retrace: Ensure structures are zeroed upon allocation.
retrace: Ensure structures are zeroed upon allocation.

As it is hard to ensure that all members are always initialized otherwise,
and reproducible behavior is always better.

tuanthng/apitrace,schulmar/apitrace,EoD/apitrace,trtt/apitrace,tuanthng/apitrace,joshua5201/apitrace,tuanthng/apitrace,schulmar/apitrace,trtt/apitrace,joshua5201/apitrace,EoD/apitrace,joshua5201/apitrace,swq0553/apitrace,tuanthng/apitrace,EoD/apitrace,apitrace/apitrace,swq0553/apitrace,swq0553/apitrace,joshua5201/apitrace,apitrace/apitrace,joshua5201/apitrace,tuanthng/apitrace,trtt/apitrace,EoD/apitrace,trtt/apitrace,schulmar/apitrace,apitrace/apitrace,trtt/apitrace,swq0553/apitrace,swq0553/apitrace,apitrace/apitrace,schulmar/apitrace,schulmar/apitrace,EoD/apitrace