Some fixes for testMemoryNotification
Some fixes for testMemoryNotification

Signed-off-by: Qiang Huang <488e06933c295c76472a67dbc6657ac40a756953@huawei.com>

adrianreber/runc,wking/runc,laijs/runc,rajasec/runc,laijs/runc,docker/runc,laijs/runc,opencontainers/runc,xiaochenshen/runc,sunyuan3/runc,mikebrow/runc,opencontainers/runc,estesp/runc,xiaochenshen/runc,cyphar/runc,sunyuan3/runc,dqminh/runc,hqhq/runc,mYmNeo/runc,crosbymichael/runc,adrianreber/runc,mheon/runc,kolyshkin/runc,mikebrow/runc,docker/runc,cyphar/runc,mYmNeo/runc,mheon/runc,kolyshkin/runc,rhatdan/runc,justincormack/runc,stefanberger/runc,mYmNeo/runc,mikebrow/runc,sunyuan3/runc,estesp/runc,rajasec/runc,estesp/runc,mheon/runc,justincormack/runc,hqhq/runc,rhatdan/runc,docker/runc,adrianreber/runc,crosbymichael/runc,stefanberger/runc,crosbymichael/runc,wking/runc,dqminh/runc,stefanberger/runc,rhatdan/runc,justincormack/runc,wking/runc,rajasec/runc,xiaochenshen/runc,kolyshkin/runc,kolyshkin/runc,hqhq/runc,opencontainers/runc,dqminh/runc,dqminh/runc,rhatdan/runc,opencontainers/runc,cyphar/runc