On 4/14/2025 3:18 PM, Marek Marczykowski-Górecki wrote:
Hi,
After updating to 6.14.2, the ethernet adapter is almost unusable, I get
over 30% packet loss.
Bisect says it's this commit:
commit 85f6414167da39e0da30bf370f1ecda5a58c6f7b
Author: Vitaly Lifshits <[email protected]>
Date: Thu Mar 13 16:05:56 2025 +0200
e1000e: change k1 configuration on MTP and later platforms
My system is Novacustom V540TU laptop with Intel Core Ultra 5 125H. And
the e1000e driver is running in a Xen HVM (with PCI passthrough).
Interestingly, I have also another one with Intel Core Ultra 7 155H
where the issue does not happen. I don't see what is different about
network adapter there, they look identical on lspci (but there are
differences about other devices)...
I see the commit above was already backported to other stable branches
too...
#regzbot introduced: 85f6414167da39e0da30bf370f1ecda5a58c6f7b
Thank you for this report.
Do you see the high packet loss without the virtualization?
Can you please share the lspci output?
Does your switch/link partner support flow control? if it is
configurable can you try to enable it?
Do you see any errors in dmesg related to the e1000e driver?
