SIGSEGV in spider_free_mem from ha_spider::open on INSERT

INSTALL PLUGIN spider SONAME 'ha_spider.so';

SET @@session.spider_same_server_link = ON; 

use test;

GRANT ALL PRIVILEGES ON *.* TO 'spinne'@'127.0.0.1'  IDENTIFIED BY 'password';

CREATE SERVER IF NOT EXISTS data1

FOREIGN DATA WRAPPER mysql

OPTIONS(

HOST '127.0.0.1',

DATABASE 'test',

USER 'spinne',

PORT 16000,

PASSWORD 'password'

);

CREATE TABLE IF NOT EXISTS `spider_tab` (

  `col1`int,

  `col2`int,

  PRIMARY KEY (`col1`)

) ENGINE=SPIDER DEFAULT CHARSET=utf8 COMMENT='table "spider_data_tab"'

PARTITION BY LIST COLUMNS(`col1`)

(PARTITION `pt1` DEFAULT COMMENT = 'srv "data1"' ENGINE = SPIDER);

CREATE TABLE IF NOT EXISTS `spider_data_tab` (

  `col1` int,

  `col2` int,

  PRIMARY KEY (`col1`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8;

insert into `spider_data_tab` VALUES (1,999), (2,999);

insert into spider_tab select col1+10, col2 from spider_tab;

Version: '10.5.10-MariaDB-debug-log'  socket: '/home/vagrant/repo/mariadb-server/bld/mysql-test/var/tmp/mysqld.1.1.sock'  port: 16020  Source distribution

210716  6:47:18 [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: 10.5.10-MariaDB-debug-log

key_buffer_size=1048576

read_buffer_size=131072

max_used_connections=1

max_threads=153

thread_count=22

It is possible that mysqld could use up to

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 63751 K  bytes of memory

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

Thread pointer: 0x7f8830000db8

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 = 0x7f885ee67d98 thread_stack 0x49000

mysys/stacktrace.c:212(my_print_stacktrace)[0x55b006c91891]

sql/signal_handler.cc:224(handle_fatal_signal)[0x55b0063668f2]

??:0(__restore_rt)[0x7f88c03c43c0]

spider/spd_malloc.cc:185(spider_free_mem(st_spider_transaction*, void*, unsigned long))[0x7f88bf94db66]

spider/ha_spider.cc:669(ha_spider::open(char const*, int, unsigned int))[0x7f88bf95df62]

sql/handler.cc:2983(handler::ha_open(TABLE*, char const*, int, unsigned int, st_mem_root*, List<String>*))[0x55b0063708a6]

sql/ha_partition.cc:8641(ha_partition::open_read_partitions(char*, unsigned long))[0x55b0066bb33c]

sql/ha_partition.cc:3714(ha_partition::open(char const*, int, unsigned int))[0x55b0066ad1d2]

sql/handler.cc:2983(handler::ha_open(TABLE*, char const*, int, unsigned int, st_mem_root*, List<String>*))[0x55b0063708a6]

sql/table.cc:4218(open_table_from_share(THD*, TABLE_SHARE*, st_mysql_const_lex_string const*, unsigned int, unsigned int, unsigned int, TABLE*, bool, List<String>*))[0x55b0061476c3]

sql/sql_base.cc:2001(open_table(THD*, TABLE_LIST*, Open_table_context*))[0x55b005f4f5b9]

sql/sql_base.cc:3801(open_and_process_table(THD*, TABLE_LIST*, unsigned int*, unsigned int, Prelocking_strategy*, bool, Open_table_context*))[0x55b005f534c4]

sql/sql_base.cc:4275(open_tables(THD*, DDL_options_st const&, TABLE_LIST**, unsigned int*, unsigned int, Prelocking_strategy*))[0x55b005f5478c]

sql/sql_base.cc:5211(open_and_lock_tables(THD*, DDL_options_st const&, TABLE_LIST*, bool, unsigned int, Prelocking_strategy*))[0x55b005f56731]

sql/sql_base.h:507(open_and_lock_tables(THD*, TABLE_LIST*, bool, unsigned int))[0x55b005f0c049]

sql/sql_parse.cc:4712(mysql_execute_command(THD*))[0x55b0060003e8]

sql/sql_parse.cc:8099(mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool))[0x55b00600b78a]

sql/sql_parse.cc:1894(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool))[0x55b005ff7701]

sql/sql_parse.cc:1370(do_command(THD*))[0x55b005ff5ef3]

sql/sql_connect.cc:1410(do_handle_one_connection(CONNECT*, bool))[0x55b0061a5aff]

sql/sql_connect.cc:1314(handle_one_connection)[0x55b0061a5862]

perfschema/pfs.cc:2203(pfs_spawn_thread)[0x55b0066c93bb]

??:0(start_thread)[0x7f88c03b8609]

??:0(clone)[0x7f88bff8b293]

Trying to get some variables.

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

Query (0x7f8830013f20): insert into spider_tab select col1+10, col2 from spider_tab

Connection ID (thread ID): 24

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