ubuntu@gen2:~$ dpkg-query -W linux-cloud-tools-common
linux-cloud-tools-common 5.4.0-79.88
ubuntu@gen2:~$ systemctl status hv-kvp-daemon.service
● hv-kvp-daemon.service - Hyper-V KVP Protocol Daemon
Loaded: loaded (/lib/systemd/system/hv-kvp-daemon.service; enabled; vendor
preset: enab>
Active: active (running) since Thu 2021-07-08 16:06:00 UTC; 1min 3s ago
Main PID: 283 (hv_kvp_daemon)
Tasks: 1 (limit: 8334)
Memory: 3.2M
CGroup: /system.slice/hv-kvp-daemon.service
└─283 /usr/lib/linux-tools/5.8.0-1038-azure/hv_kvp_daemon -n
Jul 08 16:06:00 gen2 systemd[1]: Started Hyper-V KVP Protocol Daemon.
Jul 08 16:06:00 gen2 KVP[283]: KVP starting; pid is:283
Jul 08 16:06:00 gen2 KVP[283]: KVP LIC Version: 3.1
ubuntu@gen2:~$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-5.8.0-1038-azure
root=PARTUUID=14d21af5-beed-4a59-966b-cbcab58b7936 ro console=tty1
console=ttyS0 earlyprintk=ttyS0 panic=-1
So with normal instances this service is still running.
Upgraded to a different kernel
ubuntu@gen2:~$ cat /proc/cmdline
snapd_recovery_mode=cloudimg-rootfs console=tty1 console=ttyS0 earlyprintk=ttyS0
ubuntu@gen2:~$ systemctl status hv-kvp-daemon.service
● hv-kvp-daemon.service - Hyper-V KVP Protocol Daemon
Loaded: loaded (/lib/systemd/system/hv-kvp-daemon.service; enabled; vendor
preset: enabled)
Active: inactive (dead)
Condition: start condition failed at Thu 2021-07-08 16:12:39 UTC; 1min 45s ago
└─ ConditionKernelCommandLine=!snapd_recovery_mode was not met
Jul 08 16:12:39 gen2 systemd[1]: Condition check resulted in Hyper-V KVP
Protocol Daemon being skipped.
And the service is not running on this other kernel type.
This means that we are not regressing support for this service on stock
instance type & kernel type; and correctly prevent running it on the
other instance type & kernel type.
No other series apart from focal support this yet, hence this is now
verified. This change should remain in all other kernels, in case we
enable using those kernels on this instance type.
** Tags removed: verification-needed-bionic verification-needed-focal
verification-needed-groovy verification-needed-hirsute
** Tags added: verification-done-bionic verification-done-focal
verification-done-groovy verification-done-hirsute
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https://bugs.launchpad.net/bugs/1932081
Title:
Disable hv-kvp-daemon.service on certain instance types
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