Ubuntu
linux package

  1. Focal (20.04)
  2. Bug #1874464
  3. Comment #50

Comment 50 for bug 1874464

Revision history for this message
Bruce.Zhao1 (ryzen-linux) wrote :

I could see this issue with same Call trace pasted above with ubuntu 20.04/20.10/21.04.
Had a look at relevant kernel code and found all of them disable only ASPM L1.1 rather than ASPM completely.Rebuilt the kernel by disabling whole ASPM feature this NETDEV WATCHDOG call trace disappears.
code hacked was like below:
pci_disable_link_state(pdev, PCIE_LINK_STATE_L1_1);//issue appears

pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S |
                                           PCIE_LINK_STATE_L1);//issue disappears

I believe the experiment shows there is ASPM issue with r8169 driver.Can anyone share your view on this problem which may shed some light on the way forward.Is there a Realtek contact window we could reach out ot.Thanks for anyone who can help.