Just as a clarification, qemu-img becomes unkillable once it is started. The only way to kill it is to restart. All the while it's writing data somewhere to the disk. Even once it is finished, qemu-img hangs in this state and never finishes.
Just as a clarification, qemu-img becomes unkillable once it is started. The only way to kill it is to restart. All the while it's writing data somewhere to the disk. Even once it is finished, qemu-img hangs in this state and never finishes.