Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Fixed
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10.2(EOL)
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None
Description
Found here http://buildbot.askmonty.org/buildbot/builders/kvm-asan/builds/1368/steps/mtr_nm/logs/stdio
main.func_gconcat w1 [ fail ]
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Test ended at 2019-05-28 15:06:24
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CURRENT_TEST: main.func_gconcat
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mysqltest: At line 880: query 'SELECT GROUP_CONCAT(concat(seq/1.1), concat(seq/1.1), concat(seq/1.1), concat(seq/1.1), concat(seq/1.1), concat(seq/1.1), concat(seq/1.1), concat(seq/1.1) ORDER BY 2,1,3,4,6,5,8,7) AS c
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FROM seq_1_to_200000' failed: 2013: Lost connection to MySQL server during query
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The result from queries just before the failure was:
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< snip >
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Warning 1260 Row 3 was cut by GROUP_CONCAT()
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INSERT INTO t1 VALUES (REPEAT('a', 499999), 3), (REPEAT('b', 500000), 4);
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SELECT LENGTH(GROUP_CONCAT(f1 ORDER BY f2)) FROM t1 GROUP BY f2;
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LENGTH(GROUP_CONCAT(f1 ORDER BY f2))
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499999
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499999
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499999
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499999
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499999
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Warnings:
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Warning 1260 Row 1 was cut by GROUP_CONCAT()
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Warning 1260 Row 2 was cut by GROUP_CONCAT()
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Warning 1260 Row 3 was cut by GROUP_CONCAT()
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Warning 1260 Row 5 was cut by GROUP_CONCAT()
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DROP TABLE t1;
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SET group_concat_max_len= DEFAULT;
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set session group_concat_max_len=1024;
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set max_session_mem_used=16*1024*1024;
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SELECT GROUP_CONCAT(concat(seq/1.1), concat(seq/1.1), concat(seq/1.1), concat(seq/1.1), concat(seq/1.1), concat(seq/1.1), concat(seq/1.1), concat(seq/1.1) ORDER BY 2,1,3,4,6,5,8,7) AS c
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FROM seq_1_to_200000;
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More results from queries before failure can be found in /dev/shm/var/1/log/func_gconcat.log
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Server [mysqld.1 - pid: 2633, winpid: 2633, exit: 256] failed during test run
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Server log from this test:
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----------SERVER LOG START-----------
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=================================================================
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==2634==ERROR: AddressSanitizer: use-after-poison on address 0x629000b59330 at pc 0x7f3637155935 bp 0x7f362a27d260 sp 0x7f362a27ca08
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READ of size 240 at 0x629000b59330 thread T5
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#0 0x7f3637155934 in __asan_memcpy (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x8c934)
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#1 0x5606f503f3ad in tree_insert /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:255
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#2 0x5606f4245d54 in copy_to_tree /home/buildbot/buildbot/build/mariadb-10.2.25/sql/item_sum.cc:3475
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#3 0x5606f5041277 in tree_walk_left_root_right /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:551
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#4 0x5606f5041197 in tree_walk_left_root_right /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:550
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#5 0x5606f5041197 in tree_walk_left_root_right /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:550
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#6 0x5606f5041197 in tree_walk_left_root_right /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:550
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#7 0x5606f5041197 in tree_walk_left_root_right /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:550
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#8 0x5606f5041197 in tree_walk_left_root_right /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:550
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#9 0x5606f5041197 in tree_walk_left_root_right /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:550
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#10 0x5606f5041197 in tree_walk_left_root_right /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:550
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#11 0x5606f5041197 in tree_walk_left_root_right /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:550
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#12 0x5606f5041197 in tree_walk_left_root_right /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:550
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#13 0x5606f5041197 in tree_walk_left_root_right /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:550
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#14 0x5606f5041197 in tree_walk_left_root_right /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:550
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#15 0x5606f5041197 in tree_walk_left_root_right /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:550
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#16 0x5606f50410ec in tree_walk /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:538
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#17 0x5606f424608b in Item_func_group_concat::repack_tree(THD*) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/item_sum.cc:3493
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#18 0x5606f4246d7d in Item_func_group_concat::add() /home/buildbot/buildbot/build/mariadb-10.2.25/sql/item_sum.cc:3561
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#19 0x5606f424b173 in Aggregator_simple::add() /home/buildbot/buildbot/build/mariadb-10.2.25/sql/item_sum.h:708
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#20 0x5606f3ba8dcf in Item_sum::aggregator_add() (/home/buildbot/buildbot/build/mariadb-10.2.25/sql/mysqld+0xeffdcf)
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#21 0x5606f3b8c949 in update_sum_func /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:23756
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#22 0x5606f3b749a3 in end_send_group(JOIN*, st_join_table*, bool) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:20175
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#23 0x5606f3b6bb9f in evaluate_join_record /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:19010
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#24 0x5606f3b6adfc in sub_select(JOIN*, st_join_table*, bool) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:18829
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#25 0x5606f3b68c3f in do_select /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:18334
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#26 0x5606f3b0a6d9 in JOIN::exec_inner() /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:3625
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#27 0x5606f3b083df in JOIN::exec() /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:3420
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#28 0x5606f3b0b72c in mysql_select(THD*, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:3820
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#29 0x5606f3aeae20 in handle_select(THD*, LEX*, select_result*, unsigned long) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:376
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#30 0x5606f3a728bc in execute_sqlcom_select /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_parse.cc:6493
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#31 0x5606f3a5fcb1 in mysql_execute_command(THD*) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_parse.cc:3534
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#32 0x5606f3a7b020 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_parse.cc:8027
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#33 0x5606f3a566aa in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_parse.cc:1833
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#34 0x5606f3a53827 in do_command(THD*) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_parse.cc:1387
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#35 0x5606f3d7dd0f in do_handle_one_connection(CONNECT*) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_connect.cc:1335
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#36 0x5606f3d7d717 in handle_one_connection /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_connect.cc:1241
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#37 0x5606f45339bd in pfs_spawn_thread /home/buildbot/buildbot/build/mariadb-10.2.25/storage/perfschema/pfs.cc:1862
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#38 0x7f36359836b9 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x76b9)
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#39 0x7f3634e1882c in clone (/lib/x86_64-linux-gnu/libc.so.6+0x10682c)
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0x629000b59330 is located 304 bytes inside of 16352-byte region [0x629000b59200,0x629000b5d1e0)
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allocated by thread T5 here:
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#0 0x7f3637161602 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98602)
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#1 0x5606f501bc52 in my_malloc /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/my_malloc.c:101
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#2 0x5606f4ffd4f1 in alloc_root /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/my_alloc.c:242
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#3 0x5606f503f1ed in tree_insert /home/buildbot/buildbot/build/mariadb-10.2.25/mysys/tree.c:243
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#4 0x5606f4246ee7 in Item_func_group_concat::add() /home/buildbot/buildbot/build/mariadb-10.2.25/sql/item_sum.cc:3564
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#5 0x5606f424b173 in Aggregator_simple::add() /home/buildbot/buildbot/build/mariadb-10.2.25/sql/item_sum.h:708
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#6 0x5606f3ba8dcf in Item_sum::aggregator_add() (/home/buildbot/buildbot/build/mariadb-10.2.25/sql/mysqld+0xeffdcf)
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#7 0x5606f3ba8a63 in Item_sum::reset_and_add() /home/buildbot/buildbot/build/mariadb-10.2.25/sql/item_sum.h:440
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#8 0x5606f3b8c892 in init_sum_functions /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:23738
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#9 0x5606f3b74847 in end_send_group(JOIN*, st_join_table*, bool) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:20167
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#10 0x5606f3b6bb9f in evaluate_join_record /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:19010
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#11 0x5606f3b6a76e in sub_select(JOIN*, st_join_table*, bool) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:18790
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#12 0x5606f3b68c3f in do_select /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:18334
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#13 0x5606f3b0a6d9 in JOIN::exec_inner() /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:3625
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#14 0x5606f3b083df in JOIN::exec() /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:3420
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#15 0x5606f3b0b72c in mysql_select(THD*, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:3820
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#16 0x5606f3aeae20 in handle_select(THD*, LEX*, select_result*, unsigned long) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_select.cc:376
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#17 0x5606f3a728bc in execute_sqlcom_select /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_parse.cc:6493
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#18 0x5606f3a5fcb1 in mysql_execute_command(THD*) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_parse.cc:3534
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#19 0x5606f3a7b020 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_parse.cc:8027
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#20 0x5606f3a566aa in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_parse.cc:1833
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#21 0x5606f3a53827 in do_command(THD*) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_parse.cc:1387
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#22 0x5606f3d7dd0f in do_handle_one_connection(CONNECT*) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_connect.cc:1335
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#23 0x5606f3d7d717 in handle_one_connection /home/buildbot/buildbot/build/mariadb-10.2.25/sql/sql_connect.cc:1241
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#24 0x5606f45339bd in pfs_spawn_thread /home/buildbot/buildbot/build/mariadb-10.2.25/storage/perfschema/pfs.cc:1862
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#25 0x7f36359836b9 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x76b9)
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Thread T5 created by T0 here:
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#0 0x7f36370ff253 in pthread_create (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x36253)
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#1 0x5606f4533daa in spawn_thread_v1 /home/buildbot/buildbot/build/mariadb-10.2.25/storage/perfschema/pfs.cc:1912
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#2 0x5606f386150e in inline_mysql_thread_create /home/buildbot/buildbot/build/mariadb-10.2.25/include/mysql/psi/mysql_thread.h:1239
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#3 0x5606f3875a46 in create_thread_to_handle_connection(CONNECT*) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/mysqld.cc:6506
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#4 0x5606f3876146 in create_new_thread /home/buildbot/buildbot/build/mariadb-10.2.25/sql/mysqld.cc:6576
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#5 0x5606f3877189 in handle_connections_sockets() /home/buildbot/buildbot/build/mariadb-10.2.25/sql/mysqld.cc:6851
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#6 0x5606f3874f91 in mysqld_main(int, char**) /home/buildbot/buildbot/build/mariadb-10.2.25/sql/mysqld.cc:6125
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#7 0x5606f385f91f in main /home/buildbot/buildbot/build/mariadb-10.2.25/sql/main.cc:25
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#8 0x7f3634d3282f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
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SUMMARY: AddressSanitizer: use-after-poison ??:0 __asan_memcpy
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Shadow bytes around the buggy address:
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0x0c5280163210: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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0x0c5280163220: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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0x0c5280163230: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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0x0c5280163240: 00 00 00 00 f7 00 00 00 00 00 00 00 00 00 00 00
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0x0c5280163250: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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=>0x0c5280163260: 00 00 00 00 00 00[f7]00 00 00 00 00 00 00 00 00
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0x0c5280163270: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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0x0c5280163280: 00 00 00 00 00 00 00 00 f7 00 00 00 00 00 00 00
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0x0c5280163290: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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0x0c52801632a0: 00 00 00 00 00 00 00 00 00 00 f7 00 00 00 00 00
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0x0c52801632b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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Shadow byte legend (one shadow byte represents 8 application bytes):
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Addressable: 00
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Partially addressable: 01 02 03 04 05 06 07
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Heap left redzone: fa
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Heap right redzone: fb
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Freed heap region: fd
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Stack left redzone: f1
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Stack mid redzone: f2
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Stack right redzone: f3
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Stack partial redzone: f4
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Stack after return: f5
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Stack use after scope: f8
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Global redzone: f9
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Global init order: f6
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Poisoned by user: f7
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Container overflow: fc
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Array cookie: ac
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Intra object redzone: bb
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ASan internal: fe
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==2634==ABORTING
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