210728 22:04:30 [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: 10.5.9-MariaDB-log

key_buffer_size=16777216

read_buffer_size=262144

max_used_connections=31

max_threads=75

thread_count=32

It is possible that mysqld could use up to

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 190955 K bytes of memory

Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x2b01e326e098

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 = 0x2b01ddcc2578 thread_stack 0x40000

/rdsdbbin/mysql/bin/mysqld(my_print_stacktrace+0x2e)[0x5622f39a7b2e]

Printing to addr2line failed

/rdsdbbin/mysql/bin/mysqld(handle_fatal_signal+0x545)[0x5622f3302be5]

/lib64/libpthread.so.0(+0xf100)[0x2b018bffb100]

/rdsdbbin/mysql/bin/mysqld(+0xe9efef)[0x5622f377cfef]

/rdsdbbin/mysql/bin/mysqld(+0x72c63d)[0x5622f300a63d]

/rdsdbbin/mysql/bin/mysqld(+0x72c8f1)[0x5622f300a8f1]

/rdsdbbin/mysql/bin/mysqld(+0xea406e)[0x5622f378206e]

/rdsdbbin/mysql/bin/mysqld(+0xdbd1c1)[0x5622f369b1c1]

/rdsdbbin/mysql/bin/mysqld(_ZN7handler17ha_index_read_mapEPhPKhm16ha_rkey_function+0x268)[0x5622f3307e08]

/rdsdbbin/mysql/bin/mysqld(+0x875568)[0x5622f3153568]

/rdsdbbin/mysql/bin/mysqld(_Z10sub_selectP4JOINP13st_join_tableb+0x187)[0x5622f31463b7]

/rdsdbbin/mysql/bin/mysqld(_ZN4JOIN10exec_innerEv+0xa4e)[0x5622f3167e6e]

/rdsdbbin/mysql/bin/mysqld(_ZN4JOIN4execEv+0x30)[0x5622f31682a0]

/rdsdbbin/mysql/bin/mysqld(_Z12mysql_selectP3THDP10TABLE_LISTR4ListI4ItemEPS4_jP8st_orderS9_S7_S9_yP13select_resultP18st_select_lex_unitP13st_select_lex+0xf8)[0x5622f31665b8]

/rdsdbbin/mysql/bin/mysqld(_Z13handle_selectP3THDP3LEXP13select_resultm+0x141)[0x5622f3166f71]

/rdsdbbin/mysql/bin/mysqld(+0x82eba1)[0x5622f310cba1]

/rdsdbbin/mysql/bin/mysqld(_Z21mysql_execute_commandP3THD+0x103b)[0x5622f31095fb]

/rdsdbbin/mysql/bin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_statebb+0x1cc)[0x5622f310f5ec]

/rdsdbbin/mysql/bin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcjbb+0x13f3)[0x5622f3106393]

/rdsdbbin/mysql/bin/mysqld(_Z10do_commandP3THD+0xdd)[0x5622f3104d4d]

/rdsdbbin/mysql/bin/mysqld(_Z24do_handle_one_connectionP7CONNECTb+0x4c1)[0x5622f31fa081]

/rdsdbbin/mysql/bin/mysqld(handle_one_connection+0x34)[0x5622f31fa3f4]

/rdsdbbin/mysql/bin/mysqld(+0xd2d2cc)[0x5622f360b2cc]

/lib64/libpthread.so.0(+0x7dc5)[0x2b018bff3dc5]

/lib64/libc.so.6(clone+0x6d)[0x2b018c2fec9d]

Trying to get some variables.

Some pointers may be invalid and cause the dump to abort.

Query (0x2b01e3290f70): SELECT * FROM wines LEFT OUTER JOIN appellations AS appellations_1 ON appellations_1.id = wines.appellation_id LEFT OUTER JOIN wine_classifications AS wine_classifications_1 ON wine_classifications_1.id = wines.classification_id LEFT OUTER JOIN wine_locales AS wine_locales_1 ON wine_locales_1.id = wines.origin_locale_id LEFT OUTER JOIN countries AS countries_1 ON countries_1.iso = wine_locales_1.country_code LEFT OUTER JOIN producers AS producers_1 ON producers_1.id = wines.producer_id LEFT OUTER JOIN vineyards AS vineyards_1 ON vineyards_1.id = wines.vineyard_id LEFT OUTER JOIN wine_varietals AS wine_varietals_1 ON wine_varietals_1.id = wines.varietal_id WHERE wines.producer_id = 69665 AND wines.designation = '' AND wines.appellation_id = 2074 AND wines.vineyard_id IS NULL AND wines.classification_id IS NULL AND wines.id != 432120

Connection ID (thread ID): 66

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,not_null_range_scan=off

The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/ contains

information that should help you find out what is causing the crash.

Writing a core file...

Working directory at /rdsdbdata/db

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 unlimited unlimited bytes

Max core file size 0 unlimited bytes

Max resident set unlimited unlimited bytes

Max processes unlimited unlimited processes

Max open files 65535 65535 files

Max locked memory 65536 65536 bytes

Max address space unlimited unlimited bytes

Max file locks unlimited unlimited locks

Max pending signals 7784 7784 signals

Max msgqueue size 819200 819200 bytes

Max nice priority 0 0

Max realtime priority 0 0

Max realtime timeout unlimited unlimited us

Core pattern: /rdsdbdata/tmp/core-%e-%p