Bug 1142290
| Summary: | guest is stuck when setting balloon memory with large guest-stats-polling-interval | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Luiz Capitulino <lcapitulino> |
| Component: | qemu-kvm | Assignee: | Luiz Capitulino <lcapitulino> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.1 | CC: | dyuan, hhuang, huding, jiahu, jmiao, juli, juzhang, knoel, lcapitulino, mzhan, rbalakri, virt-bugs, virt-maint, xfu |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | qemu-kvm-1.5.3-75.el7 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | 1140997 | Environment: | |
| Last Closed: | 2015-03-05 08:12:32 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1140997 | ||
| Bug Blocks: | |||
|
Description
Luiz Capitulino
2014-09-16 13:54:58 UTC
Fix included in qemu-kvm-1.5.3-75.el7 Reproduce:
Version of components:
qemu-kvm-1.5.3-68.el7.x86_64
Steps:
1, boot guest with -S and "-device virtio-balloon-pci,id=balloon0,bus=pci.0", and leave it as stop status.
# /usr/libexec/qemu-kvm -m 1G -machine pc-i440fx-rhel7.0.0,accel=kvm,usb=off -smp 2 -monitor stdio -spice port=5931,disable-ticketing -qmp tcp::8888,server,nowait -boot menu=on -drive file=/home/RHEL-Server-7.0-64-virtio.qcow2,if=none,id=drive-virtio-disk,format=qcow2,cache=none,aio=native,werror=stop,rerror=stop -device ide-drive,bus=ide.0,unit=0,wwn=0x5000c50015ea71bb,drive=drive-virtio-disk,id=virtio-disk,bootindex=1 -netdev tap,id=tap0,script=/etc/qemu-ifup,vhost=on -device virtio-net-pci,netdev=tap0,id=net0,mac=24:be:05:14:11:11,mq=on -drive file=/home/kernel-3.10.0-184.el7.iso,if=none,id=hd,format=raw,media=cdrom,readonly=on,cache=none,werror=stop,rerror=stop -device ide-drive,bus=ide.0,unit=1,wwn=0x5000c50015ea71ad,drive=hd,id=cdrom \
-device virtio-balloon-pci,id=balloon0,bus=pci.0 -S
2, run following command inside QMP.
$ telnet 10.66.82.225 8888
Trying 10.66.82.225...
Connected to 10.66.82.225.
Escape character is '^]'.
{"QMP": {"version": {"qemu": {"micro": 3, "minor": 5, "major": 1}, "package": " (qemu-kvm-1.5.3-68.el7)"}, "capabilities": []}}
{"execute":"qmp_capabilities"}
{"return": {}}
{"execute":"qom-list","arguments":{"path":"//machine/i440fx/pci.0/child[6]"},"id":"libvirt-87"}
{"execute":"qom-set","arguments":{"path":"//machine/i440fx/pci.0/child[6]","property":"guest-stats-polling-interval","value":21474836},"id":"libvirt-88"}
{"return": {}, "id": "libvirt-88"}
{"execute":"balloon","arguments":{"value":1073741824},"id":"libvirt-89"}
Results:
After step 2, qemu-kvm hang.
As above show, this bz has been reproduce.
===================
Verify:
Version of components:
qemu-kvm-1.5.3-75.el7.x86_64
Steps as above show, after step 2,
{"execute":"qom-set","arguments":{"path":"//machine/i440fx/pci.0/child[6]","property":"guest-stats-polling-interval","value":21474836},"id":"libvirt-88"}
{"return": {}, "id": "libvirt-88"}
{"execute":"balloon","arguments":{"value":1073741824},"id":"libvirt-89"}
{"return": {}, "id": "libvirt-89"}
qemu-kvm works well. So this bz has been verified.
===================
Verify on qemu-kvm-rhev-2.1.2-3.el7.x86_64, steps as above show, after step2, qemu-kvm works well. QMP works well, give info as followings:
# telnet 10.66.8.240 8888
Trying 10.66.8.240...
Connected to 10.66.8.240.
Escape character is '^]'.
{"QMP": {"version": {"qemu": {"micro": 2, "minor": 1, "major": 2}, "package": " (qemu-kvm-rhev-2.1.2-3.el7)"}, "capabilities": []}}
{"execute":"qmp_capabilities"}
{"return": {}}
{"execute":"qom-set","arguments":{"path":"//machine/i440fx/pci.0/child[6]","property":"guest-stats-polling-interval","value":21474836},"id":"libvirt-88"}
{"return": {}, "id": "libvirt-88"}
{"execute":"balloon","arguments":{"value":1073741824},"id":"libvirt-89"}
{"return": {}, "id": "libvirt-89"}
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, 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://rhn.redhat.com/errata/RHSA-2015-0349.html |