Server crash [mysqld got exception 0xc0000005]

[Note] C:\Program Files\MariaDB\bin\mysqld: ready for connections.

Version: '10.2.6-MariaDB'  socket: ''  port: 3306  mariadb.org binary distribution

170530 13:08:32 [ERROR] mysqld got exception 0xc0000005 ;

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: 10.2.6-MariaDB

key_buffer_size=402653184

read_buffer_size=2097152

max_used_connections=11

max_threads=65537

thread_count=9

It is possible that mysqld could use up to 

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 400090 K  bytes of memory

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

Thread pointer: 0x2c57c7de8c8

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...

mysqld.exe!Query_cache_block::headers_len()[sql_cache.cc:843]

mysqld.exe!Query_cache_block::data()[sql_cache.cc:850]

mysqld.exe!Query_cache::insert()[sql_cache.cc:1096]

mysqld.exe!query_cache_insert()[sql_cache.cc:1059]

mysqld.exe!net_real_write()[net_serv.cc:622]

mysqld.exe!net_flush()[net_serv.cc:378]

mysqld.exe!net_write_command()[net_serv.cc:514]

mysqld.exe!cli_advanced_command()[client.c:708]

mysqld.exe!mysql_send_query()[client.c:4061]

mysqld.exe!mysql_real_query()[client.c:4071]

ha_federated.dll!ha_federated::real_query()[ha_federated.cc:3209]

ha_federated.dll!ha_federated::info()[ha_federated.cc:2833]

mysqld.exe!TABLE_LIST::fetch_number_of_rows()[table.cc:7920]

mysqld.exe!make_join_statistics()[sql_select.cc:3802]

mysqld.exe!JOIN::optimize_inner()[sql_select.cc:1508]

mysqld.exe!JOIN::optimize()[sql_select.cc:1085]

mysqld.exe!mysql_select()[sql_select.cc:3652]

mysqld.exe!handle_select()[sql_select.cc:361]

mysqld.exe!execute_sqlcom_select()[sql_parse.cc:6431]

mysqld.exe!mysql_execute_command()[sql_parse.cc:3448]

mysqld.exe!sp_instr_stmt::exec_core()[sp_head.cc:3236]

mysqld.exe!sp_lex_keeper::reset_lex_and_exec_core()[sp_head.cc:2997]

mysqld.exe!sp_instr_stmt::execute()[sp_head.cc:3150]

mysqld.exe!sp_head::execute()[sp_head.cc:1323]

mysqld.exe!sp_head::execute_procedure()[sp_head.cc:2112]

mysqld.exe!do_execute_sp()[sql_parse.cc:2883]

mysqld.exe!mysql_execute_command()[sql_parse.cc:5787]

mysqld.exe!mysql_parse()[sql_parse.cc:7879]

mysqld.exe!dispatch_command()[sql_parse.cc:1814]

mysqld.exe!do_command()[sql_parse.cc:1361]

mysqld.exe!threadpool_process_request()[threadpool_common.cc:346]

mysqld.exe!tp_callback()[threadpool_common.cc:192]

ntdll.dll!TpReleaseWork()

ntdll.dll!TpReleaseWork()

KERNEL32.DLL!BaseThreadInitThunk()

ntdll.dll!RtlUserThreadStart()

Trying to get some variables.

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

Query (0x2c57d791a20): SELECT

		s.`id`,

		s.`active`,

		CAST(AES_DECRYPT(s.`name`,  NAME_CONST('i_name_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `name`,

		CAST(AES_DECRYPT(s.`visitaddress`,  NAME_CONST('i_visitaddress_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `visitaddress`,

		CAST(AES_DECRYPT(s.`visitzipcode`,  NAME_CONST('i_visitzipcode_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `visitzipcode`,

		CAST(AES_DECRYPT(s.`visitcity`,  NAME_CONST('i_visitcity_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `visitcity`,

		CAST(AES_DECRYPT(s.`visitcountry`,  NAME_CONST('i_visitcountry_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `visitcountry`,

		CAST(AES_DECRYPT(s.`invoicename`,  NAME_CONST('i_invoicename_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `invoicename`,

		CAST(AES_DECRYPT(s.`invoiceaddress`,  NAME_CONST('i_invoiceaddress_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `invoiceaddress`,

		CAST(AES_DECRYPT(s.`invoicezipcode`,  NAME_CONST('i_invoicezipcode_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `invoicezipcode`,

		CAST(AES_DECRYPT(s.`invoicecity`,  NAME_CONST('i_invoicecity_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `invoicecity`,

		CAST(AES_DECRYPT(s.`invoicecountry`,  NAME_CONST('i_invoicecountry_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `invoicecountry`,

		CAST(AES_DECRYPT(s.`invoiceemail`,  NAME_CONST('i_invoiceemail_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `invoiceemail`,

		CAST(AES_DECRYPT(s.`phone`,  NAME_CONST('i_phone_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `phone`,

		CAST(AES_DECRYPT(s.`email`,  NAME_CONST('i_email_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `email`,

		s.`reference`,

		CAST(AES_DECRYPT(s.`brincode`,  NAME_CONST('i_brincode_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `brincode`,

		s.`dependancecode`,

		CAST(AES_DECRYPT(s.`lrk`,  NAME_CONST('i_lrk_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `lrk`,

		CAST(AES_DECRYPT(s.`contactperson`,  NAME_CONST('i_contactperson_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `contactperson`,

		s.`isdemo`,

		CAST(AES_DECRYPT(s.`management`,  NAME_CONST('i_management_key',_utf8'EncryptKey' COLLATE 'utf8_general_ci')) AS CHAR CHARACTER SET utf8) AS `management`,

		s.`createdby`,

		s.`dtcreated`,

		s.`lastupdatedby`,

		s.`dtlastupdated`

	FROM `school` s

	WHERE s.id =  NAME_CONST('i_id',1)

Connection ID (thread ID): 71

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=off,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on