[10:04:08.927] src/tools/ci/cores_backtrace.sh linux /tmp/cores
[10:04:09.116] dumping /tmp/cores/postgres-6-53031.core for /tmp/cirrus-ci-build/tmp_install/usr/local/pgsql/bin/postgres
[10:04:09.385] [New LWP 53031]
[10:04:09.388] 
[10:04:09.388] This GDB supports auto-downloading debuginfo from the following URLs:
[10:04:09.388]   <https://debuginfod.debian.net>
[10:04:09.388] Enable debuginfod for this session? (y or [n]) [answered N; input not from terminal]
[10:04:09.388] Debuginfod has been disabled.
[10:04:09.388] To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit.
[10:04:09.495] [Thread debugging using libthread_db enabled]
[10:04:09.495] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[10:04:09.495] Core was generated by `postgres: checkpointer performing shutdown checkpoint                         '.
[10:04:09.495] Program terminated with signal SIGABRT, Aborted.
[10:04:09.495] #0  0x00007f2a9dcabeec in ?? () from /lib/x86_64-linux-gnu/libc.so.6
[10:04:09.551] 
[10:04:09.551] Thread 1 (Thread 0x7f2a9da1eac0 (LWP 53031)):
[10:04:09.551] #0  0x00007f2a9dcabeec in ?? () from /lib/x86_64-linux-gnu/libc.so.6
[10:04:09.551] No symbol table info available.
[10:04:09.551] #1  0x00007f2a9dc5cfb2 in raise () from /lib/x86_64-linux-gnu/libc.so.6
[10:04:09.551] No symbol table info available.
[10:04:09.551] #2  0x00007f2a9dc47472 in abort () from /lib/x86_64-linux-gnu/libc.so.6
[10:04:09.551] No symbol table info available.
[10:04:09.551] #3  0x000055a0fa07397a in ExceptionalCondition (conditionName=conditionName@entry=0x55a0fa41a980 "ReplicationSlotCtl != NULL", fileName=fileName@entry=0x55a0fa4190e0 "slot.c", lineNumber=lineNumber@entry=1195) at assert.c:66
[10:04:09.551] No locals.
[10:04:09.551] #4  0x000055a0f9c2e394 in ReplicationSlotsComputeRequiredLSN () at slot.c:1195
[10:04:09.551]         i = <optimized out>
[10:04:09.551]         min_required = 0
[10:04:09.551]         __func__ = "ReplicationSlotsComputeRequiredLSN"
[10:04:09.551] #5  0x000055a0f9c31382 in CheckPointReplicationSlots (is_shutdown=is_shutdown@entry=true) at slot.c:2181
[10:04:09.551]         i = 0
[10:04:09.551]         __func__ = "CheckPointReplicationSlots"
[10:04:09.551] #6  0x000055a0f94caad1 in CheckPointGuts (checkPointRedo=24734656, flags=flags@entry=5) at xlog.c:7705
[10:04:09.551] No locals.
[10:04:09.551] #7  0x000055a0f94d803f in CreateCheckPoint (flags=flags@entry=5) at xlog.c:7367
[10:04:09.551]         shutdown = true
[10:04:09.551]         checkPoint = <optimized out>
[10:04:09.551]         recptr = <optimized out>
[10:04:09.551]         _logSegNo = <optimized out>
[10:04:09.551]         Insert = <optimized out>
[10:04:09.551]         freespace = <optimized out>
[10:04:09.551]         PriorRedoPtr = <optimized out>
[10:04:09.551]         last_important_lsn = <optimized out>
[10:04:09.551]         vxids = 0x625000028200
[10:04:09.551]         nvxids = <optimized out>
[10:04:09.551]         oldXLogAllowed = 0
[10:04:09.551]         __func__ = "CreateCheckPoint"
[10:04:09.551] #8  0x000055a0f94d8de1 in ShutdownXLOG (code=code@entry=0, arg=arg@entry=0) at xlog.c:6829
[10:04:09.551]         __func__ = "ShutdownXLOG"
[10:04:09.551] #9  0x000055a0f9b83cb8 in CheckpointerMain (startup_data=<optimized out>, startup_data_len=<optimized out>) at checkpointer.c:599
[10:04:09.551]         local_sigjmp_buf = <optimized out>
[10:04:09.551]         checkpointer_context = 0x625000028100
[10:04:09.551]         __func__ = "CheckpointerMain"
[10:04:09.551] #10 0x000055a0f9b846a5 in postmaster_child_launch (child_type=child_type@entry=B_CHECKPOINTER, child_slot=229, startup_data=startup_data@entry=0x0, startup_data_len=startup_data_len@entry=0, client_sock=client_sock@entry=0x0) at launch_backend.c:290
[10:04:09.551]         pid = <optimized out>
[10:04:09.551] #11 0x000055a0f9b8ab4e in StartChildProcess (type=type@entry=B_CHECKPOINTER) at postmaster.c:3973
[10:04:09.551]         pmchild = 0x627000002bf8
[10:04:09.551]         pid = <optimized out>
[10:04:09.551]         __func__ = "StartChildProcess"
[10:04:09.551] #12 0x000055a0f9b8fa92 in PostmasterMain (argc=argc@entry=22, argv=argv@entry=0x610000000040) at postmaster.c:1386
[10:04:09.551]         opt = <optimized out>
[10:04:09.551]         status = <optimized out>
[10:04:09.551]         userDoption = <optimized out>
[10:04:09.551]         listen_addr_saved = false
[10:04:09.551]         output_config_variable = <optimized out>
[10:04:09.551]         __func__ = "PostmasterMain"
[10:04:09.551] #13 0x000055a0f9921f11 in main (argc=22, argv=0x610000000040) at main.c:227
[10:04:09.551]         do_check_root = <optimized out>
[10:04:09.551]         dispatch_option = <optimized out>