Hi Christian, I'm a Louis' coworker and I also worked on this issue. We first did some tests starting from 2.12 to find a workaround with qemu-img. It seemed that this version of qemu was immune to our bug. Then, we backport packages from cosmic and reproduce our production issue. I'm not familiar enough to qemu code and I was unbale to find the commit which fix the issue.
Thanks -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1837869 Title: Cannot complete snapshot if read-only backing store is opened by another VM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1837869/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
