Comment 32 for bug 1927808

I have sent the patch to upstream:
https://<email address hidden>/T/#u
I add your description of this bug in the commit message. If there is anything wrong,
please let me know.

About the warnings "timed out to flush queue 2", my colleague told me he cannot see the symptom.
It seems like you don't need special steps to reproduce it, right?
If you have, please tell me the steps.
Thank you.