Loading...

Details

Type: Bug
Resolution: Unresolved
Priority: Normal
Fix Version/s: None
Affects Version/s: rhel-9.3.0
Component/s: virtio-win / virtio-win-prewhql
Labels:
- MigratedToJIRA
- Reopened

Severity:
Normal
Keywords:

CustomerScenariosInitiative

Pool Team:

sst_virtualization_windows
Sub-System Group:

ssg_virtualization

Story Points:
5
Blocked:
False
Blocked Reason:

Hide

None

Show
None

Test Link:
https://polarion.engineering.redhat.com/polarion/#/project/RHELVIRT/workitem?id=VIRT-95542
Test Coverage:

Yes

Release Note Type:
Known Issue
Release Note Text:

Hide
.The virtio balloon driver sometimes does not work on Windows 10 VMs

Under certain circumstances, the virtio-balloon driver does not work correctly on virtual machines (VMs) that use a Windows 10 guest operating system. As a consequence, such VMs might not use their assigned memory efficiently.

Show
.The virtio balloon driver sometimes does not work on Windows 10 VMs Under certain circumstances, the virtio-balloon driver does not work correctly on virtual machines (VMs) that use a Windows 10 guest operating system. As a consequence, such VMs might not use their assigned memory efficiently.
Release Note Status:
Done

Architecture:

x86_64
Bugzilla Bug:
RHBZ: 2189948

SFDC Cases Counter:
SFDC Cases Links:

Description

Description of problem:
Boot up win10-64 guest with 30G memory, try to evict guest memory to a minimum value and then try to enlarge it to the maximum one, and then evict it to half of the maximum one, and then reboot guest os, after the system booted up and watch the balloon value, it was not ballooned to the expected value(15G), so seems that balloon doesn't work after os reboot.

Here is the qmp log before and after the system reboot.
```
2023-04-26 02:40:56:

{"execute": "query-balloon", "id": "lRp6Y5LN"}

2023-04-26 02:40:56: {"return":

{"actual": 18107858944}

, "id": "lRp6Y5LN"}
2023-04-26 02:41:11: {"timestamp":

{"seconds": 1682491271, "microseconds": 286694}

, "event": "BALLOON_CHANGE", "data": {"actual": 32212254720}}
2023-04-26 02:41:43: {"timestamp":

{"seconds": 1682491303, "microseconds": 607396}

, "event": "RESET", "data": {"guest": true, "reason": "guest-reset"}}
2023-04-26 02:41:43: {"timestamp":

{"seconds": 1682491303, "microseconds": 615880}

, "event": "RESET", "data": {"guest": true, "reason": "guest-reset"}}
2023-04-26 02:43:45: {"timestamp":

{"seconds": 1682491311, "microseconds": 66905}

, "event": "BALLOON_CHANGE", "data": {"actual": 32210157568}}
2023-04-26 02:43:45: {"timestamp":

{"seconds": 1682491312, "microseconds": 62397}

, "event": "BALLOON_CHANGE", "data": {"actual": 32208060416}}
2023-04-26 02:43:45:

{"execute": "query-balloon", "id": "11PU1Cgr"}

2023-04-26 02:43:45: {"return":

{"actual": 32208060416}

, "id": "11PU1Cgr"}
2023-04-26 02:43:55:

{"execute": "query-balloon", "id": "FUSSA9YL"}

2023-04-26 02:43:55: {"return":

{"actual": 32208060416}

, "id": "FUSSA9YL"}
2023-04-26 02:44:03:

{"execute": "query-balloon", "id": "VwuFkLts"}

2023-04-26 02:44:03: {"return":

{"actual": 32208060416}

, "id": "VwuFkLts"}
2023-04-26 02:44:12:

{"execute": "query-balloon", "id": "TNPdjEFX"}

2023-04-26 02:44:12: {"return":

{"actual": 32208060416}

, "id": "TNPdjEFX"}
2023-04-26 02:44:20:

{"execute": "query-balloon", "id": "CUF3X1hU"}

2023-04-26 02:44:20: {"return":

{"actual": 32208060416}

, "id": "CUF3X1hU"}
2023-04-26 02:44:28:

{"execute": "query-balloon", "id": "CDDg0jXH"}

2023-04-26 02:44:28: {"return":

{"actual": 32208060416}

, "id": "CDDg0jXH"}
2023-04-26 02:44:37:

{"execute": "query-balloon", "id": "i7zjcSx5"}

2023-04-26 02:44:37: {"return":

{"actual": 32208060416}

, "id": "i7zjcSx5"}
2023-04-26 02:44:45:

{"execute": "query-balloon", "id": "Pkd82nf3"}

2023-04-26 02:44:45: {"return":

{"actual": 32208060416}

, "id": "Pkd82nf3"}
2023-04-26 02:44:53:

{"execute": "query-balloon", "id": "agkGOKzR"}

2023-04-26 02:44:53: {"return":

{"actual": 32208060416}

, "id": "agkGOKzR"}
2023-04-26 02:45:02:

{"execute": "query-balloon", "id": "yEjAWK7X"}

2023-04-26 02:45:02: {"return":

{"actual": 32208060416}

, "id": "yEjAWK7X"}
2023-04-26 02:45:10:

{"execute": "query-balloon", "id": "xihgQ1Wg"}

2023-04-26 02:45:10: {"return":

{"actual": 32208060416}

, "id": "xihgQ1Wg"}
2023-04-26 02:45:18:

{"execute": "query-balloon", "id": "bBPNk1gV"}

2023-04-26 02:45:18: {"return":

{"actual": 32208060416}

, "id": "bBPNk1gV"}
```
Note:
The guest rebooted successfully and quickly.

Version-Release number of selected component (if applicable):
virtio-win-prewhql-0.1-236
kernel-5.14.0-302.el9.x86_64
qemu-kvm-8.0.0-1.el9.x86_64
seabios-bin-1.16.1-1.el9.noarch

How reproducible:
I tried on two hosts:
dell-per750-14: 4/10 (all logs: http://virtqetools.lab.eng.pek2.redhat.com/kvm_autotest_job_log/?jobid=7787589)
dell-per750-13: 1/10

Steps to Reproduce:
1. boot up win10-64 guest with balloon device(q35 + seabios)
-m 30720 \
-device virtio-balloon-pci,id=balloon0,bus=pcie-root-port-4,addr=0x0 \

2. in guest, install balloon driver

3. Run evict test to get the minimum memory of guests.
2023-04-26 02:39:13: {"execute": "balloon", "arguments":

{"value": 1048576}

, "id": "DHbP7HBM"}
2023-04-26 02:39:13: {"return": {}, "id": "DHbP7HBM"}
....
2023-04-26 02:40:00: {"timestamp":

{"seconds": 1682491172, "microseconds": 55184}

, "event": "BALLOON_CHANGE", "data": {"actual": 2919235584}}
2023-04-26 02:40:00:

{"execute": "query-balloon", "id": "FBLeXsgq"}

2023-04-26 02:40:00: {"return":

{"actual": 2919235584}

, "id": "FBLeXsgq"}

4. balloon memory back to the maximum one
2023-04-26 02:40:00: {"execute": "balloon", "arguments":

{"value": 32212254720}

, "id": "kfT5rtMt"}
2023-04-26 02:40:38:

{"execute": "query-balloon", "id": "RTgEDUyN"}

2023-04-26 02:40:38: {"return":

{"actual": 32212254720}

, "id": "RTgEDUyN"}

5. balloon memory to about half the size of the maximum one.
2023-04-26 02:40:45: {"execute": "balloon", "arguments":

{"value": 18107858944}

, "id": "lm8svpko"}
...
2023-04-26 02:40:56:

{"execute": "query-balloon", "id": "SGIc3MC5"}

2023-04-26 02:40:56: {"return":

{"actual": 18107858944}

, "id": "SGIc3MC5"}

6. reboot the guest.
023-04-26 02:41:11: {"timestamp":

{"seconds": 1682491271, "microseconds": 286694}

, "event": "BALLOON_CHANGE", "data": {"actual": 32212254720}}
2023-04-26 02:41:43: {"timestamp":

{"seconds": 1682491303, "microseconds": 607396}

, "event": "RESET", "data": {"guest": true, "reason": "guest-reset"}}
2023-04-26 02:41:43: {"timestamp":

{"seconds": 1682491303, "microseconds": 615880}

, "event": "RESET", "data": {"guest": true, "reason": "guest-reset"}}
2023-04-26 02:43:45: {"timestamp":

{"seconds": 1682491311, "microseconds": 66905}

, "event": "BALLOON_CHANGE", "data": {"actual": 32210157568}}
2023-04-26 02:43:45: {"timestamp":

{"seconds": 1682491312, "microseconds": 62397}

, "event": "BALLOON_CHANGE", "data": {"actual": 32208060416}}
2023-04-26 02:43:45:

{"execute": "query-balloon", "id": "11PU1Cgr"}

2023-04-26 02:43:45: {"return":

{"actual": 32208060416}

, "id": "11PU1Cgr"}
2023-04-26 02:43:55:

{"execute": "query-balloon", "id": "FUSSA9YL"}

2023-04-26 02:43:55: {"return":

{"actual": 32208060416}

, "id": "FUSSA9YL"}
2023-04-26 02:44:03:

{"execute": "query-balloon", "id": "VwuFkLts"}

2023-04-26 02:44:03: {"return":

{"actual": 32208060416}

, "id": "VwuFkLts"}
2023-04-26 02:44:12:

{"execute": "query-balloon", "id": "TNPdjEFX"}

2023-04-26 02:44:12: {"return":

{"actual": 32208060416}

, "id": "TNPdjEFX"}

Actual results:
The memory value came back to the maximum one.

Expected results:
After rebooting os, the memory keeps the value like before.

Additional info:

Attachments

Issue Links

external trackers

Polarion test case RHELVIRT/workitem?id=VIRT-95542

Red Hat Issue Tracker RHEL-464

Red Hat Issue Tracker RHELPLAN-155859

[virtio-win][balloon] balloon doesn't work after reboot os sometimes -win11/win10 guest

Details

Description

Attachments

Issue Links

Activity

People

Dates