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  1. MariaDB Server
  2. MDEV-23179

Assertion `(block->status & (4 | 8)) == 0' failed in pagecache_delete_by_link / Assertion `!hash_link->block || hash_link->block->pins == 0' failed in unlink_hash

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    Description

      Reproducible on 5.5-10.5. The test case is sporadic, please run with --repeat=N

      --source include/have_partition.inc
       
      CREATE TABLE t1 (
        col_bit_key_default_null bit(1),
        col_decimal_unsigned_key decimal(10,0) unsigned,
        col_int int,
        col_float_unsigned_not_null float unsigned NOT NULL,
        col_decimal_unsigned_not_null_key decimal(10,0) unsigned NOT NULL,
        col_int_unsigned_not_null_key int(10) unsigned NOT NULL,
        col_char_255_utf8_key_default_null char(255) CHARACTER SET utf8,
        col_float_unsigned_key_default_null float unsigned,
        col_float_not_null_key float NOT NULL,
        col_int_unsigned int(10) unsigned,
        col_char_255_latin1_key_default_null char(255),
        col_int_not_null_key int NOT NULL,
        col_float_unsigned_not_null_key float unsigned NOT NULL,
        col_bit_not_null bit(1) NOT NULL,
        col_int_key_default_null int,
        col_bit_key bit(1),
        col_decimal_default_null decimal(10,0),
        col_int_not_null int NOT NULL,
        pk int NOT NULL AUTO_INCREMENT,
        col_float_unsigned float unsigned,
        col_char_255_utf8_not_null_key char(255) CHARACTER SET utf8 NOT NULL,
        col_int_unsigned_key int(10) unsigned,
        col_char_255_utf8 char(255) CHARACTER SET utf8,
        col_float_default_null float,
        col_decimal_not_null decimal(10,0) NOT NULL,
        col_bit_default_null bit(1),
        col_float_unsigned_default_null float unsigned,
        col_decimal decimal(10,0),
        col_char_255_latin1_not_null char(255) NOT NULL,
        col_int_default_null int,
        col_int_unsigned_not_null int(10) unsigned NOT NULL,
        col_decimal_not_null_key decimal(10,0) NOT NULL,
        col_bit_not_null_key bit(1) NOT NULL,
        col_int_key int,
        col_bit bit(1),
        col_char_255_latin1_not_null_key char(255) NOT NULL,
        col_decimal_unsigned_not_null decimal(10,0) unsigned NOT NULL,
        col_char_255_latin1 char(255),
        col_char_255_utf8_not_null char(255) CHARACTER SET utf8 NOT NULL,
        col_char_255_latin1_key char(255),
        col_decimal_key_default_null decimal(10,0),
        col_char_255_utf8_default_null char(255) CHARACTER SET utf8,
        col_float_key_default_null float,
        col_decimal_unsigned_key_default_null decimal(10,0) unsigned,
        col_char_255_latin1_default_null char(255),
        col_decimal_unsigned decimal(10,0) unsigned,
        col_float float,
        col_float_key float,
        col_char_255_utf8_key char(255) CHARACTER SET utf8,
        col_decimal_unsigned_default_null decimal(10,0) unsigned,
        col_float_not_null float NOT NULL,
        col_float_unsigned_key float unsigned,
        col_int_unsigned_key_default_null int(10) unsigned,
        col_int_unsigned_default_null int(10) unsigned,
        col_decimal_key decimal(10,0),
        PRIMARY KEY (pk),
        KEY col_bit_key_default_null (col_bit_key_default_null),
        KEY col_decimal_unsigned_key (col_decimal_unsigned_key),
        KEY col_decimal_unsigned_not_null_key (col_decimal_unsigned_not_null_key),
        KEY col_int_unsigned_not_null_key (col_int_unsigned_not_null_key),
        KEY col_char_255_utf8_key_default_null (col_char_255_utf8_key_default_null),
        KEY col_float_unsigned_key_default_null ( col_float_unsigned_key_default_null),
        KEY col_float_not_null_key (col_float_not_null_key),
        KEY col_char_255_latin1_key_default_null (col_char_255_latin1_key_default_null),
        KEY col_int_not_null_key (col_int_not_null_key),
        KEY col_float_unsigned_not_null_key (col_float_unsigned_not_null_key),
        KEY col_int_key_default_null (col_int_key_default_null),
        KEY col_bit_key (col_bit_key),
        KEY col_char_255_utf8_not_null_key (col_char_255_utf8_not_null_key),
        KEY col_bit_not_null_key (col_bit_not_null_key),
        KEY col_char_255_latin1_not_null_key (col_char_255_latin1_not_null_key),
        KEY col_char_255_latin1_key (col_char_255_latin1_key),
        KEY col_decimal_unsigned_key_default_null (col_decimal_unsigned_key_default_null),
        KEY col_char_255_utf8_key (col_char_255_utf8_key),
        KEY col_float_unsigned_key (col_float_unsigned_key),
        KEY col_int_unsigned_key_default_null (col_int_unsigned_key_default_null),
        KEY col_decimal_key (col_decimal_key)
      ) ENGINE=Aria PARTITION BY KEY (pk) PARTITIONS 2;
       
      INSERT INTO t1 VALUES (NULL,2,NULL,2,0,0,'a',4,8,NULL,'a',-316866560,3.93361e18,'',1334312960,'\0',0,0,43,NULL,'a',NULL,'a',0,5,'\0',NULL,NULL,'a',1,7,7,'',1796669440,'','a',0,'a','a',NULL,NULL,'a',5,0,NULL,5,NULL,-4.38285e18,NULL,NULL,4,7,8,NULL,6),('',0,1702625280,2,0,0,'a',4,-4.41465e18,8,'a',2,0,'\0',1306263552,NULL,0,-609222656,49,1.26664e17,'a',9,'a',0,4,'',NULL,7,'a',NULL,6,0,'',-636944384,'\0','a',0,'a','a','a',0,'a',1,0,NULL,NULL,NULL,-2.89947e18,'a',NULL,0,5,NULL,3,NULL),(NULL,NULL,1942355968,0,9,0,'a',2.06997e18,-6.52121e18,0,NULL,9,0,'\0',9,NULL,0,1054474240,57,NULL,'a',NULL,'a',7,0,'',9,0,'a',842203136,3,0,'\0',9,'','a',0,'a','a','a',NULL,'a',NULL,0,'a',4,NULL,NULL,'a',0,-3.00165e18,1,0,NULL,0),(NULL,1,NULL,0,8,0,'a',NULL,2.0224e18,362283008,'a',2135031808,4,'',732889088,'',NULL,6,59,NULL,'a',0,NULL,7,3,'\0',8.85745e18,NULL,'a',1988689920,4,5,'\0',-1650327552,'','a',0,NULL,'a','a',1,NULL,2.16651e18,0,'a',7,-5.56617e18,-7.43263e18,'a',0,2,NULL,NULL,0,0),('',0,1,6,0,1609957376,'a',9,0,3,'a',1631387648,2,'\0',461242368,'\0',NULL,1512767488,93,5.68833e18,'a',0,'a',1.9768e18,9,'\0',6,4,'a',NULL,1,9,'',5,NULL,'a',0,NULL,'a','a',0,'a',1,0,NULL,NULL,NULL,8.75387e16,'a',0,4.34231e18,1,1751449600,0,NULL);
       
      connect (con1, localhost, root,,);
      connect (con2, localhost, root,,);
       
      connection con1;
      --send LOAD INDEX INTO CACHE t1 PARTITION (ALL) IGNORE LEAVES;
       
      connection con2;
      LOAD INDEX INTO CACHE t1 PARTITION (ALL) IGNORE LEAVES;
       
      connection con1;
      --reap
       
      connection default;
      disconnect con1;
      disconnect con2;
       
      drop table t1;
      

      5.5 821a6939087d411f97256d

      #3  <signal handler called>
      #4  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
      #5  0x00007fcf3abad535 in __GI_abort () at abort.c:79
      #6  0x00007fcf3abad40f in __assert_fail_base (fmt=0x7fcf3ad0fee0 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x5589e74ffc38 "(block->status & (4 | 8)) == 0", file=0x5589e74fe408 "//5.5/storage/maria/ma_pagecache.c", line=3698, function=<optimized out>) at assert.c:92
      #7  0x00007fcf3abbb102 in __GI___assert_fail (assertion=0x5589e74ffc38 "(block->status & (4 | 8)) == 0", file=0x5589e74fe408 "//5.5/storage/maria/ma_pagecache.c", line=3698, function=0x5589e7500730 <__PRETTY_FUNCTION__.17370> "pagecache_delete_by_link") at assert.c:101
      #8  0x00005589e709ab1d in pagecache_delete_by_link (pagecache=0x5589e820d780 <maria_pagecache_var>, block=0x7fcf39381540, lock=PAGECACHE_LOCK_LEFT_WRITELOCKED, flush=0 '\000') at //5.5/storage/maria/ma_pagecache.c:3697
      #9  0x00005589e71099ed in maria_preload (info=0x7fcf345080a0, key_map=4194303, ignore_leaves=1 '\001') at //5.5/storage/maria/ma_preload.c:100
      #10 0x00005589e7070c2e in ha_maria::preload_keys (this=0x7fcf34460078, thd=0x7fcf38d60420, check_opt=0x0) at //5.5/storage/maria/ha_maria.cc:1832
      #11 0x00005589e738706f in ha_partition::handle_opt_part (this=0x7fcf34461078, thd=0x7fcf38d60420, check_opt=0x0, part_id=0, flag=6) at //5.5/sql/ha_partition.cc:1106
      #12 0x00005589e7387719 in ha_partition::handle_opt_partitions (this=0x7fcf34461078, thd=0x7fcf38d60420, check_opt=0x0, flag=6) at //5.5/sql/ha_partition.cc:1259
      #13 0x00005589e7386e77 in ha_partition::preload_keys (this=0x7fcf34461078, thd=0x7fcf38d60420, check_opt=0x0) at //5.5/sql/ha_partition.cc:1050
      #14 0x00005589e6e2cd4c in mysql_admin_table (thd=0x7fcf38d60420, tables=0x7fcf3381d1a8, check_opt=0x0, operator_name=0x5589e745b415 "preload_keys", lock_type=TL_READ_NO_INSERT, open_for_modify=false, repair_table_use_frm=false, extra_open_options=0, prepare_func=0x0, operator_func=&virtual table offset 512, view_operator_func=0x0) at //5.5/sql/sql_admin.cc:682
      #15 0x00005589e6e2e112 in mysql_preload_keys (thd=0x7fcf38d60420, tables=0x7fcf3381d1a8) at //5.5/sql/sql_admin.cc:1064
      #16 0x00005589e6d1dc38 in mysql_execute_command (thd=0x7fcf38d60420) at //5.5/sql/sql_parse.cc:2350
      #17 0x00005589e6d2738f in mysql_parse (thd=0x7fcf38d60420, rawbuf=0x7fcf3381d078 "LOAD INDEX INTO CACHE t1 PARTITION (ALL) IGNORE LEAVES", length=54, parser_state=0x7fcf3aaa1e50) at //5.5/sql/sql_parse.cc:5928
      #18 0x00005589e6d1acb2 in dispatch_command (command=COM_QUERY, thd=0x7fcf38d60420, packet=0x7fcf38d666e1 "", packet_length=54) at //5.5/sql/sql_parse.cc:1067
      #19 0x00005589e6d19ec7 in do_command (thd=0x7fcf38d60420) at //5.5/sql/sql_parse.cc:793
      #20 0x00005589e6e1eb2b in do_handle_one_connection (thd_arg=0x7fcf38d60420) at //5.5/sql/sql_connect.cc:1268
      #21 0x00005589e6e1e8a4 in handle_one_connection (arg=0x7fcf38d60420) at //5.5/sql/sql_connect.cc:1184
      #22 0x00005589e719f171 in pfs_spawn_thread (arg=0x7fcf3821c960) at //5.5/storage/perfschema/pfs.cc:1015
      #23 0x00007fcf3b597fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
      #24 0x00007fcf3ac844cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
      

      Nearly the same test case, but this one crashes also on non-debug build. (maybe as it is sporadic - it was just a matter of luck, that the first case did not crashed for me on non-debug build).

      --source include/have_partition.inc
       
      CREATE TABLE t1 (
        col_bit_key_default_null bit(1),
        col_decimal_unsigned_key decimal(10,0) unsigned,
        col_int int,
        col_float_unsigned_not_null float unsigned NOT NULL,
        col_decimal_unsigned_not_null_key decimal(10,0) unsigned NOT NULL,
        col_int_unsigned_not_null_key int(10) unsigned NOT NULL,
        col_char_255_utf8_key_default_null char(255) CHARACTER SET utf8,
        col_float_unsigned_key_default_null float unsigned,
        col_float_not_null_key float NOT NULL,
        col_int_unsigned int(10) unsigned,
        col_char_255_latin1_key_default_null char(255),
        col_int_not_null_key int NOT NULL,
        col_float_unsigned_not_null_key float unsigned NOT NULL,
        col_bit_not_null bit(1) NOT NULL,
        col_int_key_default_null int,
        col_bit_key bit(1),
        col_decimal_default_null decimal(10,0),
        col_int_not_null int NOT NULL,
        pk int NOT NULL AUTO_INCREMENT,
        col_float_unsigned float unsigned,
        col_char_255_utf8_not_null_key char(255) CHARACTER SET utf8 NOT NULL,
        col_int_unsigned_key int(10) unsigned,
        col_char_255_utf8 char(255) CHARACTER SET utf8,
        col_float_default_null float,
        col_decimal_not_null decimal(10,0) NOT NULL,
        col_bit_default_null bit(1),
        col_float_unsigned_default_null float unsigned,
        col_decimal decimal(10,0),
        col_char_255_latin1_not_null char(255) NOT NULL,
        col_int_default_null int,
        col_int_unsigned_not_null int(10) unsigned NOT NULL,
        col_decimal_not_null_key decimal(10,0) NOT NULL,
        col_bit_not_null_key bit(1) NOT NULL,
        col_int_key int,
        col_bit bit(1),
        col_char_255_latin1_not_null_key char(255) NOT NULL,
        col_decimal_unsigned_not_null decimal(10,0) unsigned NOT NULL,
        col_char_255_latin1 char(255),
        col_char_255_utf8_not_null char(255) CHARACTER SET utf8 NOT NULL,
        col_char_255_latin1_key char(255),
        col_decimal_key_default_null decimal(10,0),
        col_char_255_utf8_default_null char(255) CHARACTER SET utf8,
        col_float_key_default_null float,
        col_decimal_unsigned_key_default_null decimal(10,0) unsigned,
        col_char_255_latin1_default_null char(255),
        col_decimal_unsigned decimal(10,0) unsigned,
        col_float float,
        col_float_key float,
        col_char_255_utf8_key char(255) CHARACTER SET utf8,
        col_decimal_unsigned_default_null decimal(10,0) unsigned,
        col_float_not_null float NOT NULL,
        col_float_unsigned_key float unsigned,
        col_int_unsigned_key_default_null int(10) unsigned,
        col_int_unsigned_default_null int(10) unsigned,
        col_decimal_key decimal(10,0),
        PRIMARY KEY (pk),
        KEY col_bit_key_default_null (col_bit_key_default_null),
        KEY col_decimal_unsigned_key (col_decimal_unsigned_key),
        KEY col_decimal_unsigned_not_null_key (col_decimal_unsigned_not_null_key),
        KEY col_int_unsigned_not_null_key (col_int_unsigned_not_null_key),
        KEY col_char_255_utf8_key_default_null (col_char_255_utf8_key_default_null),
        KEY col_float_unsigned_key_default_null ( col_float_unsigned_key_default_null),
        KEY col_float_not_null_key (col_float_not_null_key),
        KEY col_char_255_latin1_key_default_null (col_char_255_latin1_key_default_null),
        KEY col_int_not_null_key (col_int_not_null_key),
        KEY col_float_unsigned_not_null_key (col_float_unsigned_not_null_key),
        KEY col_int_key_default_null (col_int_key_default_null),
        KEY col_bit_key (col_bit_key),
        KEY col_char_255_utf8_not_null_key (col_char_255_utf8_not_null_key),
        KEY col_bit_not_null_key (col_bit_not_null_key),
        KEY col_char_255_latin1_not_null_key (col_char_255_latin1_not_null_key),
        KEY col_char_255_latin1_key (col_char_255_latin1_key),
        KEY col_decimal_unsigned_key_default_null (col_decimal_unsigned_key_default_null),
        KEY col_char_255_utf8_key (col_char_255_utf8_key),
        KEY col_float_unsigned_key (col_float_unsigned_key),
        KEY col_int_unsigned_key_default_null (col_int_unsigned_key_default_null),
        KEY col_decimal_key (col_decimal_key)
      ) ENGINE=Aria PARTITION BY KEY (pk) PARTITIONS 2;
       
      INSERT INTO t1 VALUES (NULL,2,NULL,2,0,0,'a',4,8,NULL,'a',-316866560,3.93361e18,'',1334312960,'\0',0,0,43,NULL,'a',NULL,'a',0,5,'\0',NULL,NULL,'a',1,7,7,'',1796669440,'','a',0,'a','a',NULL,NULL,'a',5,0,NULL,5,NULL,-4.38285e18,NULL,NULL,4,7,8,NULL,6),('',0,1702625280,2,0,0,'a',4,-4.41465e18,8,'a',2,0,'\0',1306263552,NULL,0,-609222656,49,1.26664e17,'a',9,'a',0,4,'',NULL,7,'a',NULL,6,0,'',-636944384,'\0','a',0,'a','a','a',0,'a',1,0,NULL,NULL,NULL,-2.89947e18,'a',NULL,0,5,NULL,3,NULL),(NULL,NULL,1942355968,0,9,0,'a',2.06997e18,-6.52121e18,0,NULL,9,0,'\0',9,NULL,0,1054474240,57,NULL,'a',NULL,'a',7,0,'',9,0,'a',842203136,3,0,'\0',9,'','a',0,'a','a','a',NULL,'a',NULL,0,'a',4,NULL,NULL,'a',0,-3.00165e18,1,0,NULL,0),(NULL,1,NULL,0,8,0,'a',NULL,2.0224e18,362283008,'a',2135031808,4,'',732889088,'',NULL,6,59,NULL,'a',0,NULL,7,3,'\0',8.85745e18,NULL,'a',1988689920,4,5,'\0',-1650327552,'','a',0,NULL,'a','a',1,NULL,2.16651e18,0,'a',7,-5.56617e18,-7.43263e18,'a',0,2,NULL,NULL,0,0),('',0,1,6,0,1609957376,'a',9,0,3,'a',1631387648,2,'\0',461242368,'\0',NULL,1512767488,93,5.68833e18,'a',0,'a',1.9768e18,9,'\0',6,4,'a',NULL,1,9,'',5,NULL,'a',0,NULL,'a','a',0,'a',1,0,NULL,NULL,NULL,8.75387e16,'a',0,4.34231e18,1,1751449600,0,NULL);
       
      connect (con1, localhost, root,,);
      connect (con2, localhost, root,,);
       
      connection con1;
      --send LOAD INDEX INTO CACHE t1 PARTITION (ALL) IGNORE LEAVES;
       
      connection con2;
      LOAD INDEX INTO CACHE t1 PARTITION (ALL);
       
      connection con1;
      --reap
       
      connection default;
      disconnect con1;
      disconnect con2;
       
      drop table t1;
      

      10.1 7473e1841c630d86f1873a2a

      mysqld: /10.1/storage/maria/ma_pagecache.c:1644: unlink_hash: Assertion `!hash_link->block || hash_link->block->pins == 0' failed.
      200715 15:06:31 [ERROR] mysqld got signal 6 ;
      Server version: 10.1.46-MariaDB-debug
       
      linux/raise.c:51(__GI_raise)[0x7fb724cd27bb]
      stdlib/abort.c:81(__GI_abort)[0x7fb724cbd535]
      intl/loadmsgcat.c:1177(_nl_load_domain)[0x7fb724cbd40f]
      /lib/x86_64-linux-gnu/libc.so.6(+0x30102)[0x7fb724ccb102]
      maria/ma_pagecache.c:1646(unlink_hash)[0x55557e2d822b]
      maria/ma_pagecache.c:4279(free_block)[0x55557e2def4c]
      maria/ma_pagecache.c:3659(pagecache_delete_internal)[0x55557e2dda0d]
      maria/ma_pagecache.c:3735(pagecache_delete_by_link)[0x55557e2ddc89]
      maria/ma_preload.c:100(maria_preload)[0x55557e35138d]
      maria/ha_maria.cc:1855(ha_maria::preload_keys(THD*, st_ha_check_opt*))[0x55557e2b4b4e]
      sql/ha_partition.cc:1249(ha_partition::handle_opt_part(THD*, st_ha_check_opt*, unsigned int, unsigned int))[0x55557e7037b4]
      sql/ha_partition.cc:1402(ha_partition::handle_opt_partitions(THD*, st_ha_check_opt*, unsigned int))[0x55557e703ec2]
      sql/ha_partition.cc:1193(ha_partition::preload_keys(THD*, st_ha_check_opt*))[0x55557e7035a6]
      sql/sql_admin.cc:817(mysql_admin_table(THD*, TABLE_LIST*, st_ha_check_opt*, char const*, thr_lock_type, bool, bool, unsigned int, int (*)(THD*, TABLE_LIST*, st_ha_check_opt*), int (handler::*)(THD*, st_ha_check_opt*), int (*)(THD*, TABLE_LIST*, st_ha_check_opt*)))[0x55557e0060b0]
      sql/sql_admin.cc:1231(mysql_preload_keys(THD*, TABLE_LIST*))[0x55557e0078fd]
      sql/sql_parse.cc:3160(mysql_execute_command(THD*))[0x55557debd71e]
      sql/sql_parse.cc:7200(mysql_parse(THD*, char*, unsigned int, Parser_state*))[0x55557dec9f1e]
      sql/sql_parse.cc:1493(dispatch_command(enum_server_command, THD*, char*, unsigned int))[0x55557deb91d8]
      sql/sql_parse.cc:1123(do_command(THD*))[0x55557deb80c4]
      sql/sql_connect.cc:1331(do_handle_one_connection(THD*))[0x55557dff4b37]
      sql/sql_connect.cc:1243(handle_one_connection)[0x55557dff4872]
      perfschema/pfs.cc:1870(pfs_spawn_thread)[0x55557e40d140]
      nptl/pthread_create.c:487(start_thread)[0x7fb7256cffa3]
      x86_64/clone.S:97(clone)[0x7fb724d944cf]
       
      Query (0x7fb718e13308): LOAD INDEX INTO CACHE t1 PARTITION (ALL) IGNORE LEAVES
      
      

      on non-debug build:

      10.5 e67daa5653490074850b

      Version: '10.5.5-MariaDB-log'  
      200715 14:54:39 [ERROR] mysqld got signal 11 ;
       
      Server version: 10.5.5-MariaDB-log
      /10.5/sql/mariadbd(handle_fatal_signal+0x485)[0x55f18e5f63d5]
      ??:0(__restore_rt)[0x7fb6f6fe5730]
      /10.5/sql/mariadbd(+0xae4f41)[0x55f18e7b8f41]
      maria/ma_pagecache.c:1673(unlink_hash)[0x55f18e7b9959]
      maria/ma_pagecache.c:4658(free_block)[0x55f18e7ba626]
      maria/ma_pagecache.c:5166(flush_pagecache_blocks_int)[0x55f18e7be503]
      maria/ma_pagecache.c:1100(dec_counter_for_resize_op)[0x55f18e802306]
      maria/ma_preload.c:62(maria_preload)[0x55f18e7a61d5]
      maria/ha_maria.cc:1860(ha_maria::preload_keys(THD*, st_ha_check_opt*))[0x55f18e822ca4]
      sql/ha_partition.cc:1343(ha_partition::handle_opt_part(THD*, st_ha_check_opt*, unsigned int, unsigned int))[0x55f18e822dd4]
      sql/ha_partition.cc:1496(ha_partition::handle_opt_partitions(THD*, st_ha_check_opt*, unsigned int))[0x55f18e5069cb]
      sql/sql_admin.cc:782(mysql_admin_table(THD*, TABLE_LIST*, st_ha_check_opt*, char const*, thr_lock_type, bool, bool, unsigned int, int (*)(THD*, TABLE_LIST*, st_ha_check_opt*), int (handler::*)(THD*, st_ha_check_opt*), int (*)(THD*, TABLE_LIST*, st_ha_check_opt*)) [clone .constprop.218])[0x55f18e508afa]
      sql/sql_admin.cc:1299(mysql_preload_keys(THD*, TABLE_LIST*))[0x55f18e416d2a]
      sql/sql_parse.cc:4073(mysql_execute_command(THD*))[0x55f18e409432]
      sql/sql_parse.cc:8010(mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool))[0x55f18e413f77]
      sql/sql_parse.cc:1869(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool))[0x55f18e414ecd]
      sql/sql_parse.cc:1347(do_command(THD*))[0x55f18e4fadd0]
      sql/sql_connect.cc:1411(do_handle_one_connection(CONNECT*, bool))[0x55f18e4fb19d]
      sql/sql_connect.cc:1313(handle_one_connection)[0x55f18e824d9b]
      nptl/pthread_create.c:487(start_thread)[0x7fb6f6fdafa3]
      x86_64/clone.S:97(clone)[0x7fb6f65e34cf]
       
      Query (0x7fb6d8010220): LOAD INDEX INTO CACHE t1 PARTITION (ALL)
      

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            monty Michael Widenius
            alice Alice Sherepa
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