fix ptofiler to add assert
fix ptofiler to add assert

Summary: Ref T8018

Test Plan: N/A

Reviewers: sunweijie, shenyuannan, cailiuyang

Reviewed By: cailiuyang

Subscribers: #pegasus

Maniphest Tasks: T8018

Differential Revision: https://phabricator.d.xiaomi.net/D53509

shengofsun/rDSN,shengofsun/rDSN,shengofsun/rDSN,shengofsun/rDSN,shengofsun/rDSN,shengofsun/rDSN,shengofsun/rDSN,shengofsun/rDSN