This commit from upstream stable update leads to the issue.

commit 5e864d90b20803edf6bd44a99fb9afa7171785f2
Author: Atlas Yu <atlas...@canonical.com>
Date:   Thu Mar 28 13:51:52 2024 +0800

    r8169: skip DASH fw status checks when DASH is disabled
    
    On devices that support DASH, the current code in the "rtl_loop_wait" 
function
    raises false alarms when DASH is disabled. This occurs because the function
    attempts to wait for the DASH firmware to be ready, even though it's not
    relevant in this case.
    
    r8169 0000:0c:00.0 eth0: RTL8168ep/8111ep, 38:7c:76:49:08:d9, XID 502, IRQ 
86
    r8169 0000:0c:00.0 eth0: jumbo features [frames: 9194 bytes, tx 
checksumming: ko]
    r8169 0000:0c:00.0 eth0: DASH disabled
    ...
    r8169 0000:0c:00.0 eth0: rtl_ep_ocp_read_cond == 0 (loop: 30, delay: 10000).
    
    This patch modifies the driver start/stop functions to skip checking the 
DASH
    firmware status when DASH is explicitly disabled. This prevents unnecessary
    delays and false alarms.
    
    The patch has been tested on several ThinkStation P8/PX workstations.
    
    Fixes: 0ab0c45d8aae ("r8169: add handling DASH when DASH is disabled")
    Signed-off-by: Atlas Yu <atlas...@canonical.com>
    Reviewed-by: Heiner Kallweit <hkallwe...@gmail.com>
    Link: 
https://lore.kernel.org/r/20240328055152.18443-1-atlas...@canonical.com
    Signed-off-by: Jakub Kicinski <k...@kernel.org>

-- 
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Packages, which is subscribed to linux-signed-hwe-6.8 in Ubuntu.
https://bugs.launchpad.net/bugs/2080454

Title:
  NIC(r8169) didn't link up after resuming from suspend

Status in linux-signed-hwe-6.8 package in Ubuntu:
  New

Bug description:
  [Summary]

  During the SRU testing, I found a hp laptop always timeout after
  suspend test, after checking I found that the NIC didn't link up.

  Part of journal log as follows:
  Sep 12 11:13:01 ubuntu kernel: PM: suspend entry (s2idle)
  ...
  ...
  Sep 12 11:13:10 ubuntu kernel: PM: suspend exit
  ...
  Sep 12 11:13:14 ubuntu kernel: r8169 0000:02:00.1 enp2s0f1: PCI error (cmd = 
0x0407, status_errs = 0x0000)

  [Expected result]

  SRU test can continue after suspend test.

  [Actual result]

  SRU test times out and NIC is down.

  [Additional information]

  Following are the DUTs that are impacted.
  https://certification.canonical.com/hardware/202304-31463/

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: linux-image-6.8.0-44-generic 6.8.0-44.44~22.04.1
  ProcVersionSignature: Ubuntu 6.8.0-44.44~22.04.1-generic 6.8.12
  Uname: Linux 6.8.0-44-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82.6
  Architecture: amd64
  CasperMD5CheckMismatches: ./preseed/project.cfg
  CasperMD5CheckResult: fail
  Date: Thu Sep 12 11:16:43 2024
  DistributionChannelDescriptor:
   # This is the distribution channel descriptor for the OEM CDs
   # For more information see 
http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-stella-jammy-amd64-20230920-537
  InstallationDate: Installed on 2024-09-11 (0 days ago)
  InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - 
pc-stella-jammy-amd64-20230920-537
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-signed-hwe-6.8
  UpgradeStatus: No upgrade log present (probably fresh install)

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