[Bug 2091744] Re: When /dev/vmbus/hv_kvp is not present, disable hv-kvp-daemon

This bug is awaiting verification that the linux/6.11.0-17.17 kernel in
-proposed solves the problem. Please test the kernel and update this bug
with the results. If the problem is solved, change the tag
'verification-needed-oracular-linux' to 'verification-done-oracular-
linux'. If the problem still exists, change the tag 'verification-
needed-oracular-linux' to 'verification-failed-oracular-linux'.


If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.


See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-oracular-linux-v2 verification-needed-oracular-linux

--
You received this bug notification because you are subscribed to linux
in Ubuntu.
Matching subscriptions: Bgg, Bmail, Nb
https://bugs.launchpad.net/bugs/2091744

Title:
When /dev/vmbus/hv_kvp is not present, disable hv-kvp-daemon

Status in linux package in Ubuntu:
In Progress
Status in linux source package in Noble:
Fix Committed
Status in linux source package in Oracular:
Fix Committed
Status in linux source package in Plucky:
In Progress

Bug description:
SRU Justification

[Impact]

Re-opening for Noble, Oracular, and current development cycle (Plucky)
as this appears to have accidentally been dropped.

* Previous LP bug: https://bugs.launchpad.net/bugs/2024900

* Commit from Jammy release: https://git.launchpad.net/~ubuntu-
kernel/ubuntu/+source/linux/+git/jammy/commit/debian/linux-cloud-
tools-common.hv-kvp-daemon.service?h=master-
next&id=7da99ea3a1a745f6fd0c8632ef89573437888af6

* Previous mailing list discussion:
https://lists.ubuntu.com/archives/kernel-team/2023-June/140646.html

Following description copied from original LP bug:

If the daemon is started and the vmbus is not present it will just
exit with an error: https://git.launchpad.net/~ubuntu-
kernel/ubuntu/+source/linux/+git/mantic/tree/tools/hv/hv_kvp_daemon.c#n1424

Thus, it would make sense to add
"ConditionPathExists=/dev/vmbus/hv_kvp" in linux-cloud-tools-
common.hv-kvp-daemon.service to prevent systemd from starting the
daemon if the device is not there.

[Test Plan]

Start an Azure cloud instance and check for /dev/vmbus/hv_kvp and that hv-kvp-daemon is running.
Start a non-Azure cloud instance and check that hv-kvp-daemon is not running.

[Regression potential]

Its possible that kv-hvp-daemon is not started when it should be.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2091744/+subscriptions