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2950489 - Signal 11 in mda_empty_opstack() when running sp_sysmon or sp_monitor - SAP ASE

Symptom

  • A user connection may be terminated unexpectedly.
  • An "infected with signal 11" error in the module mda_empty_opstack() together with a stack trace is reported in the ASE errorlog:

Current process (0xba90023) infected with signal 11 (SIGSEGV)
Address 0x0x0000000003307c00 (mda_empty_opstack+0x39), siginfo (code, address) = (1, 0x(nil))

  • The stack trace contains the following functions:

mda_empty_opstack
mda_propagate_switches
mda__freeze
mda_config_bi

  Note: A complete stack trace is available under Attachments.


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Environment

  • SAP Adaptive Server Enterprise (ASE) 15.7
  • SAP Adaptive Server Enterprise (ASE) 16.0

Product

SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0

Keywords

CR#803956, CR803956, 803956, CR808804, CR#808804, 808804, Sybase, ASEServer, SAPASE, dataserver, SEGV, segmentation, storage, access, violation, fault, segfault, kisignal, stacktrace, registers, sp_sysmon, sp_monitor, , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , BC-SYB-ASE-CE , ASE Cluster Edition (Standalone) , Bug Filed

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