On Wed, Apr 15, 2026 at 02:29:08AM +0200, Alexandre N. wrote: > Please find attached the full dmesg with the debug patch > and options you mentioned, using a clean 6.19.11 as a base. > > This dmesg log shows a run with my host and guest issues (no > disks from controller in VM, page fault error, virt-manager > unresponsive etc). > 0000:05:00.0 is the PCI SATA Controller device having issues. > > Timings: > - 36.447944: host ready after startup > - 158.292119: VM starting > - 166.564760: VM startup sequence ended > - 286.631128: VM shutting down > - 293.950976: VM shutdown sequence ended
Thank you! In your case, the host kernel binds a driver to the device which is unbound prior to passthrough. Unbinding sets current_state to PCI_UNKNOWN and that makes the problem re-appear despite 4d4c10f763d7: https://elixir.bootlin.com/linux/v6.19.11/source/drivers/pci/pci-driver.c#L484 On Bernd's system, the host kernel doesn't bind a driver to the DVB adapter, hence 4d4c10f763d7 is sufficient to make the issue disappear in his case. I guess if he'd unbind vfio-pci and rebind it, he'd see the problem again. In any case, the patch is now submitted: https://lore.kernel.org/r/febc3f354e0c1f5a9f5b3ee9ffddaa44caccf651.1776268054.git.lu...@wunner.de/ Thank you both for your efforts in reporting the bug and patiently providing log output for debugging! Lukas
