Public bug reported:
My VM was updated from 6.8.0-90 to 6.8.0-100 and rebooted.
That means, it is using linux-image-virtual (6.8.0-100.100).
Since then, an external machine cannot be woken up from this VM with the
wakeonlan utility. This sends broadcasts over port 9 containing the MAC
of the machine to wake up. I started that machine by hand and it does
not get the WOL packets when I observe them via:
tcpdump -i eth0 -nn -s 1500 -A 'port9' -v
The command shows no output when I call this on my Ubuntu VM:
wakeonlan xx:xx:xx:xx:xx:xx (with the MAC of the target).
This worked fine before.
There is no ufw in play. I have no physical machine to check, it is on a
VM under Proxmox Virtual Environment. Rolling back to 6.8.0-90 and
rebooting fixes the problem immediately.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.8.0-100-generic 6.8.0-100.100
ProcVersionSignature: Ubuntu 6.8.0-100.100-generic 6.8.12
Uname: Linux 6.8.0-100-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Feb 16 01:40 seq
crw-rw---- 1 root audio 116, 33 Feb 16 01:40 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
CRDA: N/A
CasperMD5CheckResult: pass
CloudArchitecture: x86_64
CloudID: none
CloudName: none
CloudPlatform: none
CloudSubPlatform: config
Date: Mon Feb 16 09:43:20 2026
InstallationDate: Installed on 2021-10-18 (1582 days ago)
InstallationMedia: Ubuntu-Server 20.04.3 LTS "Focal Fossa" - Release amd64
(20210824)
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lsusb:
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU Tablet
Lsusb-t:
/: Bus 001.Port 001: Dev 001, Class=root_hub, Driver=uhci_hcd/2p, 12M
|__ Port 001: Dev 002, If 0, Class=Human Interface Device, Driver=usbhid,
12M
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
PciMultimedia:
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm
XDG_RUNTIME_DIR=<set>
ProcFB: 0 virtio_gpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.8.0-100-generic
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro net.ifnames=0 biosdevname=0
RelatedPackageVersions:
linux-restricted-modules-6.8.0-100-generic N/A
linux-backports-modules-6.8.0-100-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.23
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: Upgraded to noble on 2024-09-04 (530 days ago)
dmi.bios.date: 11/13/2025
dmi.bios.release: 0.0
dmi.bios.vendor: Proxmox distribution of EDK II
dmi.bios.version: 4.2025.05-2
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-10.1
dmi.modalias:
dmi:bvnProxmoxdistributionofEDKII:bvr4.2025.05-2:bd11/13/2025:br0.0:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-10.1:cvnQEMU:ct1:cvrpc-i440fx-10.1:sku:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.version: pc-i440fx-10.1
dmi.sys.vendor: QEMU
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble
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https://bugs.launchpad.net/bugs/2141906
Title:
wake on lan does not work with 6.8.0-100 kernel any more
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