Correct, PCIe link bounce/flap. The attached PCIe device entered a failed state where it was repeatedly resetting, and therefore the link itself was going up and down. -----Original Message----- From: Michal Prívozník <mprivozn@xxxxxxxxxx> Sent: Wednesday, July 20, 2022 11:07 AM To: Pighin, Anthony (Nokia - CA/Ottawa) <anthony.pighin@xxxxxxxxx>; libvir-list@xxxxxxxxxx Subject: Re: Persistent Failed to attach device following transient Failed to read product/vendor ID On 7/11/22 20:14, Pighin, Anthony (Nokia - CA/Ottawa) wrote: > I'm attempting to solve the issue reported here: > > https://gitlab.com/libvirt/libvirt/-/issues/345 > > Hoping the originator of virHostdevDeleteMissingPCIDevices() will be able to comment, as I am still trying to reproduce the issue with additional debug in place. > > diff --git a/src/hypervisor/virhostdev.c b/src/hypervisor/virhostdev.c > index c0ce867596..d43354963e 100644 > --- a/src/hypervisor/virhostdev.c > +++ b/src/hypervisor/virhostdev.c > @@ -1101,11 +1101,11 @@ virHostdevReAttachPCIDevices(virHostdevManager *mgr, > VIR_ERROR(_("Failed to allocate PCI device list: %s"), > virGetLastErrorMessage()); > virResetLastError(); > - return; > } > - > - virHostdevReAttachPCIDevicesImpl(mgr, drv_name, dom_name, pcidevs, > - hostdevs, nhostdevs); > + else { > + virHostdevReAttachPCIDevicesImpl(mgr, drv_name, dom_name, pcidevs, > + hostdevs, nhostdevs); > + } > > /* Handle the case where PCI devices from the host went missing > * during the domain lifetime */ > Yeah, this looks like a correct fix, but I'm trying to understand the original problem more. In the gilab issue you mention 'link bounce' - do you mean PCIe link? Michal
