Control: tags -1 + moreinfo Hi Andrea,
On Thu, Sep 18, 2025 at 11:28:29AM +0200, Andrea Palazzi wrote: > Package: src:linux > Version: 6.12.43-1 > Severity: normal > X-Debbugs-Cc: [email protected], [email protected] > User: [email protected] > Usertags: amd64 > > Dear Maintainer, > > * What led up to the situation? > > I'm trying to passthrough an USB controller to a QEMU VM to share keyboard and > mouse via a KVM switch, however the controller fails to change power state - > maybe a reset bug? > > * What exactly did you do (or not do) that was effective (or > ineffective)? > > After a search I tried to add options vfio-pci ids=1022:14c9 disable_idle_d3=1 > to /etc/modprobe.d/vfio.conf , but that didn't work. > > * What was the outcome of this action? > > No changes > > * What outcome did you expect instead? > > I expect the USB controlelr to be passed to the VM. > > Here below is an extract from the kernel logs. > > [ 359.632508] xhci_hcd 0000:c1:00.4: remove, state 4 > [ 359.632516] usb usb2: USB disconnect, device number 1 > [ 359.632746] xhci_hcd 0000:c1:00.4: USB bus 2 deregistered > [ 359.632754] xhci_hcd 0000:c1:00.4: remove, state 1 > [ 359.632765] usb usb1: USB disconnect, device number 1 > [ 359.632767] usb 1-1: USB disconnect, device number 2 > [ 359.632769] usb 1-1.1: USB disconnect, device number 5 > [ 359.751074] usb 1-1.4: USB disconnect, device number 7 > [ 360.295060] usb 1-2: USB disconnect, device number 3 > [ 360.295065] usb 1-2.1: USB disconnect, device number 4 > [ 360.295068] usb 1-2.1.4: USB disconnect, device number 8 > [ 360.295071] usb 1-2.1.4.1: USB disconnect, device number 11 > [ 360.487061] usb 1-2.3: USB disconnect, device number 6 > [ 360.871059] usb 1-2.4: USB disconnect, device number 9 > [ 360.967992] xhci_hcd 0000:c1:00.4: USB bus 1 deregistered > [ 361.039526] audit: type=1400 audit(1758187296.085:138): apparmor="STATUS" > operation="profile_replace" profile="unconfined" > name="libvirt-c53156d7-6b25-4664-ab2f-322f5c5edf88" pid=8777 > comm="apparmor_parser" > [ 361.074989] audit: type=1400 audit(1758187296.121:139): apparmor="STATUS" > operation="profile_replace" info="same as current profile, skipping" > profile="unconfined" > name="libvirt-c53156d7-6b25-4664-ab2f-322f5c5edf88//passt" > pid=8777 comm="apparmor_parser" > [ 361.153072] audit: type=1400 audit(1758187296.197:140): apparmor="STATUS" > operation="profile_replace" info="same as current profile, skipping" > profile="unconfined" name="libvirt-c53156d7-6b25-4664-ab2f-322f5c5edf88" > pid=8785 comm="apparmor_parser" > [ 361.153588] audit: type=1400 audit(1758187296.197:141): apparmor="STATUS" > operation="profile_replace" info="same as current profile, skipping" > profile="unconfined" > name="libvirt-c53156d7-6b25-4664-ab2f-322f5c5edf88//passt" > pid=8785 comm="apparmor_parser" > [ 361.322658] tun: Universal TUN/TAP device driver, 1.6 > [ 361.323435] br0: port 2(vnet0) entered blocking state > [ 361.323439] br0: port 2(vnet0) entered disabled state > [ 361.323448] vnet0: entered allmulticast mode > [ 361.323490] vnet0: entered promiscuous mode > [ 361.323704] br0: port 2(vnet0) entered blocking state > [ 361.323707] br0: port 2(vnet0) entered forwarding state > [ 361.717045] mmap kvmfr0: 7f0717ffe000-7f071fffe000 with size 134217728 > offset 0 > [ 368.107426] vfio-pci 0000:43:00.0: enabling device (0002 -> 0003) > [ 368.110005] vfio-pci 0000:43:00.1: enabling device (0000 -> 0002) > [ 369.366004] vfio-pci 0000:c1:00.4: not ready 1023ms after FLR; waiting > [ 370.421951] vfio-pci 0000:c1:00.4: not ready 2047ms after FLR; waiting > [ 372.721838] vfio-pci 0000:c1:00.4: not ready 4095ms after FLR; waiting > [ 377.077617] vfio-pci 0000:c1:00.4: not ready 8191ms after FLR; waiting > [ 385.525207] vfio-pci 0000:c1:00.4: not ready 16383ms after FLR; waiting > [ 402.160360] vfio-pci 0000:c1:00.4: not ready 32767ms after FLR; waiting > [ 436.978490] vfio-pci 0000:c1:00.4: not ready 65535ms after FLR; giving up > [ 438.018660] br0: port 2(vnet0) entered disabled state > [ 438.018942] vnet0 (unregistering): left allmulticast mode > [ 438.018946] vnet0 (unregistering): left promiscuous mode > [ 438.018950] br0: port 2(vnet0) entered disabled state > [ 441.363433] kauditd_printk_skb: 4 callbacks suppressed > [ 441.363437] audit: type=1400 audit(1758187376.413:146): apparmor="STATUS" > operation="profile_remove" profile="unconfined" > name="libvirt-c53156d7-6b25-4664-ab2f-322f5c5edf88" pid=9119 > comm="apparmor_parser" > [ 441.369034] xhci_hcd 0000:c1:00.4: Unable to change power state from D3cold > to D0, device inaccessible > [ 441.369157] xhci_hcd 0000:c1:00.4: xHCI Host Controller > [ 441.369163] xhci_hcd 0000:c1:00.4: new USB bus registered, assigned bus > number 1 > [ 441.369170] xhci_hcd 0000:c1:00.4: Host halt failed, -19 > [ 441.369171] xhci_hcd 0000:c1:00.4: can't setup: -19 > [ 441.369174] xhci_hcd 0000:c1:00.4: USB bus 1 deregistered > [ 441.369202] xhci_hcd 0000:c1:00.4: init 0000:c1:00.4 fail, -19 > > > -- Package-specific info: > ** Version: > Linux version 6.12.43+deb13-amd64 ([email protected]) > (x86_64-linux-gnu-gcc-14 (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for > Debian) 2.44) #1 SMP PREEMPT_DYNAMIC Debian 6.12.43-1 (2025-08-27) > > ** Command line: > BOOT_IMAGE=/vmlinuz-6.12.43+deb13-amd64 root=ZFS=/ROOT/debian ro > root=ZFS=rpool/ROOT/debian quiet amd_iommu=on iommu=pt kvm_amd.npt=1 > kvm_amd.avic=1 vfio_pci.ids=1002:73df,1002:73ff,1002:ab28 nofb > video=efifb:off video=vesafb:off video=simplefb:off > amdgpu.ppfeaturemask=0xffffffff > > ** Tainted: POE (12289) > * proprietary module was loaded > * externally-built ("out-of-tree") module was loaded > * unsigned module was loaded We noticed that you have OOT modules loaded. Thus please test explicitly if you can reproduce the issue with no external module loaded. I understand this is not possible for ZFS modules (which though might not have a direct relation), but there is more importantly 'kvmfr' loaded. As I understand the out-of-tree module kvmfr is directly related to PCI passthrough. Regards, Salvatore
