We recently saw this error on our UAT environment with the MQSC adapter.
Event Type: Error
Event Source: BizTalk Server 2006
Event Category: BizTalk Server 2006
Event ID: 5754
Time: 8:52:07 AM
A message sent to adapter "MQSC" on send port is suspended.
Error details: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
I have found a couple of KB articles that dont directly relate to the MQSC adapter but apply to the OS we are using, i.e. Windows 2003 SP2. Has anyone else encountered this error?
Also, the instance is suspended and resumable, but just resuming it does not clear this issue. We had to terminate the suspended isntance and resend the messages.
Just a few details about the environment:
1. OS: Windows server 2003 SP2 64 bit
2. BizTalk Server 2006 R2
3. Clustered Node, with MQ host instance active on one node