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2656129 - RS crashes with signal 11 when parallel DSI is activated and a deadlock is detected on a DSI Executor thread connection - SAP SRS

Symptom

  • Parallel DSI is enabled on replication server.
  • A deadlock is detected on a DSI Executor thread and the DSI-E thread is selected as the victim of the deadlock on ASE side.  
  • In RS log, below stacktrace may be printed:

Thread DSI EXEC(xxx(x) xxx.xxx) infected with signal 11.
Dumping memory trace.
***************STACK TRACE***************
... omit ...
dbg_dump_stack ()
exc__appDumpStack ()
exc_terminate ()
linux_catch_signal ()
NULL (), lib: /lib64/libpthread.so.0
unknown dynamic function
_dsi_exec ()
dsi__ExecThread ()
dsi__seqInternalCheck ()
dsi__seqSubmitCheck ()
dsi__seqCheckSequence ()
_dsi_exec ()
_dsi_qm_exec_cmd ()
dsie__GenerateSQL ()
dsie__ProcessGroup ()
dsie__main ()
dsie__wrap ()
srv__start_function ()
... omit ...


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Environment

  • SAP Replication Server (SRS) 15.7.1

Product

SAP Replication Server 15.7

Keywords

CR677613, CR#677613, 677613, RepServer, RS, signal 11, _dsi_exec(), _dsi_exec, deadlock , KBA , BC-SYB-REP , Sybase Replication Server (standalone) , BC-SYB-REP-HET , Replication Server Heterogeneous Edition (RSHE) , BC-SYB-REP-RTL , Rep Server Real-Time Loading Edition (RTLE) , BC-SYB-REP-ME , Replication Server Messaging Edition (RSME) , BC-SYB-REP-RSO , Rep Server Options (RSO) , Problem

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