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  1. MariaDB Server
  2. MDEV-11191

server_audit from 10.0.28 crashes on MySQL 5.7

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 10.0.28
    • 10.0.29
    • Plugin - Audit
    • CentOS 7 and MySQL 5.7.16
    • 10.0.29

    Description

      Using the server_audit.so plugin from 10.0.28 on MySQL 5.7.16 crashes MySQL.

      The server_audit.so plugin from 10.0.27 worked without issue. I think this is related to MDEV-10441 and MDEV-10905. Those seem like the only changes to server_audit between 10.0.27 and 10.0.28.

      https://github.com/MariaDB/server/commit/d61e5260fb9983ea8dff539b23a6d0a150c2065c#diff-d140eac18a0e7ddbe8192d10f3b422d1

      2016-10-31T13:59:36.658206Z 0 [Note] /usr/sbin/mysqld: ready for connections.
      Version: '5.7.16-log'  socket: '/var/lib/mysql/mysql.sock'  port: 3307  MySQL Community Server (GPL)
      13:59:54 UTC - 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.
      Attempting to collect some information that could help diagnose the problem.
      As this is a crash and something is definitely wrong, the information
      collection process might fail.
       
      key_buffer_size=8388608
      read_buffer_size=131072
      max_used_connections=1
      max_threads=151
      thread_count=1
      connection_count=1
      It is possible that mysqld could use up to 
      key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 68190 K  bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.
       
      Thread pointer: 0x7f66bc000ae0
      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 = 7f66f188ce70 thread_stack 0x40000
      /usr/sbin/mysqld(my_print_stacktrace+0x3b)[0xef182b]
      /usr/sbin/mysqld(handle_fatal_signal+0x461)[0x7ad8c1]
      /lib64/libpthread.so.0(+0xf100)[0x7f67068a5100]
      /usr/lib64/mysql/plugin/server_audit.so(auditing+0x67e)[0x7f66f18d78fe]
      /usr/lib64/mysql/plugin/server_audit.so(+0x9b8b)[0x7f66f18d8b8b]
      /usr/sbin/mysqld[0x7adac3]
      /usr/sbin/mysqld(_Z18mysql_audit_notifyP3THD30mysql_event_general_subclass_tiPKcm+0x1f4)[0x7ae074]
      /usr/sbin/mysqld(_ZN12Query_logger17general_log_printEP3THD19enum_server_commandPKcz+0xc5)[0xc112e5]
      /usr/sbin/mysqld(_Z15acl_log_connectPKcS0_S0_S0_P3THD19enum_server_command+0xaf)[0x7b5fff]
      /usr/sbin/mysqld(_Z16acl_authenticateP3THD19enum_server_command+0xb79)[0x7b6de9]
      /usr/sbin/mysqld[0xc84dbd]
      /usr/sbin/mysqld(_Z22thd_prepare_connectionP3THD+0x62)[0xc85f52]
      /usr/sbin/mysqld(handle_connection+0x263)[0xd86993]
      /usr/sbin/mysqld(pfs_spawn_thread+0x1b4)[0x12645b4]
      /lib64/libpthread.so.0(+0x7dc5)[0x7f670689ddc5]
      /lib64/libc.so.6(clone+0x6d)[0x7f6705359ced]
       
      Trying to get some variables.
      Some pointers may be invalid and cause the dump to abort.
      Query (0): Connection ID (thread ID): 2
      Status: NOT_KILLED
       
      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.
      

      Attachments

        1. mysqld.log
          13 kB
        2. my.cnf
          1 kB

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              holyfoot Alexey Botchkov
              owenp Owen
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                Updated:
                Resolved:

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