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2487437 - cannot start with error in os_create_region, Shared Memory Issue, on Linux, without using HugePages - SAP ASE CE


  • While starting ASE on Linux without turning ON HugePages for large shared memory allocation, ASE might fail to start with an error message,
  • Attempt to attach shared memory (id 0) at address 0x..., with flags 0 failed
  • Cannot attach shared memory : error = 22 (Invalid argument)
  • os_create_region: shmat(0): Invalid argument
  • kbcreate: couldn't create kernel region.
  • kistartup: could not create shared memory



  • SAP Adaptive Server Enterprise (ASE) 15.7
  • Linux x86_64


Sybase Adaptive Server Enterprise Cluster Edition 15.7


os_create_region, cannot allocate, kbcreate, kistartup, HugePages , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem

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