do something dirty to use zen during the trace of test_cache_stall
do something dirty to use zen during the trace of test_cache_stall

tyb0807/angr,schieb/angr,schieb/angr,tyb0807/angr,angr/angr,angr/angr,iamahuman/angr,iamahuman/angr,f-prettyland/angr,tyb0807/angr,f-prettyland/angr,angr/angr,angr/tracer,f-prettyland/angr,iamahuman/angr,schieb/angr