Sorry, i posted the wrong output, i had modified the ownership of usb the device /dev/bus/usb/001/010 to libvirt-qemu:kvm, but the problem persists.
I configured libvirt to run as root, but the problem is the same, in syslog im still receiving Mar 29 22:54:42 ivan-desktop kernel: [174324.769452] xhci_hcd 0000:00:10.0: xHCI xhci_drop_endpoint called with disabled ep ffff88010a264600 Mar 29 22:54:42 ivan-desktop kernel: [174324.769470] xhci_hcd 0000:00:10.0: xHCI xhci_drop_endpoint called with disabled ep ffff88010a264648 Mar 29 22:54:42 ivan-desktop kernel: [174324.769479] xhci_hcd 0000:00:10.0: xHCI xhci_drop_endpoint called with disabled ep ffff88010a264690 Mar 29 22:54:42 ivan-desktop kernel: [174324.769489] xhci_hcd 0000:00:10.0: xHCI xhci_drop_endpoint called with disabled ep ffff88010a2646d8 Mar 29 22:54:42 ivan-desktop kernel: [174324.769497] xhci_hcd 0000:00:10.0: xHCI xhci_drop_endpoint called with disabled ep ffff88010a264720 Mar 29 22:54:42 ivan-desktop kernel: [174324.769506] xhci_hcd 0000:00:10.0: xHCI xhci_drop_endpoint called with disabled ep ffff88010a264768 Mar 29 22:54:42 ivan-desktop kernel: [174324.981362] usb 1-1: reset high-speed USB device number 10 using xhci_hcd Heres the portion of the qemu xml of the guest: <hostdev mode='subsystem' type='usb' managed='yes'> <source> <vendor id='0x0cf3'/> <product id='0x9271'/> <address bus='1' device='10'/> </source> <alias name='hostdev0'/> </hostdev> -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1392504 Title: libvirt not relabeling devices on USB Passthrough To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1392504/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs