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2617767 - Signal 11 in aqt_create_new function() if 'auto query tuning' is enabled - SAP ASE

Symptom

  • A user process is terminated.
  • The ASE errorlog reports an "infected with signal 11" error in the module aqt_create_new() together with a stack trace:

Current process (0x630032) infected with signal 11 (SIGSEGV)
Address 0x0x0000000000faa975 (aqt_create_new+0x8e), siginfo (code, address) = (1, 0x0x00000000000002e8)

  • The stack trace includes the following functions:

aqt_create_new
s_ap_learning_store
PlanLearningSet::lrnAddPersistent
ApPlan::ApCapture
PopBase::_popEmitFinalize
PopIndScan<SerialCost, SerialProps>::popGenCgp
OptGlobal::_GblAddTopLevel
OptGlobal::GblOptimize
Optimize
s_compile_stmt

  Note: A complete stack trace is available under Attachments.

  • A client program was running a Java program.


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Environment

SAP Adaptive Server Enterprise  (ASE) 16.0 SP03

Product

SAP Adaptive Server Enterprise 16.0

Keywords

CR#814005, CR814005, 814005, auto query tuning, SEGV, segmentation, storage, access, violation, fault, segfault, kisignal, stacktrace, registers , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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