the terminating CRLF.

STATUS

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.0. This problem has been corrected in the latest U.S. Service Pack for Microsoft Exchange Server version 5.0. 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

MORE INFORMATION

When the Information Store fails with this problem, the following call stack can be found in the USER.DMP:

   FramePtr  RetAddr   Param1   Param2   Param3   Function Name
   0ac8f990  67162668  00000001 013000f8 00000000
   NTDLL!RtlAllocateHeap+0x78c
   0ac8fa30  00413ad8  00000001 013000f8 01300798
   EXCHMEM!ExchMHeapAlloc+0x5c
   0ac8fa50  005780f4  00000001 013000f8 01300798 STORE!operator new+0xc
   0ac8fa60  004f48d4  00000001 013000f8 01300798 STORE!PTA::EcDupPta+0x28
   0ac8fa90  00503ce0  00000001 013000f8 01300798
   STORE!OMSG::EcConfig+0x1878
   0ac8fbb0  005104cc  00000001 013000f8 01300798 STORE!EcCreateOMSG+0x234
   0ac8fc20  006293f4  00000001 013000f8 01300798
   STORE!EcOpenMessageOp+0x1b0
   0ac8fc90  006291e4  00000001 013000f8 01300798
   STORE!POP3CON::EcRenderMessage+0x188({...})
   0ac8fdd0  00625be8  00000001 013000f8 01300798
   STORE!POP3CON::EcSendMessage+0x68
   0ac8fe00  00627af8  00000001 013000f8 01300798
   STORE!POP3CON::EcRetr+0xac
   0ac8fe30  0062804c  00000001 013000f8 01300798
   STORE!POP3CON::OnTransactionCmd+0x3cc
   0ac8fe70  67087d78  00000001 013000f8 01300798
   STORE!POP3CON::CbCommand+0x200
   0ac8feb0  67088098  00000001 013000f8 01300798
   NETIF!IFCONN::ProcessReceiveBuffer+0x2bc
   0ac8ff00  6708898c  00000001 013000f8 01300798
   NETIF!IFCONN::OnReceiveComplete+0x29c
   0ac8ff50  684041d4  00000001 00040000 013000f8
   NETIF!NetIfCompletionRoutine+0x150
   0ac8ff70  684041d8  00000001 00040000 013000f8 0x684041d8