"error finishing read" with Mesa 7i92T on fresh install

rtt min/avg/max/mdev = 0.057/0.101/10.259/0.057 ms, pipe 2

> 10 ms suggests either network power management is enabled
(in the BIOS) or a problem with the RTK driver. I would try
using the DKMS RTK 8168 driver:

docs.google.com/document/d/1jeV_4VKzVmOI...ading=h.7ydcp08f6tyu

I updated the RTK 8168 driver following the procedure in Rod's document, and that seems to have resolved the issue. I did do that previously, but after setting the "r8168.aspm=0 r8168.eee_enable=0 pcie_aspm=off loglevel=3" kernel parameters in /etc/default/grub I previously had neglected to run "sudo update-grub". So the kernel parameters were not actually applied previously. When I worked through it this time I did that and that seems to have made a significant difference.

Rod: Your detailed document was extremely helpful. It might be worth adding a small blurb about editing /etc/default/grub and running sudo update-grub to get them to stick, or point folks to an existing location where that procedure is documented. I struggled to find a canonical "clean" location of documentation for how to do that. askubuntu.com/questions/19486/how-do-i-a...ernel-boot-parameter was the closest I could find.

But this issue is resolved for me now. Thanks so much Rod and Peter!

I wonder how much of the improvement is changing the driver and how much is 
just disabling EEE  and ASPM  (either of which would be fatal for network latency)

Maybe the old driver does not give you access to those settings...
 

I can try to isolate that and I'll let you know.

shasse wrote:

Rod: Your detailed document was extremely helpful. It might be worth adding a small blurb about editing /etc/default/grub and running sudo update-grub to get them to stick, or point folks to an existing location where that procedure is documented. I struggled to find a canonical "clean" location of documentation for how to do that. askubuntu.com/questions/19486/how-do-i-a...ernel-boot-parameter was the closest I could find.
 

There is an easier way to do this. The Linuxcnc ISO includes grub-customizer (finally in the debian bookworm repository) which allows you to edit grub settings in a Graphical environment and bypasses the need to update-grub eg.
sudo apt install grub-customizer (if not using the Linuxcnc ISO)
sudo grub-customizer

Using grub-customizer is covered under the heading optional steps. I added some additional detail about EEE and ASPM
Please let me know if it needs changing
docs.google.com/document/d/1jeV_4VKzVmOI...diY/edit?usp=sharing