Bug#986619: linux-image-5.10.0-5-amd64: bonding broken on 5.10.0-5 (5.10.26)

[Lauri Tirkkonen <lauri@hacktheplanet.fi>]

Package: src:linux
Version: 5.10.26-1
Severity: normal

Dear Maintainer,

I have a bonding setup as follows:

	% head -99 /etc/systemd/network/*
	==> /etc/systemd/network/bond0.netdev <==
	[NetDev]
	Name=bond0
	Kind=bond

	[Bond]
	Mode=active-backup
	PrimaryReselectPolicy=always
	MIIMonitorSec=1s

	==> /etc/systemd/network/bond0.network <==
	[Match]
	Name=bond0

	[Network]
	DHCP=yes
	LLMNR=false

	==> /etc/systemd/network/wired.network <==
	[Match]
	Name=enp*

	[Link]
	RequiredForOnline=no

	[Network]
	Bond=bond0
	PrimarySlave=true

	==> /etc/systemd/network/wireless.network <==
	[Match]
	Name=wlan*

	[Link]
	RequiredForOnline=no

	[Network]
	Bond=bond0

on 5.10.0-4, this works fine. On 5.10.0-5, networkd is able to get an
IPv4 address from DHCP on bond0, but not v6, and not even ping responses
arrive from my gateway. The underlying devices work fine on both kernel
versions.

I believe this is fixed in 5.10.27 with commit
36478a9ec5afd4efd031527d0371bf8f61e5aa91; see
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.27

Please update to 5.10.27 or backport the patch in question.

-- Package-specific info:
** Kernel log: boot messages should be attached

-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.0-4-amd64 (SMP w/8 CPU threads)
Locale: LANG=C, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-5.10.0-5-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.140
ii  kmod                                    28-1
ii  linux-base                              4.6

Versions of packages linux-image-5.10.0-5-amd64 recommends:
ii  apparmor             2.13.6-10
ii  firmware-linux-free  20200122-1

Versions of packages linux-image-5.10.0-5-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  extlinux                3:6.04~git20190206.bf6db5b4+dfsg1-3
ii  grub-efi-amd64          2.04-17
pn  linux-doc-5.10          <none>

Versions of packages linux-image-5.10.0-5-amd64 is related to:
pn  firmware-amd-graphics     <none>
pn  firmware-atheros          <none>
pn  firmware-bnx2             <none>
pn  firmware-bnx2x            <none>
pn  firmware-brcm80211        <none>
pn  firmware-cavium           <none>
pn  firmware-intel-sound      <none>
pn  firmware-intelwimax       <none>
pn  firmware-ipw2x00          <none>
pn  firmware-ivtv             <none>
ii  firmware-iwlwifi          20210315-2
pn  firmware-libertas         <none>
pn  firmware-linux-nonfree    <none>
ii  firmware-misc-nonfree     20210315-2
pn  firmware-myricom          <none>
pn  firmware-netxen           <none>
pn  firmware-qlogic           <none>
pn  firmware-realtek          <none>
pn  firmware-samsung          <none>
pn  firmware-siano            <none>
pn  firmware-ti-connectivity  <none>
pn  xen-hypervisor            <none>

-- no debconf information

-- 
Lauri Tirkkonen | lotheac @ IRCnet