150623 12:31:47 [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 http://kb.askmonty.org/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: 10.0.20-MariaDB-log
key_buffer_size=2097152000
read_buffer_size=6291456
max_used_connections=22
max_threads=92
thread_count=9
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads =
3180295 K  bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x0x7f523b81c008
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 = 0x4b1410a0 thread_stack 0x48000
mysys/stacktrace.c:247(my_print_stacktrace)[0xbcb2ee]
sql/signal_handler.cc:153(handle_fatal_signal)[0x71fa8c]
/lib/libpthread.so.0[0x7f52ccbe98f0]
sql/field.h:703(Field::set_notnull(long long))[0x610c70]
sql/sql_statistics.cc:533(Stat_table::update_stat())[0x60dd68]
sql/sql_admin.cc:759(mysql_admin_table)[0x67adc1]
sql/sql_admin.cc:1183(Sql_cmd_analyze_table::execute(THD*))[0x67c66c]
sql/sql_parse.cc:5095(mysql_execute_command(THD*))[0x5986c2]
sql/sql_parse.cc:6529(mysql_parse(THD*, char*, unsigned int,
Parser_state*))[0x59fc86]
sql/sql_parse.cc:1310(dispatch_command(enum_server_command, THD*,
char*, unsigned int))[0x5a1bb7]
sql/sql_parse.cc:999(do_command(THD*))[0x5a22f9]
sql/sql_connect.cc:1378(do_handle_one_connection(THD*))[0x66c7d4]
sql/sql_connect.cc:1295(handle_one_connection)[0x66c912]
/lib/libpthread.so.0[0x7f52ccbe1fe7]
/lib/libc.so.6(clone+0x6d)[0x7f52cbb822bd]

Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (0x7f5190884020): is an invalid pointer
Connection ID (thread ID): 304
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

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.

[mysqld]
skip-name-resolve
open_files_limit =4096
default-storage-engine=MYISAM
# it's mariadb 10.0.20, /opt/mariadb directory = tar -zxf mariadb
ledir=/opt/mariadb/bin/
tmpdir=/tmp/mysql
mysqld                  = /opt/mariadb/bin/mysqld_safe
socket                  = /tmp/mysql.sock
port                    = 3307
pid-file                = /home/mysql/pid/local.pid
datadir                 = /home/mysql/data/local/
language                = /opt/mariadb/share/portuguese
slow_query_log          = 1
slow_query_log_file     = /home/mysql/log/local.slow_query.log
log-error               = /home/mysql/log/local.error.log
#log-output             = FILE
innodb_use_native_aio=0

long_query_time         = 2
max_connections         = 90
key_buffer              = 2000M
aria_pagecache_buffer_size = 2500M
table_cache             = 350
#table_definition_cache = 350
sort_buffer_size        = 6M
read_buffer_size        = 6M
read_rnd_buffer_size    = 16M
myisam_sort_buffer_size = 128M
tmp_table_size          = 8M
max_allowed_packet      = 16M
net_buffer_length       = 16K
wait_timeout            = 10
sql_mode                = ALLOW_INVALID_DATES,PIPES_AS_CONCAT
concurrent_insert       = 2
div_precision_increment = 8
query_cache_size        = 128M
query_cache_limit       = 8M
query_cache_type        = 1
query_cache_min_res_unit= 256
thread_cache_size       = 20
myisam-recover          = BACKUP,FORCE,QUICK

Tables_in_mysql (%stat%)
column_stats
index_stats
innodb_index_stats
innodb_table_stats
table_stats

CREATE TABLE `column_stats` (
  `db_name` varchar(64) COLLATE utf8_bin NOT NULL,
  `table_name` varchar(64) COLLATE utf8_bin NOT NULL,
  `column_name` varchar(64) COLLATE utf8_bin NOT NULL,
  `min_value` varchar(255) COLLATE utf8_bin DEFAULT NULL,
  `max_value` varchar(255) COLLATE utf8_bin DEFAULT NULL,
  `nulls_ratio` decimal(12,4) DEFAULT NULL,
  `avg_length` decimal(12,4) DEFAULT NULL,
  `avg_frequency` decimal(12,4) DEFAULT NULL,
  PRIMARY KEY (`db_name`,`table_name`,`column_name`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Statistics on Columns';
CREATE TABLE `index_stats` (
  `db_name` varchar(64) COLLATE utf8_bin NOT NULL,
  `table_name` varchar(64) COLLATE utf8_bin NOT NULL,
  `index_name` varchar(64) COLLATE utf8_bin NOT NULL,
  `prefix_arity` int(11) unsigned NOT NULL,
  `avg_frequency` decimal(12,4) DEFAULT NULL,
  PRIMARY KEY (`db_name`,`table_name`,`index_name`,`prefix_arity`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Statistics on Indexes';
CREATE TABLE `table_stats` (
  `db_name` varchar(64) COLLATE utf8_bin NOT NULL,
  `table_name` varchar(64) COLLATE utf8_bin NOT NULL,
  `cardinality` bigint(21) unsigned DEFAULT NULL,
  PRIMARY KEY (`db_name`,`table_name`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Statistics on Tables';