3410811 - Log messages referring to "vectored exception handler" / VEH_Optimize - SAP ASE

• The ASE errorlog prints messages like :
  
  
  • The Adaptive Server will continue its execution as signal 11 is handled by vectored exception handler
  • SIGSEGV is caught by VEH_Optimize()
  • Return VXACTION_CONTINUE from VEH_Optimize()
  • SIGSEGV is caught by VEH_showplan()
    
    
• They may be seen in isolation
• Or can be seen around a 'full' signal 11 sequence - Current process (...) infected with signal 11 (SIGSEGV)
  • These are not limited to a particular stack pattern
  • But will often include a 'showplan' element or code functions from the Optimizer area
    
    
• Below a shortened example
  • As per above, this is only an example.
    A wide variety of stack trace elements can be seen
    
    Address 0x0x0000000001c8eb93 (exc_callprint+0x83), siginfo (code, address) = (128, 0x(nil))
    Current process (0x49a300b3) infected with signal 11 (SIGSEGV)
    
    SQL Text: select show_plan(@SPID@,show_plan(@SPID@,-1,-1,-1),show_plan(@SPID@,show_plan(@SPID@,-1,-1,-1),-1,-1),-1)
    
    pcstkwalk
    ucstkgentrace
    ucbacktrace
    terminate_process
    kisignal
    
    The Adaptive Server will continue its execution as signal 11 is handled by vectored exception handler

• SAP Adaptive Server Enterprise (ASE)
  • 16.0 SP03 PL10 and above
  • 16.0 SP04 and above
    
    

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