Version: '10.4.13-MariaDB'  socket: '/var/lib/mysql/mysql.sock'  port: 3306  MariaDB Server
2020-07-19 18:17:58 0 [Note] /usr/libexec/mysqld (initiated by: unknown): Normal shutdown
2020-07-19 18:17:59 0 [Note] Event Scheduler: Purging the queue. 0 events
2020-07-19 18:17:59 0 [Note] InnoDB: FTS optimize thread exiting.
2020-07-19 18:17:59 0 [Note] InnoDB: Starting shutdown...
2020-07-19 18:17:59 0 [Note] InnoDB: Dumping buffer pool(s) to /var/lib/mysql/ib_buffer_pool
2020-07-19 18:17:59 0 [Note] InnoDB: Buffer pool(s) dump completed at 200719 18:17:59
2020-07-19 18:18:00 0 [Note] InnoDB: Shutdown completed; log sequence number 138137271926; transaction id 549928718
2020-07-19 18:18:00 0 [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1"
2020-07-19 18:18:01 0 [Note] /usr/libexec/mysqld: Shutdown complete

2020-07-19 18:18:01 0 [Note] RocksDB: 2 column families found
2020-07-19 18:18:01 0 [Note] RocksDB: Column Families at start:
2020-07-19 18:18:01 0 [Note]   cf=default
2020-07-19 18:18:01 0 [Note]     write_buffer_size=67108864
2020-07-19 18:18:01 0 [Note]     target_file_size_base=67108864
2020-07-19 18:18:01 0 [Note]   cf=__system__
2020-07-19 18:18:01 0 [Note]     write_buffer_size=67108864
2020-07-19 18:18:01 0 [Note]     target_file_size_base=67108864
2020-07-19 18:18:01 0 [Note] RocksDB: Table_store: loaded DDL data for 0 tables
2020-07-19 18:18:02 0 [Note] RocksDB: global statistics using get_sched_indexer_t indexer
2020-07-19 18:18:02 0 [Note] MyRocks storage engine plugin has been successfully initialized.
2020-07-19 18:18:02 0 [Note] InnoDB: Using Linux native AIO
2020-07-19 18:18:02 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2020-07-19 18:18:02 0 [Note] InnoDB: Uses event mutexes
2020-07-19 18:18:02 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2020-07-19 18:18:02 0 [Note] InnoDB: Number of pools: 1
2020-07-19 18:18:02 0 [Note] InnoDB: Using SSE2 crc32 instructions
2020-07-19 18:18:02 0 [Note] mysqld: O_TMPFILE is not supported on /var/tmp (disabling future attempts)
2020-07-19 18:18:02 0 [Note] InnoDB: Initializing buffer pool, total size = 384M, instances = 1, chunk size = 128M
2020-07-19 18:18:02 0 [Note] InnoDB: Completed initialization of buffer pool
2020-07-19 18:18:02 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2020-07-19 18:18:02 0 [Note] InnoDB: 128 out of 128 rollback segments are active.
2020-07-19 18:18:02 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2020-07-19 18:18:02 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2020-07-19 18:18:02 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2020-07-19 18:18:02 0 [Note] InnoDB: Waiting for purge to start
2020-07-19 18:18:02 0 [Note] InnoDB: 10.4.13 started; log sequence number 138137271926; transaction id 549928717
2020-07-19 18:18:02 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool
2020-07-19 18:18:02 0 [Note] InnoDB: Buffer pool(s) load completed at 200719 18:18:02
2020-07-19 18:18:02 0 [Note] Server socket created on IP: '::'.
2020-07-19 18:18:02 0 [Note] Reading of all Master_info entries succeeded
2020-07-19 18:18:02 0 [Note] Added new Master_info '' to hash table
2020-07-19 18:18:02 0 [Note] /usr/libexec/mysqld: ready for connections.
Version: '10.4.13-MariaDB'  socket: '/var/lib/mysql/mysql.sock'  port: 3306  MariaDB Server
2020-07-19 18:18:17 10 [Warning] Aborted connection 10 to db: 'unconnected' user: 'unauthenticated' host: 'pluto.uddeborg' (This connection closed normally without authentication)
2020-07-19 18:18:18 11 [Warning] Aborted connection 11 to db: 'unconnected' user: 'unauthenticated' host: 'pluto.uddeborg' (This connection closed normally without authentication)
200719 18:21:18 [ERROR] mysqld got signal 11 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.

To report this bug, see https://mariadb.com/kb/en/reporting-bugs

We will try our best to scrape up some info that will hopefully help
diagnose the problem, but since we have already crashed, 
something is definitely wrong and this may fail.

Server version: 10.4.13-MariaDB
key_buffer_size=16777216
read_buffer_size=131072
max_used_connections=10
max_threads=153
thread_count=16
It is possible that mysqld could use up to 
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 353068 K  bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x7f580dc07288
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
stack_bottom = 0x7f5872cb7588 thread_stack 0x49000
/usr/libexec/mysqld(my_print_stacktrace+0x41)[0x55a1a4d488c1]
/usr/libexec/mysqld(handle_fatal_signal+0x4e5)[0x55a1a484dd15]
sigaction.c:0(__restore_rt)[0x7f5873868a90]
/usr/libexec/mysqld(_Z7sortcmpPK6StringS1_PK15charset_info_st+0x12)[0x55a1a46c3902]
/usr/libexec/mysqld(_ZNK26Type_handler_string_result13Item_const_eqEPK10Item_constS2_b+0xd4)[0x55a1a4789b34]
/usr/libexec/mysqld(_ZN4Item15eq_by_collationEPS_bPK15charset_info_st+0x69)[0x55a1a48730d9]
/usr/libexec/mysqld(_ZN9Item_cond14add_key_fieldsEP4JOINPP9KEY_FIELDPjyPP14SARGABLE_PARAM+0x256)[0x55a1a4669d96]
/usr/libexec/mysqld(_ZN13Item_cond_and14add_key_fieldsEP4JOINPP9KEY_FIELDPjyPP14SARGABLE_PARAM+0x52)[0x55a1a4669b02]
/usr/libexec/mysqld(+0x6cbd2c)[0x55a1a466ad2c]
/usr/libexec/mysqld(_ZN4JOIN14optimize_innerEv+0x1bd7)[0x55a1a469a827]
/usr/libexec/mysqld(_ZN4JOIN8optimizeEv+0x9b)[0x55a1a469c2eb]
/usr/libexec/mysqld(_Z12mysql_selectP3THDP10TABLE_LISTjR4ListI4ItemEPS4_jP8st_orderS9_S7_S9_yP13select_resultP18st_select_lex_unitP13st_select_lex+0xe5)[0x55a1a469c4b5]
sql/sql_string.cc:801(sortcmp(String const*, String const*, charset_info_st const*))[0x55a1a469cf6b]
sql/sql_type.cc:7898(Type_handler_string_result::Item_const_eq(Item_const const*, Item_const const*, bool) const)[0x55a1a462fc71]
/usr/libexec/mysqld(_Z21mysql_execute_commandP3THD+0x4c5a)[0x55a1a463bf1a]
sql/item.cc:6330(Item::eq_by_collation(Item*, bool, charset_info_st const*))[0x55a1a4652b38]
sql/sql_select.cc:5725(Item_cond::add_key_fields(JOIN*, KEY_FIELD**, unsigned int*, unsigned long long, SARGABLE_PARAM**))[0x55a1a4652f3a]
sql/sql_list.h:441(Item_cond_and::add_key_fields(JOIN*, KEY_FIELD**, unsigned int*, unsigned long long, SARGABLE_PARAM**))[0x55a1a4653c05]
sql/sql_select.cc:6797(update_ref_and_keys(THD*, st_dynamic_array*, st_join_table*, unsigned int, Item*, unsigned long long, st_select_lex*, SARGABLE_PARAM**))[0x55a1a4653caa]
sql/sql_select.cc:5052(JOIN::optimize_inner())[0x55a1a464040e]
sql/sql_select.cc:1603(JOIN::optimize())[0x55a1a4642520]
sql/sql_parse.cc:6359(execute_sqlcom_select(THD*, TABLE_LIST*))[0x55a1a472d3a2]
sql/sql_parse.cc:3898(mysql_execute_command(THD*))[0x55a1a472d4ff]
pthread_create.c:0(start_thread)[0x7f587385d432]
:0(__GI___clone)[0x7f58730119d3]

Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (0x7f580dc3c0e0): SELECT recordid, category,        (category = NULL) AS catmatch,        (category = '') AS typematch FROM record WHERE type = 11 AND       (category = NULL OR category = ''        OR category = 'Default') ORDER BY catmatch DESC, typematch DESC
Connection ID (thread ID): 14
Status: NOT_KILLED

Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on

The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
information that should help you find out what is causing the crash.
Writing a core file...
Working directory at /var/lib/mysql
Resource Limits:
Limit                     Soft Limit           Hard Limit           Units     
Max cpu time              unlimited            unlimited            seconds   
Max file size             unlimited            unlimited            bytes     
Max data size             unlimited            unlimited            bytes     
Max stack size            8388608              unlimited            bytes     
Max core file size        unlimited            unlimited            bytes     
Max resident set          unlimited            unlimited            bytes     
Max processes             128112               128112               processes 
Max open files            4290                 4290                 files     
Max locked memory         65536                65536                bytes     
Max address space         unlimited            unlimited            bytes     
Max file locks            unlimited            unlimited            locks     
Max pending signals       128112               128112               signals   
Max msgqueue size         819200               819200               bytes     
Max nice priority         0                    0                    
Max realtime priority     0                    0                    
Max realtime timeout      unlimited            unlimited            us        
2020-07-19 18:21:28 0 [Note] RocksDB: 2 column families found
2020-07-19 18:21:28 0 [Note] RocksDB: Column Families at start:
2020-07-19 18:21:28 0 [Note]   cf=default
2020-07-19 18:21:28 0 [Note]     write_buffer_size=67108864
2020-07-19 18:21:28 0 [Note]     target_file_size_base=67108864
2020-07-19 18:21:28 0 [Note]   cf=__system__
2020-07-19 18:21:28 0 [Note]     write_buffer_size=67108864
2020-07-19 18:21:28 0 [Note]     target_file_size_base=67108864
2020-07-19 18:21:29 0 [Note] RocksDB: Table_store: loaded DDL data for 0 tables
2020-07-19 18:21:29 0 [Note] RocksDB: global statistics using get_sched_indexer_t indexer
2020-07-19 18:21:29 0 [Note] MyRocks storage engine plugin has been successfully initialized.
Sun Jul 19 18:21:29 2020 PerconaFT recovery starting in env /var/lib/mysql/
Sun Jul 19 18:21:29 2020 PerconaFT recovery scanning backward from 6164615
Sun Jul 19 18:21:29 2020 PerconaFT recovery bw_end_checkpoint at 6164615 timestamp 1595175662199011 xid 6164611 (bw_newer)
Sun Jul 19 18:21:29 2020 PerconaFT recovery bw_begin_checkpoint at 6164611 timestamp 1595175662198995 (bw_between)
Sun Jul 19 18:21:29 2020 PerconaFT recovery turning around at begin checkpoint 6164611 time 16
Sun Jul 19 18:21:29 2020 PerconaFT recovery starts scanning forward to 6164615 from 6164611 left 4 (fw_between)
Sun Jul 19 18:21:29 2020 PerconaFT recovery closing 2 dictionaries
Sun Jul 19 18:21:29 2020 PerconaFT recovery making a checkpoint
Sun Jul 19 18:21:29 2020 PerconaFT recovery done
2020-07-19 18:21:29 0 [Note] InnoDB: Using Linux native AIO
2020-07-19 18:21:29 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2020-07-19 18:21:29 0 [Note] InnoDB: Uses event mutexes
2020-07-19 18:21:29 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2020-07-19 18:21:29 0 [Note] InnoDB: Number of pools: 1
2020-07-19 18:21:29 0 [Note] InnoDB: Using SSE2 crc32 instructions
2020-07-19 18:21:29 0 [Note] mysqld: O_TMPFILE is not supported on /var/tmp (disabling future attempts)
2020-07-19 18:21:29 0 [Note] InnoDB: Initializing buffer pool, total size = 384M, instances = 1, chunk size = 128M
2020-07-19 18:21:29 0 [Note] InnoDB: Completed initialization of buffer pool
2020-07-19 18:21:29 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2020-07-19 18:21:29 0 [Note] InnoDB: Starting crash recovery from checkpoint LSN=138137275795
2020-07-19 18:21:29 0 [Note] InnoDB: 128 out of 128 rollback segments are active.
2020-07-19 18:21:29 0 [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1"
2020-07-19 18:21:29 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2020-07-19 18:21:29 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2020-07-19 18:21:29 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2020-07-19 18:21:29 0 [Note] InnoDB: Waiting for purge to start
2020-07-19 18:21:29 0 [Note] InnoDB: 10.4.13 started; log sequence number 138137275804; transaction id 549928761
2020-07-19 18:21:29 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool
2020-07-19 18:21:29 0 [Note] Recovering after a crash using tc.log
2020-07-19 18:21:29 0 [Note] Starting crash recovery...
2020-07-19 18:21:29 0 [Note] Crash recovery finished.
2020-07-19 18:21:29 0 [Note] InnoDB: Buffer pool(s) load completed at 200719 18:21:29
2020-07-19 18:21:29 0 [Note] Server socket created on IP: '::'.
2020-07-19 18:21:29 0 [Note] Reading of all Master_info entries succeeded
2020-07-19 18:21:29 0 [Note] Added new Master_info '' to hash table
2020-07-19 18:21:29 0 [Note] /usr/libexec/mysqld: ready for connections.
Version: '10.4.13-MariaDB'  socket: '/var/lib/mysql/mysql.sock'  port: 3306  MariaDB Server
2020-07-19 18:26:29 0 [Note] feedback plugin: report to 'https://mariadb.org/feedback_plugin/post' was sent
2020-07-19 18:26:30 0 [Note] feedback plugin: server replied 'ok'
