[BUG] Concurent call to virDomainDetachDevice issue

Hello, I experienced an issue with the virDomainDetachDevice call from the C lib or Virsh CLI. When I execute two concurrent call in parallel with virDomainDetachDevice, nothing happens the device is not detached, no log error in Journald or /var/log/libvirt/qemu/domain-name.log. If I execute the two call synchronously or only one call, the device is always detached with no issue. It seems there is a bug here, a concurrency issue/race condition...etc? Nothing in the doc mention such a behaviour: https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainDetachDevice Environment: virsh --version: 8.0.0 Libvirt version: libvirtd (libvirt) 8.0.0 Linux hostname 5.15.0-69-generic #76-Ubuntu SMP Fri Mar 17 17:19:29 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux Step to reproduce the issue: With a running domain (22.04.2 LTS) I'm attaching this device via NBD protocol with the following XML definition vdb.xml: <disk device='disk' type='network'> <driver name='qemu' type='raw' cache='none' /> <source protocol='nbd' name='66f85e15-4ea4-428e-a63e-001f41094d7d' reconnectDelay='10'> <host transport='unix' socket='/var/run/qemu/nbdserver.sock'/> </source> <target dev='vdb' bus='virtio'/> </disk> bash $ virsh attach-device <domain> vdb.xml the device is successfully attached. bash $ virsh detach-device <domain> vdb.xml & virsh detach-device <domain>vdb.xml & [7] 1780612 [8] 1780613 [7]+ Stopped virsh detach-device domain vdb.xml [8]- Stopped virsh detach-device domain vdb.xml vdb device is not detached, nothing happen, nor error log...etc. Thank you for this great project, Best regards, Pierre-Emmanuel. PS: Your website TLS certificate expires yesterday: Sunday, 11 June 2023 at 19:35:27