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  1. MariaDB Server
  2. MDEV-5089

possible deadlocks between rwlocks and mutexes

Details

    • Task
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 5.5.40
    • OTHER
    • None

    Description

      safe_mutex has built-in deadlock detection, but it only works for mutexes.
      Still, compiling with -DUSE_MUTEX_INSTEAD_OF_RW_LOCKS we can magically turn all rwlocks into mutexes.

      When done, safe_mutex reports new locking order violations, the server doesn't even start.

      Attachments

        Issue Links

          includes

          Bug - A problem which impairs or prevents the functions of the product. MDEV-5345 Deadlock between mysql_change_user(), SHOW VARIABLES and INSTALL PLUGIN

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-5607 Query cache destroys uninitialized rwlock

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-5616 Deadlock between CREATE/DROP FUNCTION and SELECT from view

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-6162 TokuDB: multiple locks and unlock of not locked TOKUDB_SHARE::num_DBs_lock

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-6749 Deadlock between GRANT/REVOKE, SELECT FROM I_S.COLUMNS, SET slow_query_log and failed connection attempt

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-6774 Deadlock between SELECT, DROP TABLE, SHOW STATUS and SET @@global.log_output

          • Major - Major loss of function.
          • Closed

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            People

              svoj Sergey Vojtovich
              serg Sergei Golubchik
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              Dates

                Created:
                Updated:
                Resolved:

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