Re: BUG #16665: Segmentation fault

I'm not sure how to install debug symbols for Postgres, if you point me to the right resource, I can read it.

Here is my full configuration file. I haven't changed so many values

#------------------------------------------------------------------------------
# FILE LOCATIONS
#------------------------------------------------------------------------------

# The default values of these variables are driven from the -D command-line
# option or PGDATA environment variable, represented here as ConfigDir.

#data_directory = 'ConfigDir' # use data in another directory
# (change requires restart)
#hba_file = 'ConfigDir/pg_hba.conf' # host-based authentication file
# (change requires restart)
#ident_file = 'ConfigDir/pg_ident.conf' # ident configuration file
# (change requires restart)

# If external_pid_file is not explicitly set, no extra PID file is written.
#external_pid_file = '' # write an extra PID file
# (change requires restart)

#------------------------------------------------------------------------------
# CONNECTIONS AND AUTHENTICATION
#------------------------------------------------------------------------------

# - Connection Settings -

listen_addresses = '*'
# comma-separated list of addresses;
# defaults to 'localhost'; use '*' for all
# (change requires restart)
#port = 5432 # (change requires restart)
max_connections = 300 # (change requires restart)
#superuser_reserved_connections = 3 # (change requires restart)
#unix_socket_directories = '/var/run/postgresql' # comma-separated list of directories
# (change requires restart)
#unix_socket_group = '' # (change requires restart)
#unix_socket_permissions = 0777 # begin with 0 to use octal notation
# (change requires restart)
#bonjour = off # advertise server via Bonjour
# (change requires restart)
#bonjour_name = '' # defaults to the computer name
# (change requires restart)

# - TCP settings -
# see "man tcp" for details

#tcp_keepalives_idle = 0 # TCP_KEEPIDLE, in seconds;
# 0 selects the system default
#tcp_keepalives_interval = 0 # TCP_KEEPINTVL, in seconds;
# 0 selects the system default
#tcp_keepalives_count = 0 # TCP_KEEPCNT;
# 0 selects the system default
#tcp_user_timeout = 0 # TCP_USER_TIMEOUT, in milliseconds;
# 0 selects the system default

# - Authentication -

#authentication_timeout = 1min # 1s-600s
#password_encryption = md5 # md5 or scram-sha-256
#db_user_namespace = off

# GSSAPI using Kerberos
#krb_server_keyfile = ''
#krb_caseins_users = off

# - SSL -

#ssl = off
#ssl_ca_file = ''
#ssl_cert_file = 'server.crt'
#ssl_crl_file = ''
#ssl_key_file = 'server.key'
#ssl_ciphers = 'HIGH:MEDIUM:+3DES:!aNULL' # allowed SSL ciphers
#ssl_prefer_server_ciphers = on
#ssl_ecdh_curve = 'prime256v1'
#ssl_min_protocol_version = 'TLSv1.2'
#ssl_max_protocol_version = ''
#ssl_dh_params_file = ''
#ssl_passphrase_command = ''
#ssl_passphrase_command_supports_reload = off

#------------------------------------------------------------------------------
# RESOURCE USAGE (except WAL)
#------------------------------------------------------------------------------

# - Memory -

shared_buffers = 8GB # min 128kB
# (change requires restart)
#huge_pages = try # on, off, or try
# (change requires restart)
#temp_buffers = 8MB # min 800kB
#max_prepared_transactions = 0 # zero disables the feature
# (change requires restart)
# Caution: it is not advisable to set max_prepared_transactions nonzero unless
# you actively intend to use prepared transactions.
work_mem = 64MB # min 64kB
#hash_mem_multiplier = 1.0 # 1-1000.0 multiplier on hash table work_mem
maintenance_work_mem = 2GB # min 1MB
#autovacuum_work_mem = -1 # min 1MB, or -1 to use maintenance_work_mem
#logical_decoding_work_mem = 64MB # min 64kB
#max_stack_depth = 2MB # min 100kB
#shared_memory_type = mmap # the default is the first option
# supported by the operating system:
# mmap
# sysv
# windows
# (change requires restart)
dynamic_shared_memory_type = posix # the default is the first option
# supported by the operating system:
# posix
# sysv
# windows
# mmap
# (change requires restart)

# - Disk -

#temp_file_limit = -1 # limits per-process temp file space
# in kilobytes, or -1 for no limit

# - Kernel Resources -

#max_files_per_process = 1000 # min 64
# (change requires restart)

# - Cost-Based Vacuum Delay -

#vacuum_cost_delay = 0 # 0-100 milliseconds (0 disables)
#vacuum_cost_page_hit = 1 # 0-10000 credits
#vacuum_cost_page_miss = 10 # 0-10000 credits
#vacuum_cost_page_dirty = 20 # 0-10000 credits
#vacuum_cost_limit = 200 # 1-10000 credits

# - Background Writer -

#bgwriter_delay = 200ms # 10-10000ms between rounds
#bgwriter_lru_maxpages = 100 # max buffers written/round, 0 disables
#bgwriter_lru_multiplier = 2.0 # 0-10.0 multiplier on buffers scanned/round
#bgwriter_flush_after = 512kB # measured in pages, 0 disables

# - Asynchronous Behavior -

effective_io_concurrency = 200 # 1-1000; 0 disables prefetching
#maintenance_io_concurrency = 10 # 1-1000; 0 disables prefetching
max_worker_processes = 16 # (change requires restart)
max_parallel_maintenance_workers = 4 # taken from max_parallel_workers
max_parallel_workers_per_gather = 4 # taken from max_parallel_workers
#parallel_leader_participation = on
max_parallel_workers = 16 # maximum number of max_worker_processes that
# can be used in parallel operations
#old_snapshot_threshold = -1 # 1min-60d; -1 disables; 0 is immediate
# (change requires restart)
#backend_flush_after = 0 # measured in pages, 0 disables

#------------------------------------------------------------------------------
# WRITE-AHEAD LOG
#------------------------------------------------------------------------------

# - Settings -

#wal_level = replica # minimal, replica, or logical
# (change requires restart)
#fsync = on # flush data to disk for crash safety
# (turning this off can cause
# unrecoverable data corruption)
#synchronous_commit = on # synchronization level;
# off, local, remote_write, remote_apply, or on
#wal_sync_method = fsync # the default is the first option
# supported by the operating system:
# open_datasync
# fdatasync (default on Linux)
# fsync
# fsync_writethrough
# open_sync
#full_page_writes = on # recover from partial page writes
#wal_compression = off # enable compression of full-page writes
#wal_log_hints = off # also do full page writes of non-critical updates
# (change requires restart)
#wal_init_zero = on # zero-fill new WAL files
#wal_recycle = on # recycle WAL files
wal_buffers = 16MB # min 32kB, -1 sets based on shared_buffers
# (change requires restart)
#wal_writer_delay = 200ms # 1-10000 milliseconds
#wal_writer_flush_after = 1MB # measured in pages, 0 disables
#wal_skip_threshold = 2MB

#commit_delay = 0 # range 0-100000, in microseconds
#commit_siblings = 5 # range 1-1000

# - Checkpoints -

#checkpoint_timeout = 5min # range 30s-1d
max_wal_size = 8GB
min_wal_size = 2GB
checkpoint_completion_target = 0.9 # checkpoint target duration, 0.0 - 1.0
#checkpoint_flush_after = 256kB # measured in pages, 0 disables
#checkpoint_warning = 30s # 0 disables

# - Archiving -

#archive_mode = off # enables archiving; off, on, or always
# (change requires restart)
#archive_command = '' # command to use to archive a logfile segment
# placeholders: %p = path of file to archive
# %f = file name only
# e.g. 'test ! -f /mnt/server/archivedir/%f && cp %p /mnt/server/archivedir/%f'
#archive_timeout = 0 # force a logfile segment switch after this
# number of seconds; 0 disables

# - Archive Recovery -

# These are only used in recovery mode.

#restore_command = '' # command to use to restore an archived logfile segment
# placeholders: %p = path of file to restore
# %f = file name only
# e.g. 'cp /mnt/server/archivedir/%f %p'
# (change requires restart)
#archive_cleanup_command = '' # command to execute at every restartpoint
#recovery_end_command = '' # command to execute at completion of recovery

# - Recovery Target -

# Set these only when performing a targeted recovery.

#recovery_target = '' # 'immediate' to end recovery as soon as a
# consistent state is reached
# (change requires restart)
#recovery_target_name = '' # the named restore point to which recovery will proceed
# (change requires restart)
#recovery_target_time = '' # the time stamp up to which recovery will proceed
# (change requires restart)
#recovery_target_xid = '' # the transaction ID up to which recovery will proceed
# (change requires restart)
#recovery_target_lsn = '' # the WAL LSN up to which recovery will proceed
# (change requires restart)
#recovery_target_inclusive = on # Specifies whether to stop:
# just after the specified recovery target (on)
# just before the recovery target (off)
# (change requires restart)
#recovery_target_timeline = 'latest' # 'current', 'latest', or timeline ID
# (change requires restart)
#recovery_target_action = 'pause' # 'pause', 'promote', 'shutdown'
# (change requires restart)

#------------------------------------------------------------------------------
# REPLICATION
#------------------------------------------------------------------------------

# - Sending Servers -

# Set these on the master and on any standby that will send replication data.

#max_wal_senders = 10 # max number of walsender processes
# (change requires restart)
#wal_keep_size = 0 # in megabytes; 0 disables
#max_slot_wal_keep_size = -1 # in megabytes; -1 disables
#wal_sender_timeout = 60s # in milliseconds; 0 disables

#max_replication_slots = 10 # max number of replication slots
# (change requires restart)
#track_commit_timestamp = off # collect timestamp of transaction commit
# (change requires restart)

# - Master Server -

# These settings are ignored on a standby server.

#synchronous_standby_names = '' # standby servers that provide sync rep
# method to choose sync standbys, number of sync standbys,
# and comma-separated list of application_name
# from standby(s); '*' = all
#vacuum_defer_cleanup_age = 0 # number of xacts by which cleanup is delayed

# - Standby Servers -

# These settings are ignored on a master server.

#primary_conninfo = '' # connection string to sending server
#primary_slot_name = '' # replication slot on sending server
#promote_trigger_file = '' # file name whose presence ends recovery
#hot_standby = on # "off" disallows queries during recovery
# (change requires restart)
#max_standby_archive_delay = 30s # max delay before canceling queries
# when reading WAL from archive;
# -1 allows indefinite delay
# (change requires restart)
#max_sync_workers_per_subscription = 2 # taken from max_logical_replication_workers

#------------------------------------------------------------------------------
# QUERY TUNING
#------------------------------------------------------------------------------

# - Planner Method Configuration -

#enable_bitmapscan = on
#enable_hashagg = on
#enable_hashjoin = on
#enable_indexscan = on
#enable_indexonlyscan = on
#enable_material = on
#enable_mergejoin = on
#enable_nestloop = on
#enable_parallel_append = on
#enable_seqscan = on
#enable_sort = on
#enable_incremental_sort = on
#enable_tidscan = on
#enable_partitionwise_join = off
#enable_partitionwise_aggregate = off
#enable_parallel_hash = on
#enable_partition_pruning = on

# - Planner Cost Constants -

#seq_page_cost = 1.0 # measured on an arbitrary scale
random_page_cost = 1.1 # same scale as above
#cpu_tuple_cost = 0.01 # same scale as above
#cpu_index_tuple_cost = 0.005 # same scale as above
#cpu_operator_cost = 0.0025 # same scale as above
#parallel_tuple_cost = 0.1 # same scale as above
#parallel_setup_cost = 1000.0 # same scale as above

#jit_above_cost = 100000 # perform JIT compilation if available
# and query more expensive than this;
# -1 disables
#jit_inline_above_cost = 500000 # inline small functions if query is
# more expensive than this; -1 disables
#jit_optimize_above_cost = 500000 # use expensive JIT optimizations if
# query is more expensive than this;
# -1 disables

#min_parallel_table_scan_size = 8MB
#min_parallel_index_scan_size = 512kB
effective_cache_size = 24GB

# - Genetic Query Optimizer -

#geqo = on
#geqo_threshold = 12
#geqo_effort = 5 # range 1-10
#geqo_pool_size = 0 # selects default based on effort
#geqo_generations = 0 # selects default based on effort
#geqo_selection_bias = 2.0 # range 1.5-2.0
#geqo_seed = 0.0 # range 0.0-1.0

# - Other Planner Options -

#default_statistics_target = 100 # range 1-10000
#constraint_exclusion = partition # on, off, or partition
#cursor_tuple_fraction = 0.1 # range 0.0-1.0
#from_collapse_limit = 8
#join_collapse_limit = 8 # 1 disables collapsing of explicit
# JOIN clauses
#force_parallel_mode = off
#jit = on # allow JIT compilation
#plan_cache_mode = auto # auto, force_generic_plan or
# force_custom_plan

#------------------------------------------------------------------------------
# REPORTING AND LOGGING
#------------------------------------------------------------------------------

# - Where to Log -

#log_destination = 'stderr' # Valid values are combinations of
# stderr, csvlog, syslog, and eventlog,
# depending on platform. csvlog
# requires logging_collector to be on.

# This is used when logging to stderr:
#logging_collector = off # Enable capturing of stderr and csvlog
# into log files. Required to be on for
# csvlogs.
# (change requires restart)

# These are only used if logging_collector is on:
#log_directory = 'log' # directory where log files are written,
# can be absolute or relative to PGDATA
#log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log' # log file name pattern,
# can include strftime() escapes
#log_file_mode = 0600 # creation mode for log files,
# begin with 0 to use octal notation
#log_truncate_on_rotation = off # If on, an existing log file with the
# same name as the new log file will be
# truncated rather than appended to.
# But such truncation only occurs on
# time-driven rotation, not on restarts
# or size-driven rotation. Default is
# off, meaning append to existing files
# in all cases.
#log_rotation_age = 1d # Automatic rotation of logfiles will
# happen after that time. 0 disables.
#log_rotation_size = 10MB # Automatic rotation of logfiles will
# happen after that much log output.
# 0 disables.

# These are relevant when logging to syslog:
#syslog_facility = 'LOCAL0'
#syslog_ident = 'postgres'
#syslog_sequence_numbers = on
#syslog_split_messages = on

# This is only relevant when logging to eventlog (win32):
# (change requires restart)
#event_source = 'PostgreSQL'

# - When to Log -

#log_min_messages = warning # values in order of decreasing detail:
# debug5
# debug4
# debug3
# debug2
# debug1
# info
# notice
# warning
# error
# log
# fatal
# panic

#log_min_error_statement = error # values in order of decreasing detail:
# debug5
# debug4
# debug3
# debug2
# debug1
# info
# notice
# warning
# error
# log
# fatal
# panic (effectively off)

#log_min_duration_statement = -1 # -1 is disabled, 0 logs all statements
# and their durations, > 0 logs only
# statements running at least this number
# of milliseconds

#log_min_duration_sample = -1 # -1 is disabled, 0 logs a sample of statements
# and their durations, > 0 logs only a sample of
# statements running at least this number
# of milliseconds;
# sample fraction is determined by log_statement_sample_rate

#log_statement_sample_rate = 1.0 # fraction of logged statements exceeding
# log_min_duration_sample to be logged;
# 1.0 logs all such statements, 0.0 never logs

#log_transaction_sample_rate = 0.0 # fraction of transactions whose statements
# are logged regardless of their duration; 1.0 logs all
# statements from all transactions, 0.0 never logs

# - What to Log -

#debug_print_parse = off
#debug_print_rewritten = off
#debug_print_plan = off
#debug_pretty_print = on
#log_checkpoints = off
#log_connections = off
#log_disconnections = off
#log_duration = off
#log_error_verbosity = default # terse, default, or verbose messages
#log_hostname = off
#log_line_prefix = '%m [%p] ' # special values:
# %a = application name
# %u = user name
# %d = database name
# %r = remote host and port
# %h = remote host
# %b = backend type
# %p = process ID
# %t = timestamp without milliseconds
# %m = timestamp with milliseconds
# %n = timestamp with milliseconds (as a Unix epoch)
# %i = command tag
# %e = SQL state
# %c = session ID
# %l = session line number
# %s = session start timestamp
# %v = virtual transaction ID
# %x = transaction ID (0 if none)
# %q = stop here in non-session
# processes
# %% = '%'
# e.g. '<%u%%%d> '
#log_lock_waits = off # log lock waits >= deadlock_timeout
#log_parameter_max_length = -1 # when logging statements, limit logged
# bind-parameter values to N bytes;
# -1 means print in full, 0 disables
#log_parameter_max_length_on_error = 0 # when logging an error, limit logged
# bind-parameter values to N bytes;
# -1 means print in full, 0 disables
#log_statement = 'none' # none, ddl, mod, all
#log_replication_commands = off
#log_temp_files = -1 # log temporary files equal or larger
# than the specified size in kilobytes;
# -1 disables, 0 logs all temp files
log_timezone = 'UTC'

#------------------------------------------------------------------------------
# PROCESS TITLE
#------------------------------------------------------------------------------

#cluster_name = '' # added to process titles if nonempty
# (change requires restart)
#update_process_title = on

#------------------------------------------------------------------------------
# STATISTICS
#------------------------------------------------------------------------------

# - Query and Index Statistics Collector -

#track_activities = on
#track_counts = on
#track_io_timing = off
#track_functions = none # none, pl, all
#track_activity_query_size = 1024 # (change requires restart)
#stats_temp_directory = 'pg_stat_tmp'

# - Monitoring -

#log_parser_stats = off
#log_planner_stats = off
#log_executor_stats = off
#log_statement_stats = off

#------------------------------------------------------------------------------
# AUTOVACUUM
#------------------------------------------------------------------------------

#autovacuum = on # Enable autovacuum subprocess? 'on'
# requires track_counts to also be on.
#log_autovacuum_min_duration = -1 # -1 disables, 0 logs all actions and
# their durations, > 0 logs only
# actions running at least this number
# of milliseconds.
#autovacuum_max_workers = 3 # max number of autovacuum subprocesses
# (change requires restart)
#autovacuum_naptime = 1min # time between autovacuum runs
#autovacuum_vacuum_threshold = 50 # min number of row updates before
# vacuum
#autovacuum_vacuum_insert_threshold = 1000 # min number of row inserts
# before vacuum; -1 disables insert
# vacuums
#autovacuum_analyze_threshold = 50 # min number of row updates before
# analyze
#autovacuum_vacuum_scale_factor = 0.2 # fraction of table size before vacuum
#autovacuum_vacuum_insert_scale_factor = 0.2 # fraction of inserts over table
# size before insert vacuum
#autovacuum_analyze_scale_factor = 0.1 # fraction of table size before analyze
#autovacuum_freeze_max_age = 200000000 # maximum XID age before forced vacuum
# (change requires restart)
#autovacuum_multixact_freeze_max_age = 400000000 # maximum multixact age
# before forced vacuum
# (change requires restart)
#autovacuum_vacuum_cost_delay = 2ms # default vacuum cost delay for
# autovacuum, in milliseconds;
# -1 means use vacuum_cost_delay
#autovacuum_vacuum_cost_limit = -1 # default vacuum cost limit for
# autovacuum, -1 means use
# vacuum_cost_limit

#------------------------------------------------------------------------------
# CLIENT CONNECTION DEFAULTS
#------------------------------------------------------------------------------

# - Statement Behavior -

#client_min_messages = notice # values in order of decreasing detail:
# debug5
# debug4
# debug3
# debug2
# debug1
# log
# notice
# warning
# error
#search_path = '"$user", public' # schema names
#row_security = on
#default_tablespace = '' # a tablespace name, '' uses the default
#temp_tablespaces = '' # a list of tablespace names, '' uses
# only default tablespace
#default_table_access_method = 'heap'
#check_function_bodies = on
#default_transaction_isolation = 'read committed'
#default_transaction_read_only = off
#default_transaction_deferrable = off
#session_replication_role = 'origin'
#statement_timeout = 0 # in milliseconds, 0 is disabled
#lock_timeout = 0 # in milliseconds, 0 is disabled
#idle_in_transaction_session_timeout = 0 # in milliseconds, 0 is disabled
#vacuum_freeze_min_age = 50000000
#vacuum_freeze_table_age = 150000000
#vacuum_multixact_freeze_min_age = 5000000
#vacuum_multixact_freeze_table_age = 150000000
#vacuum_cleanup_index_scale_factor = 0.1 # fraction of total number of tuples
# before index cleanup, 0 always performs
# index cleanup
#bytea_output = 'hex' # hex, escape
#xmlbinary = 'base64'
#xmloption = 'content'
#gin_fuzzy_search_limit = 0
#gin_pending_list_limit = 4MB

# - Locale and Formatting -

datestyle = 'iso, mdy'
#intervalstyle = 'postgres'
timezone = 'UTC'
#timezone_abbreviations = 'Default' # Select the set of available time zone
# abbreviations. Currently, there are
# Default
# Australia (historical usage)
# India
# You can create your own file in
# share/timezonesets/.
#extra_float_digits = 1 # min -15, max 3; any value >0 actually
# selects precise output mode
#client_encoding = sql_ascii # actually, defaults to database
# encoding

# These settings are initialized by initdb, but they can be changed.
lc_messages = 'en_US.utf8' # locale for system error message
# strings
lc_monetary = 'en_US.utf8' # locale for monetary formatting
lc_numeric = 'en_US.utf8' # locale for number formatting
lc_time = 'en_US.utf8' # locale for time formatting

# default configuration for text search
default_text_search_config = 'pg_catalog.english'

# - Shared Library Preloading -

#shared_preload_libraries = '' # (change requires restart)
shared_preload_libraries = 'pg_stat_statements'
pg_stat_statements.track = all
#local_preload_libraries = ''
#session_preload_libraries = ''
#jit_provider = 'llvmjit' # JIT library to use

# - Other Defaults -

#dynamic_library_path = '$libdir'

#------------------------------------------------------------------------------
# LOCK MANAGEMENT
#------------------------------------------------------------------------------

#deadlock_timeout = 1s
#max_locks_per_transaction = 64 # min 10
# (change requires restart)
#max_pred_locks_per_transaction = 64 # min 10
# (change requires restart)
#max_pred_locks_per_relation = -2 # negative values mean
# (max_pred_locks_per_transaction
# / -max_pred_locks_per_relation) - 1
#max_pred_locks_per_page = 2 # min 0

#------------------------------------------------------------------------------
# VERSION AND PLATFORM COMPATIBILITY
#------------------------------------------------------------------------------

# - Previous PostgreSQL Versions -

#array_nulls = on
#backslash_quote = safe_encoding # on, off, or safe_encoding
#escape_string_warning = on
#lo_compat_privileges = off
#operator_precedence_warning = off
#quote_all_identifiers = off
#standard_conforming_strings = on
#synchronize_seqscans = on

# - Other Platforms and Clients -

#transform_null_equals = off

#------------------------------------------------------------------------------
# ERROR HANDLING
#------------------------------------------------------------------------------

#exit_on_error = off # terminate session on any error?
#restart_after_crash = on # reinitialize after backend crash?
#data_sync_retry = off # retry or panic on failure to fsync
# data?
# (change requires restart)

#------------------------------------------------------------------------------
# CONFIG FILE INCLUDES
#------------------------------------------------------------------------------

# These options allow settings to be loaded from files other than the
# default postgresql.conf. Note that these are directives, not variable
# assignments, so they can usefully be given more than once.

#include_dir = '...' # include files ending in '.conf' from
# a directory, e.g., 'conf.d'
#include_if_exists = '...' # include file only if it exists
#include = '...' # include file

#------------------------------------------------------------------------------
# CUSTOMIZED OPTIONS
#------------------------------------------------------------------------------

# Add settings for extensions here

> On Sunday, Oct 11, 2020 at 2:37 PM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com (mailto:pavel(dot)stehule(at)gmail(dot)com)> wrote:
>
>
> ne 11. 10. 2020 v 3:13 odesílatel Raphael Megzari <raphael(at)megzari(dot)com (mailto:raphael(at)megzari(dot)com)> napsal:
> > ok here is the backtrace that I got
> >
> > Let me know if you need anything else
>
> please, can you install debug symbols for Postgres. In this backtrace is not detail information.
>
> It's strange so Postgres crashes in LWLockAttemptLock
>
> Maybe there is problem in https://github.com/postgres/postgres/commit/bb16aba50c9492490a0b57e600a932798f45cd4f
>
> Do you use serializable level of transaction isolations?
>
>
>
> >
> > #0 0x0000556931d0ba55 in LWLockAttemptLock ()
> > #1 0x0000556931d0c537 in LWLockAcquire ()
> > #2 0x0000556931cefe83 in ReadBuffer_common ()
> > #3 0x0000556931cf0626 in ReadBufferExtended ()
> > #4 0x0000556931a8c9b0 in heapgetpage ()
> > #5 0x0000556931a8cf09 in heapgettup_pagemode ()
> > #6 0x0000556931a8de3e in heap_getnextslot ()
> > #7 0x0000556931bf27fe in SeqNext ()
> > #8 0x0000556931bd15b7 in ExecScan ()
> > #9 0x0000556931bf115f in ExecNestLoop ()
> > #10 0x0000556931bf115f in ExecNestLoop ()
> > #11 0x0000556931be1147 in ExecGather ()
> > #12 0x0000556931bc8a2b in standard_ExecutorRun ()
> > #13 0x00007f10dcb8d345 in pgss_ExecutorRun () from /usr/local/lib/postgresql/pg_stat_statements.so
> > #14 0x0000556931d1e41c in PortalRunSelect ()
> > #15 0x0000556931d1f5d6 in PortalRun ()
> > #16 0x0000556931d1cb58 in PostgresMain ()
> > #17 0x0000556931caa3d7 in ServerLoop ()
> > #18 0x0000556931cab333 in PostmasterMain ()
> > #19 0x0000556931a4db7c in main ()
> >
> >
> >
> >
> >
> > > On Saturday, Oct 10, 2020 at 11:57 PM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com (mailto:pavel(dot)stehule(at)gmail(dot)com)> wrote:
> > >
> > >
> > > so 10. 10. 2020 v 16:51 odesílatel Raphael Megzari <raphael(at)megzari(dot)com (mailto:raphael(at)megzari(dot)com)> napsal:
> > > > I'm not really sure how to read that binary file.
> > > >
> > > > I have uploaded to an s3 bucket and made it public.
> > > > Anyone should be able to access that file
> > > > https://s3.eu-central-1.wasabisys.com/union-backups/core_dump.gz
> > > >
> > > >
> > >
> > >
> > > this is not good idea
> > >
> > > see https://stackoverflow.com/questions/5115613/core-dump-file-analysis
> > >
> > > Pavel
> > >
> > > >
> > > >
> > > > it's 2GB
> > > >
> > > > If you have a link to a documentation of how I can read that file and get the stacktrace, I would be glad to give it a read.
> > > >
> > > >
> > > >
> > > > > On Saturday, Oct 10, 2020 at 8:56 PM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com (mailto:pavel(dot)stehule(at)gmail(dot)com)> wrote:
> > > > >
> > > > >
> > > > > so 10. 10. 2020 v 13:27 odesílatel Raphael Megzari <raphael(at)megzari(dot)com (mailto:raphael(at)megzari(dot)com)> napsal:
> > > > > > Awesome, thank you!
> > > > > > It's the right thing.
> > > > > >
> > > > > > How do I share it?
> > > > >
> > > > > important is the backtrace
> > > > >
> > > > > paste it to mail
> > > > >
> > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > > On Saturday, Oct 10, 2020 at 8:24 PM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com (mailto:pavel(dot)stehule(at)gmail(dot)com)> wrote:
> > > > > > >
> > > > > > >
> > > > > > > so 10. 10. 2020 v 13:19 odesílatel Raphael Megzari <raphael(at)megzari(dot)com (mailto:raphael(at)megzari(dot)com)> napsal:
> > > > > > > > Thank you for taking the time to have a look.
> > > > > > > >
> > > > > > > > I'm not sure how to enable core dump with the docker image.
> > > > > > > >
> > > > > > > > I've seen some documentation where the db is started with pg_ctl anc a "c" flag. I couldn't find anything on enabling it on the docker image.
> > > > > > > >
> > > > > > > > in my data folder, I have a huge core file (8 GB). Would it be possible that it is the core dump file generated after the segfault?
> > > > > > >
> > > > > > > you can check a create time
> > > > > > >
> > > > > > > Pavel
> > > > > > >
> > > > > > > >
> > > > > > > > Raphael
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > > On Saturday, Oct 10, 2020 at 6:04 PM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com (mailto:pavel(dot)stehule(at)gmail(dot)com)> wrote:
> > > > > > > > > Hi
> > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > If I can help in any ways, please let me know.
> > > > > > > > > > I don't mind trying things, like I said, the bug happens about every 2
> > > > > > > > > > days.
> > > > > > > > >
> > > > > > > > > This is a bug, but from your bug report isn't possible to detect any information.
> > > > > > > > >
> > > > > > > > > Can you enable core dump generating, and can you send a core dump?
> > > > > > > > >
> > > > > > > > > Regards
> > > > > > > > >
> > > > > > > > > Pavel
> > > > > > > > > >
> > > > > > > > > > Cheers!
> > > > > > > > > >