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  1. MariaDB Server
  2. MDEV-35050

Found wrong usage of mutex upon setting plugin session variables

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    Description

      SET session_track_system_variables="*";
      		 
      SET mhnsw_min_limit = 10;

      bb-11.6-MDEV-32887-vector fe9092a8

      		 
      safe_mutex: Found wrong usage of mutex 'LOCK_plugin' and 'LOCK_global_system_variables'
      		 
      Mutex currently locked (in reverse order):
      		 
      LOCK_global_system_variables      /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/session_tracker.cc  line 457
      		 
      LOCK_plugin                       /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/session_tracker.cc  line 441

      Reproducible with any of 3 mhnsw_x session variables.

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          causes

          Bug - A problem which impairs or prevents the functions of the product. MDEV-35086 Trying to lock mutex when the mutex was already locked (session_tracker.cc), server hangs

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed

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              serg Sergei Golubchik
              elenst Elena Stepanova
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                Updated:
                Resolved:

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