Solution : https://service.sap.com/sap/support/notes/981919 (SAP Service marketplace login required)
Summary :
This SAP Note addresses the issue in SM50 where a high number of work processes attributed to the SAPSYS user coincides with the request for semaphore 39 (EG semaphore). This situation may lead to a system failure signaled by signal 11, evidenced by a corrupted stack trace featuring functions like MmxIBlockRemove() and EgAlloc(). The root cause is identified as the overwriting of EG memory by the SE30, altering block length information and leading to erroneous data concatenation. The prescribed remedy involves applying a kernel patch specified as "ATRA patch collection 1/2007" with patch numbers for versions 700 and 640. The temporary solution advises against using SE30.
Key words :
invalid stack address encountered, performance analysis reason, work process files, atra patch collection 1/2007, relevant patch numbers, > stack trace, stack corrupted, work processes, kernel patch, patch text
Related Notes :
| 1634757 | Guided Self Service 'Performance Optimization' |
| 1594405 | ST-SER 2010_1: Maintenance of SAP Kernel issues |