linux-kernel - [REGRESSION] - BROKEN NETWORKING Re: Linux 6.16.3

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Message-ID: <cfd4d3bd-cd0e-45dc-af9b-b478a56f8942@gmail.com>
Date: Sun, 24 Aug 2025 11:31:01 -0700
From: Kyle Sanderson <kyle.leet@...il.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
 torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, jslaby@...e.cz
Subject: [REGRESSION] - BROKEN NETWORKING Re: Linux 6.16.3

On 8/23/2025 7:51 AM, Greg Kroah-Hartman wrote:
> I'm announcing the release of the 6.16.3 kernel.
> 
> All users of the 6.16 kernel series that use the ext4 filesystem should
> upgrade.
> 
> The updated 6.16.y git tree can be found at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-6.16.y
> and can be browsed at the normal kernel.org git web browser:
> 	https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary
> 
> thanks,
> 
> greg k-h

Hi Greg,

Thanks for maintaining these as always. For the first time in a long 
time, I booted the latest stable (6.15.x -> 6.16.3) and somehow lost my 
networking. It looks like there is a patch from Intel (reported by AMD) 
that did not make it into stable 6.16.

e67a0bc3ed4fd8ee1697cb6d937e2b294ec13b5e - ixgbe
https://lore.kernel.org/all/94d7d5c0bb4fc171154ccff36e85261a9f186923.1755661118.git.calvin@wbinvd.org/ 
- i40e

This asset is a quad-port embedded Intel NIC, previously eno1..4, now 
eno1np0, eno2np1, eno3np0, eno4np1.

Seems like there's a bit of a debate right now over should this get 
carried in the tree (this 1/4 state stuff is no good). Anyway, upgrading 
the kernel broke my networking, and because this is carried in 6.17-rc3 
for ixgbe it will break again. I honestly don't care if it's some 
ridiculous systemd thing or the kernel that fixes this, just that 
there's a note on how to migrate for the common man (and that there is a 
material change to how interfaces are exposed).

Kyle.