diff options
Diffstat (limited to 'sql/session_tracker.cc')
| -rw-r--r-- | sql/session_tracker.cc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sql/session_tracker.cc b/sql/session_tracker.cc index 35cd55394a9..3ddece6039b 100644 --- a/sql/session_tracker.cc +++ b/sql/session_tracker.cc @@ -443,8 +443,11 @@ bool Session_sysvars_tracker::vars_list::store(THD *thd, String *buf) show.name= svar->name.str; show.value= (char *) svar; + mysql_mutex_lock(&LOCK_global_system_variables); const char *value= get_one_variable(thd, &show, OPT_SESSION, SHOW_SYS, NULL, &charset, val_buf, &val_length); + mysql_mutex_unlock(&LOCK_global_system_variables); + if (is_plugin) mysql_mutex_unlock(&LOCK_plugin); |