[14:52:50.566] src/tools/ci/cores_backtrace.sh linux /tmp/cores
[14:52:50.771] dumping /tmp/cores/postgres-6-55539.core for /tmp/cirrus-ci-build/tmp_install/usr/local/pgsql/bin/postgres
[14:52:51.039] [New LWP 55539]
[14:52:51.042] 
[14:52:51.042] This GDB supports auto-downloading debuginfo from the following URLs:
[14:52:51.042]   <https://debuginfod.debian.net>
[14:52:51.042] Enable debuginfod for this session? (y or [n]) [answered N; input not from terminal]
[14:52:51.042] Debuginfod has been disabled.
[14:52:51.042] To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit.
[14:52:51.155] [Thread debugging using libthread_db enabled]
[14:52:51.155] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[14:52:51.155] Core was generated by `postgres: checkpointer performing shutdown checkpoint                         '.
[14:52:51.155] Program terminated with signal SIGABRT, Aborted.
[14:52:51.155] #0  0x00007f55d20abeec in ?? () from /lib/x86_64-linux-gnu/libc.so.6
[14:52:51.211] 
[14:52:51.211] Thread 1 (Thread 0x7f55d1a1dac0 (LWP 55539)):
[14:52:51.211] #0  0x00007f55d20abeec in ?? () from /lib/x86_64-linux-gnu/libc.so.6
[14:52:51.211] No symbol table info available.
[14:52:51.211] #1  0x00007f55d205cfb2 in raise () from /lib/x86_64-linux-gnu/libc.so.6
[14:52:51.211] No symbol table info available.
[14:52:51.211] #2  0x00007f55d2047472 in abort () from /lib/x86_64-linux-gnu/libc.so.6
[14:52:51.211] No symbol table info available.
[14:52:51.211] #3  0x000055fe3fb60e36 in ExceptionalCondition (conditionName=conditionName@entry=0x55fe3ff07a60 "ReplicationSlotCtl != NULL", fileName=fileName@entry=0x55fe3ff061c0 "slot.c", lineNumber=lineNumber@entry=1202) at assert.c:66
[14:52:51.211] No locals.
[14:52:51.211] #4  0x000055fe3f71b785 in ReplicationSlotsComputeRequiredLSN () at slot.c:1202
[14:52:51.211]         i = <optimized out>
[14:52:51.211]         min_required = 0
[14:52:51.211]         __func__ = "ReplicationSlotsComputeRequiredLSN"
[14:52:51.211] #5  0x000055fe3f71e724 in CheckPointReplicationSlots (is_shutdown=is_shutdown@entry=true) at slot.c:2186
[14:52:51.211]         i = 0
[14:52:51.211]         __func__ = "CheckPointReplicationSlots"
[14:52:51.211] #6  0x000055fe3efb7ad1 in CheckPointGuts (checkPointRedo=24734992, flags=flags@entry=5) at xlog.c:7705
[14:52:51.211] No locals.
[14:52:51.211] #7  0x000055fe3efc503f in CreateCheckPoint (flags=flags@entry=5) at xlog.c:7367
[14:52:51.211]         shutdown = true
[14:52:51.211]         checkPoint = <optimized out>
[14:52:51.211]         recptr = <optimized out>
[14:52:51.211]         _logSegNo = <optimized out>
[14:52:51.211]         Insert = <optimized out>
[14:52:51.211]         freespace = <optimized out>
[14:52:51.211]         PriorRedoPtr = <optimized out>
[14:52:51.211]         last_important_lsn = <optimized out>
[14:52:51.211]         vxids = 0x625000028200
[14:52:51.211]         nvxids = <optimized out>
[14:52:51.211]         oldXLogAllowed = 0
[14:52:51.211]         __func__ = "CreateCheckPoint"
[14:52:51.211] #8  0x000055fe3efc5de1 in ShutdownXLOG (code=code@entry=0, arg=arg@entry=0) at xlog.c:6829
[14:52:51.211]         __func__ = "ShutdownXLOG"
[14:52:51.211] #9  0x000055fe3f671059 in CheckpointerMain (startup_data=<optimized out>, startup_data_len=<optimized out>) at checkpointer.c:599
[14:52:51.211]         local_sigjmp_buf = <optimized out>
[14:52:51.211]         checkpointer_context = 0x625000028100
[14:52:51.211]         __func__ = "CheckpointerMain"
[14:52:51.211] #10 0x000055fe3f671a46 in postmaster_child_launch (child_type=child_type@entry=B_CHECKPOINTER, child_slot=56, 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
[14:52:51.211]         pid = <optimized out>
[14:52:51.211] #11 0x000055fe3f677eef in StartChildProcess (type=type@entry=B_CHECKPOINTER) at postmaster.c:3973
[14:52:51.211]         pmchild = 0x629000019c88
[14:52:51.211]         pid = <optimized out>
[14:52:51.211]         __func__ = "StartChildProcess"
[14:52:51.211] #12 0x000055fe3f67ce33 in PostmasterMain (argc=argc@entry=22, argv=argv@entry=0x610000000040) at postmaster.c:1386
[14:52:51.211]         opt = <optimized out>
[14:52:51.211]         status = <optimized out>
[14:52:51.211]         userDoption = <optimized out>
[14:52:51.211]         listen_addr_saved = false
[14:52:51.211]         output_config_variable = <optimized out>
[14:52:51.211]         __func__ = "PostmasterMain"
[14:52:51.211] #13 0x000055fe3f40f185 in main (argc=22, argv=0x610000000040) at main.c:227
[14:52:51.211]         do_check_root = <optimized out>
[14:52:51.211]         dispatch_option = <optimized out>