A lot of NIC driver error messages appear when powering off the machine.

[Kevin Yeh]

[Summary]

During the SRU testing, I found a Lenovo workstation has multiple NICs installed that failed to wake up from cold-reboot by rtc event. After some investigations, I found that it's because too many kernel message appear and slow down the power off.

We don't have any connection on those impacted NIC, so we still can access the machine, but I assume it should also be a regression for 6.8 kerenl.

Those error messages didn't be recorded by journalctl, so I just took a photo and converted them to text.

[Expected result]

SRU test can continue after cold-reboot

[Actual result]

Cold-reboot takes too long to power off that exceed the wake up time we set for rtc.

[Additional information]

Following are the DUTs that are impacted.
https://certification.canonical.com/hardware/202310-32275/

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 16:44:46 2024
DistributionChannelDescriptor:
 # This is the distribution channel descriptor for the OEM CDs
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-sutton-jammy-amd64-20240129-711
InstallationDate: Installed on 2024-09-11 (0 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - pc-sutton-jammy-amd64-20240129-711
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)

[AaronMa (mapengyu)]

@Kevin

Could you provide the full dmesg?

What is the lastest good kernel version?

[Kevin Yeh (kevinyeh)]

@Aaron

I just checked that it also happened on -40 kernel which is already in the update.
I only can confirm 6.5.0-1013-oem which is the GM kernel is good, since we always do restoring the system then dist-upgrade while testing.
Full dmesg log is attached.