3580311 - HADR replication server went down due to Signal 11 Stack Error - SAP SRS

Two different signal 11 stacks are reported post HADR upgrade to 16.0.04.06 HF1, which causes repserver shutdown.

• stack one:
  --------------------------------------------------------------------------------
  E. 2025/03/05 04:57:42. ERROR #1028 WORKER( ) - eneric/dsi/dsiutil.c(344)
      Message from server: Message: 2601, State 6, Severity 16 -- 'Attempt to insert duplicate key row in object 'table_xxx' with unique index 'table_xxx~Index'
  '.
  I. 2025/03/05 04:57:42. Message from server: Message: 3621, State 0, Severity 10 -- 'Command has been aborted.
  '.
  I. 2025/03/05 04:57:42. Open Client Client-Library error: Error: 16842830, Severity 0 -- 'ct_results(): user api layer: external error: There are no rows affected.'.
  I. 2025/03/05 04:57:42. The interface function 'RCIMoreResults' returns FAIL for database 'SID_Site2.SID'. DSI thread is not affected. See messages from the interface function for more information.
  T. 2025/03/05 04:57:42. (14): /remote/pbi_archive17/dang/srs_dir/rs160sp04pl06/dms_srs/calm/repl/svr/code/generic/dsi/hqexec.c:3086:Parallel apply failed.
  I. 2025/03/05 04:57:42. A parallel transaction has failed in database 'SID_Site2.SID'. The transaction will be executed individually.
  T. 2025/03/05 04:57:42. (111): Thread DSI EXEC(107(11) SID_Site2.SID) infected with signal 11.
  T. 2025/03/05 04:57:42. (111): Dumping memory trace.
  T. 2025/03/05 04:57:42. (111): ***************STACK TRACE***************
  T. 2025/03/05 04:57:42. (111): *****thread DSI EXEC(107(11) SID_Site2.SID)*******
  T. 2025/03/05 04:57:42. (111): (linux_dump_all_func_stack+0x35) [0x8cddcb]
  T. 2025/03/05 04:57:42. (111): (dbg_dump_stack_noarg+0x22) [0x8f2e9c]
  T. 2025/03/05 04:57:42. (111): (dbg_dump_stack+0x10f) [0x8f325d]
  T. 2025/03/05 04:57:42. (111): (exc__appDumpStack+0x11b) [0x6dd86b]
  T. 2025/03/05 04:57:42. (111): (exc_terminate+0x244) [0x6e1364]
  T. 2025/03/05 04:57:42. (111): (linux_catch_signal+0x248) [0x543838]
  T. 2025/03/05 04:57:42. (111): /lib64/libpthread.so.0(+0x16910) [0x7f8f5fd2e910]
  T. 2025/03/05 04:57:42. (111): (ct__tds_wr_pkt+0x2a) [0xacaeba]
  T. 2025/03/05 04:57:42. (111): (ct__tds_sendlogout+0xdb) [0xab32eb]
  T. 2025/03/05 04:57:42. (111): (ct_tds_close+0x1fb) [0xab34eb]
  T. 2025/03/05 04:57:42. (111): (ct_async_exec_stack+0x9b) [0xa7c23b]
  T. 2025/03/05 04:57:42. (111): (ct__api_async+0x13f) [0xace49f]
  T. 2025/03/05 04:57:42. (111): (ct_close+0x228) [0xa7ef88]
  T. 2025/03/05 04:57:42. (111): (xc_close+0x3b3) [0xb75f23]
  T. 2025/03/05 04:57:42. (111): (xa_close+0xa6) [0xb73b96]
  T. 2025/03/05 04:57:42. (111): (syb_mts_xa_close+0x40) [0xb61f20]
  T. 2025/03/05 04:57:42. (111): (_ZN14CTLibConnector13RCIDisconnectEP20ci_connection_handlei+0x253) [0x926bc5]
  T. 2025/03/05 04:57:42. (111): (_cm_close_connection+0x3a6) [0x595370]
  T. 2025/03/05 04:57:42. (111): (cm_giveup_connection+0x612) [0x596fd0]
  T. 2025/03/05 04:57:42. (111): (cm_exception_giveup+0xd3) [0x5974d1]
  T. 2025/03/05 04:57:42. (111): (exc__freeToExcPoint+0x7d) [0x6e047f]
  T. 2025/03/05 04:57:42. (111): (exc_reraise_exception+0xb6) [0x6e065e]
  T. 2025/03/05 04:57:42. (111): (exc_raise_exception+0x377) [0x6e031d]
  T. 2025/03/05 04:57:42. (111): () [0x6a59c5]
  T. 2025/03/05 04:57:42. (111): (dsie_ProcessMsgFromSched+0x298) [0x6a89d8]
  T. 2025/03/05 04:57:42. (111): () [0x6a9841]
  T. 2025/03/05 04:57:42. (111): (srv__start_function+0x1f3) [0xa4ac93]
  T. 2025/03/05 04:57:42. (111): /lib64/libpthread.so.0(+0xa6ea) [0x7f8f5fd226ea]
  T. 2025/03/05 04:57:42. (111): /lib64/libc.so.6(clone+0x41) [0x7f8f5e8cd58f]
  T. 2025/03/05 04:57:42. (111): *****End of stack trace.****
  T. 2025/03/05 04:57:42. (111): Internal error. Attempting to produce a core file.
  --------------------------------------------------------------------------------
• after repserver reboot, below second stack showing up shortly:
  --------------------------------------------------------------------------------
  E. 2025/03/05 05:04:49. ERROR #1028 WORKER( ) - eneric/dsi/dsiutil.c(344)
      Message from server: Message: 2601, State 6, Severity 16 -- 'Attempt to insert duplicate key row in object 'table_xxx' with unique index 'table_xxx~Index'
  '.
  I. 2025/03/05 05:04:49. Message from server: Message: 3621, State 0, Severity 10 -- 'Command has been aborted.
  '.
  I. 2025/03/05 05:04:49. Open Client Client-Library error: Error: 16842830, Severity 0 -- 'ct_results(): user api layer: external error: There are no rows affected.'.
  I. 2025/03/05 05:04:49. The interface function 'RCIMoreResults' returns FAIL for database 'SID_Site2.SID'. DSI thread is not affected. See messages from the interface function for more information.
  T. 2025/03/05 05:04:49. (39): /remote/pbi_archive17/dang/srs_dir/rs160sp04pl06/dms_srs/calm/repl/svr/code/generic/dsi/hqexec.c:3086:Parallel apply failed.
  I. 2025/03/05 05:04:49. Retry of a grouped transaction of 556 individual transactions has failed in database 'SID_Site2.SID'. It will be broken into smaller groups and retried.
  E. 2025/03/05 05:04:49. ERROR #1028 DSI EXEC(107(8) SID_Site2.SID) - neric/dsi/dsiqmint.c(5239)
      Message from server: Message: 3701, State 1, Severity 11 -- 'Cannot drop the table 'tempdb..rs_temp_objectXX', because it doesn't exist in the system catalogs.
  '.
  T. 2025/03/05 05:04:49. (112): Thread DSI EXEC(107(8) SID_Site2.SID) infected with signal 11.
  T. 2025/03/05 05:04:49. (112): Dumping memory trace.
  T. 2025/03/05 05:04:49. (112): ***************STACK TRACE***************
  T. 2025/03/05 05:04:49. (112): *****thread DSI EXEC(107(8) SID_Site2.SID)*******
  T. 2025/03/05 05:04:49. (112): (linux_dump_all_func_stack+0x35) [0x8cddcb]
  T. 2025/03/05 05:04:49. (112): (dbg_dump_stack_noarg+0x22) [0x8f2e9c]
  T. 2025/03/05 05:04:49. (112): (dbg_dump_stack+0x10f) [0x8f325d]
  T. 2025/03/05 05:04:49. (112): (exc__appDumpStack+0x11b) [0x6dd86b]
  T. 2025/03/05 05:04:49. (112): (exc_terminate+0x244) [0x6e1364]
  T. 2025/03/05 05:04:49. (112): (linux_catch_signal+0x248) [0x543838]
  T. 2025/03/05 05:04:49. (112): /lib64/libpthread.so.0(+0x16910) [0x7fcdf1473910]
  T. 2025/03/05 05:04:49. (112): (ct__tds_wr_pkt+0x2a) [0xacaeba]
  T. 2025/03/05 05:04:49. (112): (ct__tds_sendlogout+0xdb) [0xab32eb]
  T. 2025/03/05 05:04:49. (112): (ct_tds_close+0x1fb) [0xab34eb]
  T. 2025/03/05 05:04:49. (112): (ct_async_exec_stack+0x9b) [0xa7c23b]
  T. 2025/03/05 05:04:49. (112): (ct__api_async+0x13f) [0xace49f]
  T. 2025/03/05 05:04:49. (112): (ct_close+0x228) [0xa7ef88]
  T. 2025/03/05 05:04:49. (112): (xc_close+0x3b3) [0xb75f23]
  T. 2025/03/05 05:04:49. (112): (xa_close+0xa6) [0xb73b96]
  T. 2025/03/05 05:04:49. (112): (syb_mts_xa_close+0x40) [0xb61f20]
  T. 2025/03/05 05:04:49. (112): (_ZN14CTLibConnector13RCIDisconnectEP20ci_connection_handlei+0x253) [0x926bc5]
  T. 2025/03/05 05:04:49. (112): (_cm_close_connection+0x3a6) [0x595370]
  T. 2025/03/05 05:04:49. (112): (cm_giveup_connection+0x612) [0x596fd0]
  T. 2025/03/05 05:04:49. (112): (cm_exception_giveup+0xd3) [0x5974d1]
  T. 2025/03/05 05:04:49. (112): (exc__freeToExcPoint+0x7d) [0x6e047f]
  T. 2025/03/05 05:04:49. (112): (exc_reraise_exception+0xb6) [0x6e065e]
  T. 2025/03/05 05:04:49. (112): (exc_raise_exception+0x377) [0x6e031d]
  T. 2025/03/05 05:04:49. (112): () [0x6a59c5]
  T. 2025/03/05 05:04:49. (112): (dsie_ProcessMsgFromSched+0x298) [0x6a89d8]
  T. 2025/03/05 05:04:49. (112): () [0x6a9841]
  T. 2025/03/05 05:04:49. (112): (srv__start_function+0x1f3) [0xa4ac93]
  T. 2025/03/05 05:04:49. (112): /lib64/libpthread.so.0(+0xa6ea) [0x7fcdf14676ea]
  T. 2025/03/05 05:04:49. (112): /lib64/libc.so.6(clone+0x41) [0x7fcdefecd58f]
  T. 2025/03/05 05:04:49. (112): *****End of stack trace.****
  T. 2025/03/05 05:04:49. (112): Internal error. Attempting to produce a core file.
  --------------------------------------------------------------------------------

• SAP Replication Server (SRS) 16.0 SP04 PL06 HF1
• SAP Adaptive Server Enterprise (ASE) 16.0 SP04 PL06 HF1 with High Availability Disaster Recovery (HADR) for Business Suite

CR 830444, 830444, exc__freeToExcPoint, ct__tds_wr_pkt, syb_mts_xa_close, syb_mts_xa_close , KBA , BC-SYB-REP , Sybase Replication Server (standalone) , Problem