I have created a second PPA [2], trying once again the minimal patch. Not sure what was going wrong the first time trying a minimized version, but this seems to work well.
@Luis or Clement - can you give things a try with the PPA? PPA: https://launchpad.net/~paelzer/+archive/ubuntu/bug-1837869-locking-of-snapshots-v2 Code: https://code.launchpad.net/~paelzer/ubuntu/+source/qemu/+git/qemu/+ref/bug-1837869-snapshot-base-perm-bionic-justone -- 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