Error
Error Code:
1807
SAP S/4HANA Error 1807: Shared Memory Access Failure
Description
Error 1807, 'ERR_SHM_UNKNOWN', indicates an unspecific issue related to the system's shared memory. This error typically occurs when SAP S/4HANA processes are unable to allocate, access, or manage shared memory segments required for inter-process communication and data storage, often leading to system instability or crashes.
Error Message
ERR_SHM_UNKNOWN
Known Causes
4 known causesInsufficient System Resources
The system hosting SAP S/4HANA may lack adequate physical RAM or swap space, preventing processes from allocating necessary shared memory segments.
SAP Parameter Misconfiguration
Incorrectly configured SAP profile parameters related to shared memory (e.g., `shm_max_size`, `ipc/shm_psize`) can lead to allocation failures.
Operating System Kernel Limits
The underlying operating system's kernel parameters (e.g., `kernel.shmmax`, `kernel.shmall` on Linux) might be set too low, restricting the total shared memory available.
Underlying Software Corruption
Rare cases may involve corruption within SAP binaries or the operating system, leading to unexpected shared memory access issues.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service