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2633304 - Signal 10 or 11 at ktMuxThreadScheduleOut with stack overflow crashing SAP ASE

Symptom

  • ASE hits a signal 10 or 11 at ktMuxThreadScheduleOut
  • And in handling the signal error ASE hits a stack overflow, causing the crash
  • Errorlog messages include:

Current process (0x68750f94) infected with signal 10 (SIGBUS)
Address 0x0000000081622934 (ktMuxThreadScheduleOut+0x44)

  • with stack trace(s) containing numerous stack / error handling functions and messages including:

ktMuxThreadScheduleOut
keipanic

Stack overflow detected: limit: 0x00000100334f09f0, guardpage: 0x00000100334f99f0, sp: 0x0000010033575e9c
*** Stack guardword corrupted.
*** Stack corrupted, server aborting.

pcstkwalk: exception stack underflow occurred.

ueshutdown: exiting


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Environment

  • SAP Adaptive Server Enterprise (ASE) 16.0. Only report on
    • SP01 PL02
    • Solaris 10
      • It is possible other versions and/or platforms are affected.

Product

SAP Adaptive Server Enterprise 16.0

Keywords

ktMuxThreadScheduleOut+0x44 , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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