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  1. MariaDB Server
  2. MDEV-16368

server crash when query_cache_type is changed

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Details

    • Bug
    • Status: Confirmed (View Workflow)
    • Major
    • Resolution: Unresolved
    • 5.5, 10.0, 10.1, 10.2, 10.3, 10.4, 10.5, 10.6, 10.7, 10.8, 10.9, 10.10, 10.11
    • 10.4, 10.5, 10.6
    • Query Cache
    • None

    Description

      testcase from MDEV-14526, run with --repeat=N

      CREATE TABLE t1 (
        `id` int(10) NOT NULL AUTO_INCREMENT,
        `k` int(10) NOT NULL default '0',
        PRIMARY KEY (`id`)) 
      ENGINE=MyISAM;
       
      INSERT IGNORE INTO t1 VALUES
        (NULL,1),(NULL,8),(NULL,NULL),(NULL,NULL),(NULL,4),(NULL,9),(NULL,7),
        (NULL,3),(NULL,NULL),(NULL,2),(NULL,3),(NULL,NULL),(NULL,2),(NULL,7), 
        (NULL,1),(NULL,2),(NULL,4),(NULL,NULL),(NULL,1),(NULL,1),(NULL,4);
       
      SET GLOBAL query_cache_size= 1024*1024;
      SET GLOBAL query_cache_type= 1;
       
      --connect (con1,localhost,root,,test)
      --send
      	SELECT DISTINCT id FROM t1 WHERE id BETWEEN 5603 AND 16218 ORDER BY k;
       
      --connection default
      SET GLOBAL query_cache_type= 0;
       
      --connection con1
      --reap
       
      # Cleanup
      --disconnect con1
      --connection default
      DROP TABLE t1;
      SEt GLOBAL query_cache_size= DEFAULT;
      SEt GLOBAL query_cache_type= DEFAULT;
      

      5.5 1ada4afb0a51f7283b6187a95019ec2cb80c8a0b
      Thread 1 (Thread 0x7feb86778700 (LWP 21990)):
      #0  __pthread_kill (threadid=<optimized out>, signo=11) at ../sysdeps/unix/sysv/linux/pthread_kill.c:62
      #1  0x0000000000ce27b9 in my_write_core (sig=11) at /home/alice/git/5.5/mysys/stacktrace.c:457
      #2  0x00000000007c7b14 in handle_fatal_signal (sig=11) at /home/alice/git/5.5/sql/signal_handler.cc:262
      #3  <signal handler called>
      #4  0x00000000005b9b0c in inline_mysql_rwlock_unlock (that=0x7fec6dfebcd0) at /home/alice/git/5.5/include/mysql/psi/mysql_thread.h:913
      #5  0x00000000005c804b in Query_cache_query::unlock_writing (this=0x7fec6dfebcc8) at /home/alice/git/5.5/sql/sql_cache.cc:944
      #6  0x00000000005bccd5 in Query_cache::store_query (this=0x15878e0 <query_cache>, thd=0x291a890, tables_used=0x7feb70004f90) at /home/alice/git/5.5/sql/sql_cache.cc:1566
      #7  0x000000000060f41b in execute_sqlcom_select (thd=0x291a890, all_tables=0x7feb70004f90) at /home/alice/git/5.5/sql/sql_parse.cc:4677
      #8  0x000000000060815c in mysql_execute_command (thd=0x291a890) at /home/alice/git/5.5/sql/sql_parse.cc:2224
      #9  0x0000000000612268 in mysql_parse (thd=0x291a890, rawbuf=0x7feb70004d38 "SELECT DISTINCT id FROM t1 WHERE id BETWEEN 5603 AND 16218 ORDER BY k", length=69, parser_state=0x7feb867776b0) at /home/alice/git/5.5/sql/sql_parse.cc:5923
      #10 0x00000000006055ff in dispatch_command (command=COM_QUERY, thd=0x291a890, packet=0x2920ce1 "SELECT DISTINCT id FROM t1 WHERE id BETWEEN 5603 AND 16218 ORDER BY k", packet_length=69) at /home/alice/git/5.5/sql/sql_parse.cc:1066
      #11 0x00000000006047be in do_command (thd=0x291a890) at /home/alice/git/5.5/sql/sql_parse.cc:793
      #12 0x0000000000713eee in do_handle_one_connection (thd_arg=0x291a890) at /home/alice/git/5.5/sql/sql_connect.cc:1268
      #13 0x0000000000713c66 in handle_one_connection (arg=0x291a890) at /home/alice/git/5.5/sql/sql_connect.cc:1184
      #14 0x0000000000c8f24e in pfs_spawn_thread (arg=0x28ddcd0) at /home/alice/git/5.5/storage/perfschema/pfs.cc:1015
      #15 0x00007feb8a3096ba in start_thread (arg=0x7feb86778700) at pthread_create.c:333
      #16 0x00007feb899b441d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
      

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              sanja Oleksandr Byelkin
              alice Alice Sherepa
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