I looked into the source code of percona 5.5.18-rel23.0 and didn't find the class *Deferred_log_events*, so this bug will not affact 5.5.18.
I looked into the source code of percona 5.5.18-rel23.0 and didn't find the class *Deferred_ log_events* , so this bug will not affact 5.5.18.