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Bug 2180032 - Logs are spammed with ' Domain id=7 is tainted: custom-ga-command' message [rhel-8.6.0.z]
Summary: Logs are spammed with ' Domain id=7 is tainted: custom-ga-command' message [r...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: libvirt
Version: 8.4
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Peter Krempa
QA Contact: Lili Zhu
URL:
Whiteboard:
Depends On: 2174447
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-03-20 15:17 UTC by RHEL Program Management Team
Modified: 2023-04-18 16:33 UTC (History)
9 users (show)

Fixed In Version: libvirt-8.0.0-5.9.module+el8.6.0+18552+b96c5a91
Doc Type: If docs needed, set a value
Doc Text:
Clone Of: 2174447
Environment:
Last Closed: 2023-04-18 16:33:27 UTC
Type: ---
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-152519 0 None None None 2023-03-21 05:47:29 UTC
Red Hat Product Errata RHSA-2023:1833 0 None None None 2023-04-18 16:33:45 UTC

Comment 4 Lili Zhu 2023-04-04 07:24:11 UTC 
Verify this bug with:
libvirt-8.0.0-5.9.module+el8.6.0+18552+b96c5a91.x86_64

1. prepare a guest with guest agent device
# virsh domtime rhel8.6 
Time: 1680592779

2. check the dominfo
# virsh dominfo rhel8.6 
Id:             1
Name:           rhel8.6
UUID:           c89b1255-a609-4ef8-8054-4aebb05e3d7e
OS Type:        hvm
State:          running
CPU(s):         8
CPU time:       276.7s
Max memory:     2883584 KiB
Used memory:    2097152 KiB
Persistent:     yes
Autostart:      disable
Managed save:   no
Security model: selinux
Security DOI:   0
Security label: system_u:system_r:svirt_t:s0:c166,c942 (enforcing)

3. check the vcpus about guest using qemu-agent-command
# virsh qemu-agent-command rhel8.6 '{"execute":"guest-get-vcpus"}'
{"return":[{"online":true,"can-offline":true,"logical-id":7},....

4. check the dominfo again
# virsh dominfo rhel8.6 
Id:             1
Name:           rhel8.6
UUID:           c89b1255-a609-4ef8-8054-4aebb05e3d7e
OS Type:        hvm
State:          running
CPU(s):         8
CPU time:       283.4s
Max memory:     2883584 KiB
Used memory:    2097152 KiB
Persistent:     yes
Autostart:      disable
Managed save:   no
Security model: selinux
Security DOI:   0
Security label: system_u:system_r:svirt_t:s0:c166,c942 (enforcing)
Messages:       tainted: custom guest agent control commands issued

5. check the log
# grep -ni tainted /var/log/libvirt/libvirtd.log
569:2023-04-04 07:20:58.730+0000: 31135: warning : qemuDomainObjTaintMsg:6401 : Domain id=1 name='rhel8.6' uuid=c89b1255-a609-4ef8-8054-4aebb05e3d7e is tainted: custom-ga-command
571:2023-04-04 07:20:58.730+0000: 31135: debug : qemuDomainLogAppendMessage:6766 : Append log message (vm='rhel8.6' message='2023-04-04 07:20:58.730+0000: Domain id=1 is tainted: custom-ga-command

6. repeat step 2 for 100 times
# for i in {1..100}; do virsh qemu-agent-command rhel8.6 '{"execute":"guest-get-vcpus"}'; done

7. check the log again
# grep -ni tainted /var/log/libvirt/libvirtd.log 
569:2023-04-04 07:20:58.730+0000: 31135: warning : qemuDomainObjTaintMsg:6401 : Domain id=1 name='rhel8.6' uuid=c89b1255-a609-4ef8-8054-4aebb05e3d7e is tainted: custom-ga-command
571:2023-04-04 07:20:58.730+0000: 31135: debug : qemuDomainLogAppendMessage:6766 : Append log message (vm='rhel8.6' message='2023-04-04 07:20:58.730+0000: Domain id=1 is tainted: custom-ga-command

(The tainted message is printed when invoking guest-agent-command for the first time. And no new logs about tainted messages printed for the later invoking, logs are not spammed)
Comment 8 errata-xmlrpc 2023-04-18 16:33:27 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Moderate: virt:rhel and virt-devel:rhel security and bug fix update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2023:1833
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