How To Fix BS_CT_MESSAGES038 - SHM instance &1: freed

SAP Error Message - Details

• Message type: E = Error

• Message class: BS_CT_MESSAGES - Messages for Context According

• Message number: 038

• Message text: SHM instance &1: freed

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message BS_CT_MESSAGES038 - SHM instance &1: freed ?

  The SAP error message BS_CT_MESSAGES038 indicates that a Shared Memory (SHM) instance has been freed. This message typically arises in the context of SAP's memory management, particularly when dealing with shared memory instances that are used for performance optimization and inter-process communication.
  Cause:
  The error can occur due to several reasons:
  
  Memory Management Issues: The SHM instance may have been freed due to improper memory management, such as a process terminating unexpectedly or not releasing memory correctly.
  Configuration Errors: Incorrect configuration settings for shared memory in the SAP system can lead to instances being freed prematurely.
  Resource Limits: The system may have reached its limits for shared memory allocation, causing the instance to be freed.
  Application Logic: The application logic may have a bug that leads to the premature freeing of the SHM instance.
  
  Solution:
  To resolve this issue, you can take the following steps:
  
  
  Check System Logs: Review the system logs (transaction SM21) for any related errors or warnings that occurred around the same time as the error message. This can provide insights into what might have caused the SHM instance to be freed.
  
  
  Monitor Memory Usage: Use transaction ST02 (Tune Summary) to monitor the memory usage of the system. Look for any signs of memory pressure or issues with shared memory allocation.
  
  
  Review Configuration: Check the configuration settings for shared memory in the SAP system. Ensure that the parameters related to shared memory are set correctly. You can use transaction RZ10 to review and adjust profile parameters.
  
  
  Update SAP Kernel: Ensure that you are using the latest version of the SAP kernel. Sometimes, bugs in the kernel can lead to memory management issues, and updates may contain fixes.
  
  
  Check for Notes: Search the SAP Support Portal for any relevant SAP Notes that might address this specific error message. There may be known issues or patches available.
  
  
  Restart the Instance: If the issue persists and is affecting system performance, consider restarting the affected instance or the entire SAP system as a temporary workaround.
  
  
  Contact SAP Support: If you are unable to resolve the issue with the above steps, consider reaching out to SAP Support for further assistance. Provide them with detailed logs and information about the circumstances under which the error occurred.
  
  
  Related Information:
  
  Shared Memory Management: Understanding how SAP manages shared memory can help in diagnosing issues. Shared memory is used for storing data that can be accessed by multiple processes, improving performance.
  SAP Memory Management: Familiarize yourself with SAP's memory management concepts, including heap memory, shared memory, and paging.
  Performance Tuning: Regularly monitor and tune the performance of your SAP system to prevent memory-related issues.
  
  By following these steps, you should be able to diagnose and potentially resolve the issue related to the BS_CT_MESSAGES038 error message.