Hello, while using qemu 2.9.1 and doing a backup of a disk:
I have sometimes the following output: Formatting '/mnt/qemu-249-2017_11_19-04_00_05.qcow2', fmt=qcow2 size=236223201280 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16 followed by: kvm: Failed to flush the L2 table cache: Input/output error kvm: Failed to flush the refcount block cache: Input/output error If this error happens (Failed to flush) the whole backup is incomplete. Host kernel is a 4.4 based openSuSE 42.3 kernel. Is this a known bug? Greets, Stefan
