Re: BUG #19078: Segfaults in tts_minimal_store_tuple() following pg_upgrade - Mailing list pgsql-bugs

Hi.

Hash aggregation.

> enable_hashagg=off

Fixed all the crashes in a subset of queries that used hash aggregation (tts_minimal_store_tuple).
I'm sure about that since I did some a/b testing within a timeframe of a few days.


Configuration.

> > postgresql_effective_cache_size = 560GB
> > postgresql_shared_buffers = 225GB
> Which extension are these GUCs from?

It was a typo in my message, sorry about that.
In postgresql.conf they're stated correctly as effective_cache_size and shared_buffers.


Partition lookup.

> Are you able to test this without any extensions loaded to see if you still get a crash?

Yes, reproduced it on a machine with a clean Debian 13 & Postgresql 18 install
from the sources mentioned earlier. The only extension loaded is plpgsql. Changes to
postgresql.conf: max_connections=1000, work_mem=2000MB, shared_buffers=10GB, max_wal_size=10GB.

I pg_restore'd two tables (+partitions) from production into a clean cluster and created
indexes manually. The partitioned table is 2.2TB in size. I hope to narrow things down
and provide better reproduction steps tomorrow.

To cause the segfault, these queries were launched simultaneously.

> -- in 2 parallel infinite loops
> with ids as (select (118998526-random()*100000)::int id from generate_series(1,10000))
> update tcv_scene_datas set id=id where cv_scene_id in(select id from ids);
> with ids as (select (118998526-random()*100000)::int id from generate_series(1,10000))
> update tcv_scenes set id=id where id in(select id from ids);

> -- in 10 parallel infinite loops
> set jit = off;
> begin;
> -- <EXPLAIN to save query plan>
> update Tcv_scenes cs -- CRASHES
> set
>         state_id=2,
>         stitching_server_id=null,
>         stitching_server_pid=null
> from
>         tcv_scene_datas cd -- partitioned
> where
>         cd.cv_scene_id=cs.id and
>         (
>                 (state_id=7 and date_cr<now()-interval '24 hours' and date_state_mo>now()-interval '15 minutes' and
cd.stitcher_result::textlike '%download%') or 
>                 (state_id=3 and date_state_mo<now()-interval '5 minutes')
>         )
> returning cs.id;
> rollback;

Plan stayed the same. Stacktrace also looks the same (now without analyze part):

> #0  0x000055987ffde300 in PartitionDirectoryLookup (pdir=0x0, rel=0x7f3069be8c98) at
./build/../src/backend/partitioning/partdesc.c:462
>         pde = <optimized out>
>         relid = 0
>         found = false
> #1  0x000055987febeb51 in InitExecPartitionPruneContexts (prunestate=<optimized out>, parent_plan=0x55988a30b7d0,
initially_valid_subplans=<optimizedout>, 
>     n_total_subplans=<optimized out>) at ./build/../src/backend/executor/execPartition.c:2413
>         partkey = 0x5598892dd5a0
>         partdesc = <optimized out>
>         pprune = <optimized out>
>         nparts = 239
>         k = <optimized out>
>         prunedata = 0x559889a8f7b8
>         j = <optimized out>
>         estate = <optimized out>
>         new_subplan_indexes = <optimized out>
>         new_other_subplans = <optimized out>
>         i = 0
>         newidx = <optimized out>
>         fix_subplan_map = <optimized out>
>         estate = <optimized out>
>         new_subplan_indexes = <optimized out>
>         new_other_subplans = <error reading variable new_other_subplans (Cannot access memory at address 0x0)>
>         i = <optimized out>
>         newidx = <optimized out>
>         fix_subplan_map = <optimized out>
>         prunedata = <error reading variable prunedata (Cannot access memory at address 0x0)>
>         j = <optimized out>
>         pprune = <optimized out>
>         nparts = <optimized out>
>         k = <optimized out>
>         partkey = <optimized out>
>         partdesc = <optimized out>
>         oldidx = <optimized out>
>         subidx = <optimized out>
>         subprune = <optimized out>
> #2  ExecInitPartitionExecPruning (planstate=planstate@entry=0x55988a30b7d0, n_total_subplans=<optimized out>,
part_prune_index=<optimizedout>, relids=<optimized out>, 
>     initially_valid_subplans=initially_valid_subplans@entry=0x7ffefb55a2e0) at
./build/../src/backend/executor/execPartition.c:1934
>         prunestate = <optimized out>
>         estate = <optimized out>
>         pruneinfo = <optimized out>
>         __func__ = "ExecInitPartitionExecPruning"
> #3  0x000055987fed1030 in ExecInitAppend (node=node@entry=0x7f2dcff14420, estate=estate@entry=0x55988a309b08,
eflags=eflags@entry=0)
>     at ./build/../src/backend/executor/nodeAppend.c:147
>         prunestate = <optimized out>
>         appendstate = 0x55988a30b7d0
>         appendplanstates = <optimized out>
>         appendops = <optimized out>
>         validsubplans = 0x55988a325470
>         asyncplans = <optimized out>
>         nplans = <optimized out>
>         nasyncplans = <optimized out>
>         firstvalid = <optimized out>
>         i = <optimized out>
>         j = <optimized out>
> #4  0x000055987febfad5 in ExecInitNode (node=0x7f2dcff14420, estate=estate@entry=0x55988a309b08, eflags=0) at
./build/../src/backend/executor/execProcnode.c:182
>         result = <optimized out>
>         subps = <optimized out>
>         l = <optimized out>
>         __func__ = "ExecInitNode"
> #5  0x000055987feea383 in ExecInitNestLoop (node=node@entry=0x7f2dd0006f28, estate=estate@entry=0x55988a309b08,
eflags=<optimizedout>, eflags@entry=0) 
>     at ./build/../src/backend/executor/nodeNestloop.c:301
>         nlstate = 0x55988a30a7b0
>         __func__ = "ExecInitNestLoop"
> #6  0x000055987febf8f1 in ExecInitNode (node=node@entry=0x7f2dd0006f28, estate=estate@entry=0x55988a309b08,
eflags=eflags@entry=0)
>     at ./build/../src/backend/executor/execProcnode.c:298
>         result = <optimized out>
>         subps = <optimized out>
>         l = <optimized out>
>         __func__ = "ExecInitNode"
> #7  0x000055987feba80f in EvalPlanQualStart (epqstate=0x559889383d08, planTree=0x7f2dd0006f28) at
./build/../src/backend/executor/execMain.c:3152
>         parentestate = <optimized out>
>         oldcontext = 0x559889a8ea20
>         rtsize = <optimized out>
>         rcestate = 0x55988a309b08
>         l = <optimized out>
>         parentestate = <optimized out>
>         rtsize = <optimized out>
>         rcestate = <optimized out>
>         oldcontext = <optimized out>
>         l = <optimized out>
>         i = <optimized out>
>         l__state = <optimized out>
>         subplan = <optimized out>
>         subplanstate = <optimized out>
>         l__state = <optimized out>
>         earm = <optimized out>
>         l__state = <optimized out>
>         rtindex = <optimized out>
> #8  EvalPlanQualBegin (epqstate=epqstate@entry=0x559889383d08) at ./build/../src/backend/executor/execMain.c:2930
>         parentestate = <optimized out>
>         recheckestate = <optimized out>
> #9  0x000055987feba9ab in EvalPlanQual (epqstate=0x559889383d08, relation=relation@entry=0x7f3069be4710, rti=1,
inputslot=inputslot@entry=0x559889fc01f0)
>     at ./build/../src/backend/executor/execMain.c:2650
>         slot = <optimized out>
>         testslot = <optimized out>
> #10 0x000055987fee601d in ExecUpdate (context=context@entry=0x7ffefb55a5b0,
resultRelInfo=resultRelInfo@entry=0x559889383e28,tupleid=tupleid@entry=0x7ffefb55a58a, 
>     oldtuple=oldtuple@entry=0x0, oldSlot=<optimized out>, oldSlot@entry=0x559889fb3178,
slot=slot@entry=0x559889fb3580,canSetTag=true) 
>     at ./build/../src/backend/executor/nodeModifyTable.c:2606
>         inputslot = 0x559889fc01f0
>         epqslot = <optimized out>
>         lockedtid = {ip_blkid = {bi_hi = 31, bi_lo = 16528}, ip_posid = 88}
>         estate = 0x559889a8eb18
>         resultRelationDesc = <optimized out>
>         updateCxt = {crossPartUpdate = false, updateIndexes = TU_None, lockmode = LockTupleNoKeyExclusive}
>         result = <optimized out>
>         __func__ = "ExecUpdate"
> #11 0x000055987fee7fff in ExecModifyTable (pstate=0x559889383c20) at
./build/../src/backend/executor/nodeModifyTable.c:4510
>         node = 0x559889383c20
>         context = {mtstate = 0x559889383c20, epqstate = 0x559889383d08, estate = 0x559889a8eb18, planSlot =
0x559889fac818,tmfd = {ctid = {ip_blkid = {bi_hi = 31, 
>                 bi_lo = 16528}, ip_posid = 62}, xmax = 17203, cmax = 4294967295, traversed = true}, cpDeletedSlot =
0x0,cpUpdateReturningSlot = 0x7ffefb55a620} 
>         estate = 0x559889a8eb18
>         operation = CMD_UPDATE
>         resultRelInfo = 0x559889383e28
>         subplanstate = <optimized out>
>         slot = 0x559889fb3580
>         oldSlot = 0x559889fb3178
>         tuple_ctid = {ip_blkid = {bi_hi = 31, bi_lo = 16528}, ip_posid = 62}
>         oldtupdata = {t_len = 240, t_self = {ip_blkid = {bi_hi = 0, bi_lo = 0}, ip_posid = 50744}, t_tableOid =
402685741,t_data = 0x559889facf00} 
>         oldtuple = 0x0
>         tupleid = <optimized out>
>         tuplock = false
>         __func__ = "ExecModifyTable"
> #12 0x000055987feb791b in ExecProcNode (node=0x559889383c20) at ./build/../src/include/executor/executor.h:315
> No locals.
> #13 ExecutePlan (queryDesc=0x5598892beb88, operation=CMD_UPDATE, sendTuples=true, numberTuples=0,
direction=<optimizedout>, dest=0x5598892beb00) 
>     at ./build/../src/backend/executor/execMain.c:1697
>         estate = 0x559889a8eb18
>         use_parallel_mode = <optimized out>
>         slot = <optimized out>
>         planstate = 0x559889383c20
>         current_tuple_count = 536
>         estate = <optimized out>
>         planstate = <optimized out>
>         use_parallel_mode = <optimized out>
>         slot = <optimized out>
>         current_tuple_count = <optimized out>
> #14 standard_ExecutorRun (queryDesc=0x5598892beb88, direction=<optimized out>, count=0) at
./build/../src/backend/executor/execMain.c:366
>         estate = 0x559889a8eb18
>         operation = CMD_UPDATE
>         dest = 0x5598892beb00
>         sendTuples = <optimized out>
>         oldcontext = 0x5598892be8f0
> #15 0x0000559880092774 in ProcessQuery (plan=0x7f2dd001cb00,
>     sourceText=0x559889170158 "update Tcv_scenes
cs\nset\n\tstate_id=2,\n\tstitching_server_id=null,\n\tstitching_server_pid=null\nfrom\n\ttcv_scene_datas
cd\nwhere\n\tcd.cv_scene_id=cs.idand\n\t(\n\t\t(state_id=7 and date_cr<now()-interval '24 hou"..., params=0x0,
queryEnv=0x0,dest=0x5598892beb00, qc=0x7ffefb55a780) 
>     at ./build/../src/backend/tcop/pquery.c:161
>         queryDesc = 0x5598892beb88
> #16 0x0000559880093421 in PortalRunMulti (portal=portal@entry=0x559889267908, isTopLevel=isTopLevel@entry=true,
setHoldSnapshot=setHoldSnapshot@entry=true,
>     dest=dest@entry=0x5598892beb00, altdest=0x559880538ec0 <donothingDR>, qc=qc@entry=0x7ffefb55a780) at
./build/../src/backend/tcop/pquery.c:1272
>         pstmt = 0x7f2dd001cb00
>         stmtlist_item__state = {l = 0x7f2dd00225c0, i = 0}
>         active_snapshot_set = true
>         stmtlist_item = 0x7f2dd00225d8
> #17 0x000055988009358f in FillPortalStore (portal=portal@entry=0x559889267908, isTopLevel=isTopLevel@entry=true) at
./build/../src/backend/tcop/pquery.c:1021
>         treceiver = 0x5598892beb00
>         qc = {commandTag = CMDTAG_UNKNOWN, nprocessed = 0}
>         __func__ = "FillPortalStore"
> #18 0x000055988009396f in PortalRun (portal=portal@entry=0x559889267908, count=count@entry=9223372036854775807,
isTopLevel=isTopLevel@entry=true,
>     dest=dest@entry=0x7f2dd000be20, altdest=altdest@entry=0x7f2dd000be20, qc=qc@entry=0x7ffefb55a990) at
./build/../src/backend/tcop/pquery.c:760
>         _save_exception_stack = 0x7ffefb55ac70
>         _save_context_stack = 0x0
>         _local_sigjmp_buf = {{__jmpbuf = {94113624389896, 9025151889858365403, 94113630543472, 140733115115920,
139834739965472,94113630543512, 9025151889659135963, 
>               3022814109072099291}, __mask_was_saved = 0, __saved_mask = {__val = {0, 140728898420737,
94114140538477,94113624401432, 94113473390454, 140733115115744, 
>                 94113624389896, 94113473390454, 1, 139834740057536, 94113630543512, 140733115115808, 94113473059350,
140733115115808,2, 140733115115808}}}} 
>         _do_rethrow = <optimized out>
>         result = <optimized out>
>         nprocessed = <optimized out>
>         saveTopTransactionResourceOwner = 0x5598892157f8
>         saveTopTransactionContext = 0x55988927c5c0
>         saveActivePortal = 0x0
>         saveResourceOwner = 0x5598892157f8
>         savePortalContext = 0x0
>         saveMemoryContext = 0x55988927c5c0
>         __func__ = "PortalRun"
> #19 0x000055988008f668 in exec_simple_query (
>     query_string=0x559889170158 "update Tcv_scenes
cs\nset\n\tstate_id=2,\n\tstitching_server_id=null,\n\tstitching_server_pid=null\nfrom\n\ttcv_scene_datas
cd\nwhere\n\tcd.cv_scene_id=cs.idand\n\t(\n\t\t(state_id=7 and date_cr<now()-interval '24 hou"...) at
./build/../src/backend/tcop/postgres.c:1273
>         cmdtaglen = 6
>         snapshot_set = <optimized out>
>         per_parsetree_context = 0x0
>         plantree_list = <optimized out>
>         parsetree = 0x559889845e70
>         commandTag = <optimized out>
>         qc = {commandTag = CMDTAG_UNKNOWN, nprocessed = 0}
>         querytree_list = <optimized out>
>         portal = 0x559889267908
>         receiver = 0x7f2dd000be20
>         format = 0
>         cmdtagname = <optimized out>
>         parsetree_item__state = {l = 0x559889845e98, i = 0}
>         dest = DestRemote
>         oldcontext = 0x55988927c5c0
>         parsetree_list = 0x559889845e98
>         parsetree_item = 0x559889845eb0
>         save_log_statement_stats = false
>         was_logged = false
>         use_implicit_block = false
>         msec_str =
"\340yW\200\230U\000\000Q\000\000\000\000\000\000\000ЫU\373\376\177\000\000\004\000\000\000\000\000\000"
>         __func__ = "exec_simple_query"
> #20 0x000055988009156d in PostgresMain (dbname=<optimized out>, username=<optimized out>) at
./build/../src/backend/tcop/postgres.c:4766
>         query_string = 0x559889170158 "update Tcv_scenes
cs\nset\n\tstate_id=2,\n\tstitching_server_id=null,\n\tstitching_server_pid=null\nfrom\n\ttcv_scene_datas
cd\nwhere\n\tcd.cv_scene_id=cs.idand\n\t(\n\t\t(state_id=7 and date_cr<now()-interval '24 hou"... 
>         firstchar = <optimized out>
>         input_message = {
>           data = 0x559889170158 "update Tcv_scenes
cs\nset\n\tstate_id=2,\n\tstitching_server_id=null,\n\tstitching_server_pid=null\nfrom\n\ttcv_scene_datas
cd\nwhere\n\tcd.cv_scene_id=cs.idand\n\t(\n\t\t(state_id=7 and date_cr<now()-interval '24 hou"..., len = 381, maxlen =
1024,cursor = 381} 
>         local_sigjmp_buf = {{__jmpbuf = {140733115116464, 9025151890000971739, 293935616, 4, 0, 1,
9025151889751410651,3022814102951954395}, __mask_was_saved = 1, 
>             __saved_mask = {__val = {4194304, 143360, 12259252146692762112, 16, 132672, 18446744073709551312, 132656,
0,8290, 139845915581216, 139845914247356, 
>                 94113473250832, 139845913448464, 2047, 18446744073709551312, 94113623012352}}}}
>         send_ready_for_query = false
>         idle_in_transaction_timeout_enabled = false
>         idle_session_timeout_enabled = false
>         __func__ = "PostgresMain"
> #21 0x000055988008ba33 in BackendMain (startup_data=<optimized out>, startup_data_len=<optimized out>) at
./build/../src/backend/tcop/backend_startup.c:124
>         bsdata = <optimized out>
> #22 0x000055987ffe9cfd in postmaster_child_launch (child_type=B_BACKEND, child_slot=6,
startup_data=startup_data@entry=0x7ffefb55ae90,
>     startup_data_len=startup_data_len@entry=24, client_sock=client_sock@entry=0x7ffefb55aeb0) at
./build/../src/backend/postmaster/launch_backend.c:290
>         pid = <optimized out>
> #23 0x000055987ffed802 in BackendStartup (client_sock=0x7ffefb55aeb0) at
./build/../src/backend/postmaster/postmaster.c:3587
>         bn = 0x5598891e6700
>         pid = <optimized out>
>         startup_data = {canAcceptConnections = CAC_OK, socket_created = 813767320273791, fork_started =
813767320273794}
>         cac = <optimized out>
>         bn = <optimized out>
>         pid = <optimized out>
>         startup_data = <optimized out>
>         cac = <optimized out>
>         __func__ = "BackendStartup"
>         __errno_location = <optimized out>
>         save_errno = <optimized out>
>         __errno_location = <optimized out>
>         __errno_location = <optimized out>
> #24 ServerLoop () at ./build/../src/backend/postmaster/postmaster.c:1702
>         s = {sock = 10, raddr = {addr = {ss_family = 1,
>               __ss_padding =
"\2230\"\026\237\276\000\000\000\000\000\000\000\000\v\203\024\211\230U\000\000\000\000\000\000\000\000\000\000
\257U\373\376\177\000\000\360\256U\373\376\177\000\000\000\004\000\000\000\000\000\000\000\203\024\211\230U\000\000\213\331\036\200\230U",
'\000'<repeats 18 times>,
"@\257U\373\376\177\000\000\236(&\200\230U\000\000\000\000\000\000\000\000\000\000\255\226\tj0\177\000",__ss_align =
1},salen = 2}} 
>         i = 0
>         now = <optimized out>
>         last_lockfile_recheck_time = 1760452076
>         last_touch_time = 1760450375
>         events = {{pos = 3, events = 2, fd = 8, user_data = 0x0}, {pos = 0, events = 0, fd = 8, user_data = 0x0},
{pos= -1995336688, events = 21912, fd = 0, 
>             user_data = 0x559880252a37}, {pos = 0, events = 0, fd = -1995336440, user_data = 0x40000000069}, {pos =
0,events = 21912, fd = -1995144437, 
>             user_data = 0x0}, {pos = 126953984, events = 2854329568, fd = -1995328432, user_data = 0x55988058ef60
<errordata>},{pos = -78270480, events = 32766, 
>             fd = -2145478054, user_data = 0xf}, {pos = 0, events = 0, fd = -78270400, user_data = 0x0}, {pos =
-78270400,events = 32766, fd = -1994499072, 
>             user_data = 0x559880252a37}, {pos = -2141748608, events = 21912, fd = 0, user_data = 0x559880234239
<pg_freeaddrinfo_all+73>},{pos = 8, events = 0, 
>             fd = -78270160, user_data = 0x7ffefb55b970}, {pos = 2146491570, events = 21912, fd = 0, user_data =
0x153800000000},{pos = -1994974088, events = 21912, 
>             fd = -78270160, user_data = 0x7ffefb55b08c}, {pos = 1, events = 1, fd = -1994516715, user_data =
0x1891e171c},{pos = -1994499072, events = 21912, 
>             fd = -1994516682, user_data = 0x100000001}, {pos = 1, events = 0, fd = 0, user_data = 0x0}, {pos = 0,
events= 0, fd = 0, user_data = 0x7f0032333435}, { 
>             pos = -2145100672, events = 21912, fd = -1994516568, user_data = 0x5598891e17b2}, {pos = -1994516541,
events= 21912, fd = -1994516531, 
>             user_data = 0x5598891e17de}, {pos = -1994516506, events = 21912, fd = -1994516443, user_data =
0x5598891e182b},{pos = -1994516425, events = 21760, 
>             fd = 1782978392, user_data = 0x6e75722f7261762f}, {pos = 1936683055, events = 1701996404, fd = 795636083,
user_data= 0x3334352e4c515347}, { 
>             pos = -2145058766, events = 21912, fd = -2145015462, user_data = 0x7ffefb55b7a0}, {pos = -2145100583,
events= 21912, fd = 0, user_data = 0x0}, { 
>             pos = -78268464, events = 32766, fd = -2145100753, user_data = 0x7ffefb55b7e0}, {pos = 2382895, events =
0,fd = 0, user_data = 0x0}, {pos = 0, events = 0, 
>             fd = 1782978392, user_data = 0x0}, {pos = 1779089596, events = 32560, fd = 0, user_data =
0x5598891e38b0},{pos = 0, events = 0, fd = 1782978392, 
>             user_data = 0x8}, {pos = 1780423360, events = 32560, fd = 255, user_data = 0xfffffffffffffed0}, {pos = 0,
events= 0, fd = 399, 
>             user_data = 0x5598891e5420}, {pos = 1779088954, events = 32560, fd = -1994499536, user_data = 0x570},
{pos= 0, events = 0, fd = 10, user_data = 0x0}, { 
>             pos = 1780423360, events = 32560, fd = 255, user_data = 0xfffffffffffffed0}, {pos = 1780416464, events =
32560,fd = 8, 
>             user_data = 0x7f306a1effd0 <_IO_file_jumps>}, {pos = 1779092818, events = 32560, fd = 2996, user_data =
0x5598891e5420},{pos = 4096, events = 0, 
>             fd = -78269312, user_data = 0x7f306a1effd0 <_IO_file_jumps>}, {pos = 1778941388, events = 32560, fd = 25,
user_data= 0x21fa}, {pos = 1, events = 0, 
>             fd = 33152, user_data = 0x68}, {pos = 0, events = 0, fd = 1, user_data = 0x100000000}, {pos = 2, events =
17,fd = 0, user_data = 0x3}, {pos = 0, 
>             events = 1, fd = 0, user_data = 0x0}, {pos = 0, events = 0, fd = 0, user_data = 0x0}, {pos = 0, events =
0,fd = 0, user_data = 0x0}, {pos = 0, events = 0, 
>             fd = 0, user_data = 0x0}, {pos = 0, events = 0, fd = -1994501088, user_data = 0x5598891e5420}, {pos = 8,
events= 0, fd = 1780423360, user_data = 0x802}, { 
>             pos = -304, events = 4294967295, fd = 5, user_data = 0x55988024bdd6}, {pos = -2145008860, events = 21912,
fd= 1779092818, user_data = 0x7ffefb55b420}, { 
>             pos = -2145095639, events = 21912, fd = 32768, user_data = 0x9}, {pos = -78269152, events = 32766, fd =
1779329413,user_data = 0x7f0000000000}, {pos = 9, 
>             events = 0, fd = -78269184, user_data = 0x7f306a0e69ff}, {pos = 2346, events = 0, fd = 16318532,
user_data= 0x5598891fed30}, {pos = 126953984, 
>             events = 2854329568, fd = -1994363536, user_data = 0x9}, {pos = -1994396368, events = 21912, fd = -360,
user_data= 0x9}, {pos = -1994396368, 
>             events = 21912, fd = -360, user_data = 0x7f306a0ad3c0 <free+384>}, {pos = 926193527, events = 0, fd =
1760102962,user_data = 0x37349777}, {pos = 0, 
>             events = 0, fd = 0, user_data = 0x9}, {pos = -78269184, events = 32766, fd = -78269152, user_data =
0x5598891fed40},{pos = -2145075754, events = 21912, 
>             fd = -2145008860, user_data = 0x7f306a0e678d <closedir+13>}, {pos = -1995282496, events = 21912, fd =
-2147108231,user_data = 0x5598891fed40}, { 
>             pos = -2145075649, events = 21912, fd = -78268032, user_data = 0x55988005f0c8 <RemovePgTempFiles+312>},
{pos= -2141655518, events = 21912, fd = -78268820, 
>             user_data = 0x7367702f65736162}, {pos = 1952410737, events = 28781, fd = 771766842, user_data =
0x7f306a0abe3a}}
>         nevents = <optimized out>
>         __func__ = "ServerLoop"
> #25 0x000055987ffef110 in PostmasterMain (argc=argc@entry=5, argv=argv@entry=0x5598891172e0) at
./build/../src/backend/postmaster/postmaster.c:1400
>         opt = <optimized out>
>         status = <optimized out>
>         userDoption = <optimized out>
>         listen_addr_saved = true
>         output_config_variable = <optimized out>
>         __func__ = "PostmasterMain"
> #26 0x000055987fce5880 in main (argc=5, argv=0x5598891172e0) at ./build/../src/backend/main/main.c:227
>         do_check_root = <optimized out>
>         dispatch_option = <optimized out>

__
Yuri Zamyatin