On Thu, Feb 03, 2022 at 23:25:05 +0000, Kalra, Ashish wrote: > [AMD Official Use Only] Well, I hope it's okay to use it for libvirt officially too ;) > > Hi, > I am using Fedora 33, with the following KVM, qemu and libvirt versions: Note that Fedora 33 is already end-of-life, it would be great if you can re-test with a more recent version > QEMU 5.1.0 > libvirt 6.6.0 specifically this was released 1.5 years ago > KVM 5.14.18 > > We have done pass-through of a PCIe NVMe device to the guest running on FC33 > using either virt-manager or virsh and then we do the hot-unplug of the device > while it is attached to the guest. > > The device is no longer seen on the guest hardware device list on virt-manager > and then we hotplug the device again and we are able to use it on the Host, > but when we try to re-attach it to the guest, we get the following error message: > > Requested operation is not valid, PCI device 0000:c4::00.0 is in use by driver QEMU, > Domain fedora 33. [...] Unfortunately the tracing you've done doesn't really help in seeing what gone wrong in libvirt. Please attach debug logs per https://www.libvirt.org/kbase/debuglogs.html
