Cannot S3 resume on a Ubuntu24.04 VM

[jiayuan-intel]

Describe the bug
When using Ubuntu24.04 as a User VM, it cannot resume after entering system S3 power state.

Platform
ASUS minipc PN64. RPL.

Codebase
ACRN-v3.3

Scenario
Shared scenario.

To Reproduce

1. Follow getting started guide, use Ubuntu24.04 as User VM and boot.
2. Enter User VM console, type 'echo mem > /sys/power/state' to enter system S3 state.
3. Enter Service VM console, type 'acrnd -t -d 3' to guest resume.
4. See 'active_all_vms: Unknown vm state 2' in Service VM console. S3 resume error.

Expected behavior
User VM should able to resume.

Additional context
When using Ubuntu22.04 as User VM, it will resume ok.

[haiwei-li]

Standard ubuntu 24.04 now is using branch 6.8.0-36.36 in https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble. The bug is triggered in:

This is fixed in c8fae27d141a32a1624d0d0d5419d94252824498 linux upstream.