crash of postgresql 11.2-2PGDG.rhel7 in StartupXLOG () at xlog.c:6355

Dear PostgreSQL developers,

I have automatic logging of segfaults in my lab. I have found a few
crashes of postgresql. Unfortunatelly, I am not able to dig more logs
or run any query on that machine. I believe, it may help find you some
issue.

version='postgresql 11.2-2PGDG.rhel7'
os='CentOS.7.1810'
signal='6'
pid='31494'
uid='26'
gid='26'
time='1556199867'
exe='postmaster'
exefull='!usr!pgsql-11!bin!postgres'
pid_orig='31494'
tid='31494'

2019-04-25T15:45:14+0200 Core dump saved

[New LWP 31494]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `postgres: startup recovering
0000000100000000000000EC'.
Program terminated with signal 6, Aborted.
#0 0x00007f8c02a3e207 in raise () from /lib64/libc.so.6

Thread 1 (Thread 0x7f8c053908c0 (LWP 31494)):
#0 0x00007f8c02a3e207 in raise () from /lib64/libc.so.6
No symbol table info available.
#1 0x00007f8c02a3f8f8 in abort () from /lib64/libc.so.6
No symbol table info available.
#2 0x000000000084d2cb in errfinish (dummy=<optimized out>) at
elog.c:555
edata = 0xd44560 <errordata>
elevel = 22
oldcontext = 0x2b713a0
econtext = 0x0
__func__ = "errfinish"
#3 0x000000000050580c in StartupXLOG () at xlog.c:6355
Insert = <optimized out>
checkPoint = <optimized out>
wasShutdown = <optimized out>
reachedStopPoint = <optimized out>
haveBackupLabel = <optimized out>
haveTblspcMap = <optimized out>
RecPtr = <optimized out>
checkPointLoc = <optimized out>
EndOfLog = <optimized out>
EndOfLogTLI = <optimized out>
PrevTimeLineID = <optimized out>
record = <optimized out>
oldestActiveXID = <optimized out>
backupEndRequired = <optimized out>
backupFromStandby = <optimized out>
dbstate_at_startup = <optimized out>
xlogreader = <optimized out>
private = {emode = 15, fetching_ckpt = true, randAccess = true}
fast_promoted = false
st = {st_dev = 18171478800, st_ino = 18184179600, st_nlink =
18202928400, st_mode = 1035760016, st_uid = 4, st_gid = 1054508816,
__pad0 = 4, st_rdev = 18247683600, st_size = 18265827600, st_blksize =
18279133200, st_blocks = 18297277200, st_atim = {tv_sec = 18310582800,
tv_nsec = 18328726800}, st_mtim = {tv_sec = 18342032400, tv_nsec =
18360781200}, st_ctim = {tv_sec = 18373482000, tv_nsec = 18392230800},
__unused = {18404931600, 18423680400, 18436986000}}
__func__ = "StartupXLOG"
#4 0x00000000006d82b1 in StartupProcessMain () at startup.c:211
No locals.
#5 0x0000000000512275 in AuxiliaryProcessMain (argc=argc(at)entry=2,
argv=argv(at)entry=0x7ffe5af831e0) at bootstrap.c:441
progname = 0x89a46c "postgres"
flag = <optimized out>
userDoption = 0x0
__func__ = "AuxiliaryProcessMain"
#6 0x00000000006d53a0 in StartChildProcess (type=StartupProcess) at
postmaster.c:5331
pid = <optimized out>
av = {0x89a46c "postgres", 0x7ffe5af83230 "-x2", 0x0, 0x874c61
<MemoryContextResetOnly+49> "\306C\004\001[\303f\017\037\204", 0xd45650
<context_freelists+16> "\003", 0x86edf8 <AllocSetDelete+184>
"\351p\377\377\377\017\037", 0x0, 0x2bbc8f8 "\336", 0x2bbbf50 "\325",
0x2b71300 "0\023\267\002"}
ac = 2
typebuf = "-
x2\000\000\000\000\000\000q\264\370\ai\350\v\003\000\000\000\000\000\00
0\000\000\023\267\002\000\000\000"
#7 0x00000000006d7b75 in PostmasterMain (argc=argc(at)entry=3,
argv=argv(at)entry=0x2b71300) at postmaster.c:1371
opt = <optimized out>
status = <optimized out>
userDoption = <optimized out>
listen_addr_saved = true
i = <optimized out>
output_config_variable = <optimized out>
__func__ = "PostmasterMain"
#8 0x000000000048124f in main (argc=3, argv=0x2b71300) at main.c:228
No locals.

regards,
--
Jozef Mlich <jozef(dot)mlich(at)greycortex(dot)com>