Hi, I am working on a driver for a PCI express device. And have been trying to get hotplug feature working on a FreeBSD 11.2 VM using both PFs and VFs. (host is Fedora 26) But I am having many issues in relation to this. I am encountering issues with both scenarios, For PF -> 1. Create a VM with FreeBSD11.2 2. Attach 1PF to the guest 1. Issue 'devctl rescan pci0' - Scans the PCI bus and the device becomes visible in the guest. 4. Install driver, at some point of loading the driver/bringing up the pci device -- Error = kernel panics and reboots. -- FOR VF -> 1. Create a VM with FreeBSD11.2 1. Attach 1VF to the guest 2. Issue 'devctl rescan pci0' - Scans the PCI bus and the device becomes visible in the guest. 3. Detach the device from the guest. 4. Issue 'devctl rescan pci0' -- Error = Expecting VF should be removed from the guest but it is not -- Is the support in FreeBSD at a stage where we should not be using hotplug feature? Could someone give me a better idea of the support that is in FreeBSD for hotplug. The documentation is very limited. Thank you. Ciunas Bennett Dromore House, East Park, Shannon, Co. Clare, V14 AN23, Ireland [Untitled] -------------------------------------------------------------- Intel Research and Development Ireland Limited Registered in Ireland Registered Office: Collinstown Industrial Park, Leixlip, County Kildare Registered Number: 308263 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.