It seems a similar issue bug at https://bugzilla.kernel.org/show_bug.cgi?format=multiple&id=218765
And mentions there is a related patch since v6.5 https://www.spinics.net/lists/linux-pci/msg152506.html On Tue, 23 Apr 2024, Bjorn Helgaas wrote: > FYI. The retraining was added by a89c82249c37 ("PCI: Work around PCIe > link training failures"). > > Paul, is this a regression? a89c82249c37 appeared in v6.5. I > *assume* whatever is below bus 01 did actually work before v6.5, in > spite of the fact that apparently PCI_EXP_LNKSTA_DLLLA was not set > when we enumerated the 00:1c.0 Root Port? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2085103 Title: pci hot plug get "retraining non-functional downstream link at 2.5GT/s]" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/2085103/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
