[Qemu-devel] Can I have someone's feedback on [bug 1809075] Concurrency bug on keyboard events: capslock LED messing up keycode streams causes character misses at guest kernel

[Gao Zhiyuan]

Hi everyone.

Can I please have someone's feedback on this bug? 
https://bugs.launchpad.net/qemu/+bug/1809075
Briefly, guest OS loses characters sent to it via vnc. And I spot the 
bug in relation to ps2 driver.

I'm thinking of possible fixes and I might want to use a memory barrier. 
But I would really like to have some suggestion from a qemu developer 
first. For example, can we brutally drop capslock LED key events in ps2 
queue?

It is actually relevant to openQA, an automated QA tool for openSUSE. 
And this bug blocks a few test cases for us.

Thank you in advance!

Kind regards,
Gao Zhiyuan