[pve-devel] [PATCH qemu-server 05/31] blockdev: add helpers for attaching and detaching block devices

[DERUMIER, Alexandre]

> +    # node and also implicit backing children referenced by a qcow2
> image.
> +    eval { mon_cmd($vmid, 'blockdev-del', 'node-name' =>
> "$node_name"); };
> +    if (my $err = $@) {
> +        return if $err =~ m/Failed to find node with node-name/; #
> already gone

>>does this happen regularly?

From my tests, I have seen different behaviour, depending if the
initial drive was defined in qemu command line  ,   or if it was live
hot-plugged first and hot-unplugged after.

I have also have seen different behaviour with block with defined node-
name and with autogenerated nodename.

I don't have retested since a while, so can't confirm 100%, I'll try to
do some test again today.


But I'm not sure we should return here, but instead simply skip and try
to remove the throttle group later.