Bug#1118465: Regression: linux-image-5.10.0-36-arm64 fails to bring up LAN7800 USB NIC: "NO-CARRIER" and "state DOWN"

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From	Salvatore Bonaccorso <carnil@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1118465: Regression: linux-image-5.10.0-36-arm64 fails to bring up LAN7800 USB NIC: "NO-CARRIER" and "state DOWN"
Date	Sat, 08 Nov 2025 22:00:01 +0100
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X-Original-Cc	Ben Hutchings <ben@decadent.org.uk>, Axel Beckert <axel@ethz.ch>
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Hi,

On Sat, Nov 08, 2025 at 06:33:17PM +0100, Axel Beckert wrote:
> Control: fixed -1 6.1.153-1
> 
> Hi Ben,
> 
> > Ben Hutchings wrote:
> > > Control: tag -1 upstream patch moreinfo
> > > 
> > > Does this patch fix it?
> > 
> > Thanks a lot for the prompt reply with a patch.
> > 
> > Unfortunately that patch does not seem to help.
> 
> I was locally at the host yesterday and experimented at bit. Something
> else helped: Using the latest linux-image-6.1.0-40-arm64 kernel from
> Debian 12 Bookworm (version 6.1.153-1) didn't show this issue.

Ok that is at least in part good news, myabe not yet or 5.10.y and
bullseye.

> I also see (only now) that there are linux-image-6.1.0-0.deb11.*
> packages available in the bullseye-security repo—albeit no ABI number
> 40 yet—so I'd say the way forward to close this bug report is Bullseye
> LTS switching to the 6.1 kernel series (which I assume is imminent
> anyways).
> 
> For our specific case the way forward will be the dist-upgrade of the
> whole host (not just the kernel) to at least Debian 12.

Note that linux-6.1 packages are not meant to replace the src:linux
(based on 5.10.y) but are somehow in a first stance a continuation of
the backports provided kernels from the upper suite of bullseye, as
backports is discontinued under LTS. But then, once bullseye moves
under freexian's ELTS as I understand there are provided several
stable series verisons from the upper suites as well in separate
packages.

Ben can probably explain better here.

IMHo if you can upgrade it is still the bet way forward that you
upgrade to at least bookworm, better trixie.

Regards,
Salvatore

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Bug#1118465: Regression: linux-image-5.10.0-36-arm64 fails to bring up LAN7800 USB NIC: "NO-CARRIER" and "state DOWN" Ben Hutchings <ben@decadent.org.uk> - 2025-10-21 22:30 +0200
  Processed: Re: Bug#1118465: Regression: linux-image-5.10.0-36-arm64  fails to bring up LAN7800 USB NIC: "NO-CARRIER" and "state DOWN" "Debian Bug Tracking System" <owner@bugs.debian.org> - 2025-10-21 22:30 +0200
  Bug#1118465: Regression: linux-image-5.10.0-36-arm64 fails to bring up LAN7800 USB NIC: "NO-CARRIER" and "state DOWN" Salvatore Bonaccorso <carnil@debian.org> - 2025-10-22 14:50 +0200
  Bug#1118465: Regression: linux-image-5.10.0-36-arm64 fails to bring up LAN7800 USB NIC: "NO-CARRIER" and "state DOWN" Axel Beckert <abe@debian.org> - 2025-10-23 16:50 +0200
    Bug#1118465: Regression: linux-image-5.10.0-36-arm64 fails to bring up LAN7800 USB NIC: "NO-CARRIER" and "state DOWN" Axel Beckert <abe@debian.org> - 2025-11-08 18:40 +0100
      Bug#1118465: Regression: linux-image-5.10.0-36-arm64 fails to bring up LAN7800 USB NIC: "NO-CARRIER" and "state DOWN" Salvatore Bonaccorso <carnil@debian.org> - 2025-11-08 22:00 +0100

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