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2604085 - ASE server crashes after infected with signal 11 in mempmctrl_free - SAP ASE

Symptom

  • ASE error log reports a signal 11 at address mempmctrl_free:

Current process (0x488b03c6) infected with signal 11 (SIGSEGV)
Address 0x0x0000000001d258d8 (mempmctrl_free+0x158), siginfo (code, address) = (1, 0x0x0000023330a80078)

  • With a stack trace including functions:
    • mempmctrl_free
    • mem_freepages
    • free_mempage

  • As the spid affected is holding a spinlock, ASE will crash as result:
    Spinlock Resource->rpmctrl_spin at address 'x' owned by 'y'
  • (Many) more signal 11 / timeslice error may be seen before ASE shuts down

Read more...

Environment

SAP Adaptive Server Enterprise (ASE) - 16.0

Product

SAP Adaptive Server Enterprise 16.0

Keywords

KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem

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