the second test case was i trying to reproduce, but can't reproduced in my env.
this is already fixed in kilo&upstream but not trusty,
https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1640382
i originally want to fix above LP, and found one commit but i found Amad fixed one step later commit then i wanted.
so Im trying to patch both of them for trusty.
it's not easy to reproduce this again.
the second test case was i trying to reproduce, but can't reproduced in my env.
this is already fixed in kilo&upstream but not trusty,
https:/ /bugs.launchpad .net/ubuntu/ +source/ qemu/+bug/ 1640382
i originally want to fix above LP, and found one commit but i found Amad fixed one step later commit then i wanted.
so Im trying to patch both of them for trusty.
it's not easy to reproduce this again.