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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"

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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've cross-checked
several times that the patch is really applied:

# uname -a
Linux XXXXX-mgmt-gw-XXXXXX 5.10.0-0.a.test-arm64 #1 SMP Debian 5.10.244-1a~test (2025-10-23) aarch64

$ fgrep usbnet-Report-link-up-even-when-the-interface-is-not.patch linux_5.10.244-1a~test_arm64.build
File series fully applied, ends at patch test/0001-usbnet-Report-link-up-even-when-the-interface-is-not.patch

But we still the same symptoms:

# ip l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
    link/ether e4:5f:01:3d:98:95 brd ff:ff:ff:ff:ff:ff
3: eth1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 1000
          ^^^^^^^^^^                                                   ^^^^^^^^^^
link/ether 2c:f7:f1:1b:eb:83 brd ff:ff:ff:ff:ff:ff
5: wg0: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1420 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/none 

Is there anything else I can do or extract while running under either
kernel, the one with this patch or the -36-?

Back on the -35- kernel for now.

Now I can also check further patches quicker as I now have the proper
arm64 package build setup to do so without wearing down the eMMC on
the production host nor with running out of disk space. :-)

		Regards, Axel
-- 
 ,''`.  |  Axel Beckert <abe@debian.org>, https://people.debian.org/~abe/
: :' :  |  Debian Developer, ftp.ch.debian.org Admin
`. `'   |  4096R: 2517 B724 C5F6 CA99 5329  6E61 2FF9 CD59 6126 16B5
  `-    |  1024D: F067 EA27 26B9 C3FC 1486  202E C09E 1D89 9593 0EDE

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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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