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2694998 - Signal 11 at address pipe_read crashing ASE due to dbt_pipemgrspin spinlock - SAP ASE


  • ASE errorlog reports a timeslice or signal 11 at address pipe_read/ pipe_write causing either:
    • ASE server to crash
    • Termination of a single spid/process
  • Error log will contain any or all of the following errors:
    • Current process (0x7f503fb) infected with signal 11 (SIGSEGV)
      Address 0x0000000100637860 (pipe_read+0x198)

      Spinlock Dbtable->dbt_pipemgrspin at address ....
    • Followed by stacktrace including functions:
    • Error: 9566, Severity: 20, State: 1
      Worker Process internal plan copy error for EVAL E_LPAD.
      Consider running this query serially by setting the session parameter 'parallel_degree' to 1.
      Please contact SAP Technical Support.
    • Thread (spid=1234) initiating parallel primary error processing.
      Followed by (many) stacktraces including function copy__eop_eval_list 
    • Current process (0x5f0030) infected with signal 11 (SIGSEGV)
      0x000000010210f82c (pipe_write+0x130)
    • See attachment Stack_Example.txt for un-sanitized errorlog



  • SAP Adaptive Server Enterprise (ASE) 16.0 for Business Suite
  • SAP Adaptive Server Enterprise (ASE) 16.0


SAP Adaptive Server Enterprise 16.0 ; SAP ERP 6.0


spinlocks, parallel, pipe_read, pipe_write, dbt_pipemgrspin, unptn_pllscan, CR816694, 816694, 820290, CR820290, CR826833 , KBA , BC-DB-SYB , Business Suite on Adaptive Server Enterprise , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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