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MDEV-9183 MariaDB 10.1 crash on mysqld --verbose --help

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plugin_init() works like this:
1. init MyISAM
2. load plugins from mysql.plugin, if it's a MyISAM table
3. init all not initialized plugins
4. all done, if step 2 loaded mysql.plugin,
   otherwise:
5. load plugins from mysql.plugin
6. init all not initialized plugins

now, with --help --verbose, step 3 will not actually
initialize them, and if mysql.plugin is unreadable,
step 6 will try to initialize existing plugins again.
Fix: when skipping initialization because of --help,
change plugin status from PLUGIN_IS_UNINITIALIZED.
This commit is contained in:
Sergei Golubchik
2015-12-16 19:33:53 +01:00
parent 03245ec02e
commit 392d557901
3 changed files with 13 additions and 0 deletions
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sql/sql_plugin.cc
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@ -1399,6 +1399,7 @@ static int plugin_initialize(MEM_ROOT *tmp_root, struct st_plugin_int *plugin,
if (options_only || state == PLUGIN_IS_DISABLED)
{
ret= 0;
state= PLUGIN_IS_DISABLED;
goto err;
}