XCON: MAD Consumes 100% CPU While Recalculating Routing

ID: Q196664

The information in this article applies to:

Microsoft Exchange Server, version 5.5

SYMPTOMS

An Administrator attempts to recalculate routing, but the action never finishes. The Mad.exe process is seen to be using approximately 100% of the CPU.

CAUSE

A logic error in the code which generates an ELSE leg of the Gateway Routing Table (GWART) causes the recalculation to loop.

RESOLUTION

To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For additional information, please see the following article in the Microsoft Knowledge Base:

Q191014 XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack

The English version of this fix should have the following file attributes or later:


Component: Message Transfer Agent (MTA)

   File Name      Version
   -------------------------
   Dbserver.sch   5.5.2510.0
   Dcprods.cat    5.5.2510.0
   Ems_rid.dll    5.5.2510.0
   Emsmta.exe     5.5.2510.0
   Info4log.cfg   5.5.2510.0
   Infoblog.cfg   5.5.2510.0
   Infodlog.cfg   5.5.2510.0
   Infollog.cfg   5.5.2510.0
   Infotlog.cfg   5.5.2510.0
   Mtacheck.exe   5.5.2510.0
   Mtamsg.dll     5.5.2510.0
   P2.xv2         5.5.2510.0
   X400om.dll     5.5.2510.0
   X400omv1.dll   5.5.2510.0

STATUS

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 3.

Additional query words: RID GWART

Keywords : exc55 EXC55SP3Fix
Version : WinNT:5.5
Platform : winnt
Issue type : kbbug