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Bug 1029539 - Machine type rhel6.1.0 and balloon device cause migration fail from RHEL6.5 host to RHEL7.0 host
Summary: Machine type rhel6.1.0 and balloon device cause migration fail from RHEL6.5 ...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm
Version: 7.0
Hardware: x86_64
OS: Linux
high
medium
Target Milestone: rc
: ---
Assignee: Luiz Capitulino
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-11-12 14:50 UTC by Luiz Capitulino
Modified: 2014-06-18 03:41 UTC (History)
10 users (show)

Fixed In Version: qemu-kvm-1.5.3-20.el7
Doc Type: Bug Fix
Doc Text:
Clone Of: 1027561
Environment:
Last Closed: 2014-06-13 12:21:31 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Comment 1 Miroslav Rezanina 2013-11-28 07:34:45 UTC 
Fix included in qemu-kvm-1.5.3-20.el7
Comment 3 Qunfang Zhang 2013-12-16 09:48:11 UTC 
Reproduced the issue on qemu-kvm-1.5.3-19.el7. Verified pass on qemu-kvm-1.5.3-21.el7.

Steps:

1. Boot up a guest with balloon device with "-M rhel6.1.0" machine type on rhel6.5 host.

/usr/libexec/qemu-kvm -cpu SandyBridge -M rhel6.1.0 -enable-kvm -m 4096 -smp 2,sockets=2,cores=1,threads=1 -name rhel7.0-64 -uuid 9a0e67ec-f286-d8e7-0548-0c1c9ec93009 -nodefconfig -nodefaults -monitor stdio -rtc base=utc,clock=host,driftfix=slew -no-kvm-pit-reinjection -no-shutdown -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x7 -device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x4 -drive file=/mnt/rhel7.0-64-qzhang.qcow2,if=none,id=drive-disk0,format=qcow2,cache=none,id=disk0 -device virtio-blk-pci,bus=pci.0,addr=0x8,drive=drive-disk0,id=disk-0  -drive if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,drive=drive-ide0-1-0,bus=ide.0,unit=1,id=scsi-cdrom -netdev tap,id=hostnet0,vhost=on -device virtio-net-pci,netdev=hostnet0,id=net0,mac=44:37:e6:5d:6b:11,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -chardev socket,id=channel1,path=/tmp/helloworld1,server,nowait -device virtserialport,chardev=channel1,name=port1,bus=virtio-serial0.0,id=port1 -chardev socket,id=channel2,path=/tmp/helloworld2,server,nowait -device virtserialport,chardev=channel2,name=port2,bus=virtio-serial0.0,id=port2 -device usb-tablet,id=input0 -vnc :10 -vga std -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6  -drive if=none,id=drive-fdc0-0-0,format=raw,cache=none -global isa-fdc.driveA=drive-fdc0-0-0 -qmp tcp:0:5555,server,nowait -global PIIX4_PM.disable_s3=0 -global PIIX4_PM.disable_s4=0

2. Boot up the guest on 7.0 host (destination host) with -incoming tcp:0:5800.

3. Migrate guest to 7.0 host with balloon device attached. 

Result:
On destination host:
(qemu) 
(qemu) qemu-kvm: Features 0x30000002 unsupported. Allowed features: 0x51000002
qemu: warning: error while loading state for instance 0x0 of device '0000:00:06.0/virtio-balloon'
load of migration failed


Verified this bug on qemu-kvm-1.5.3-21.el7 with balloon device attached with all the following machine types: -M rhel6.0.0/rhel6.1.0/rhel6.2.0/rhel6.3.0/rhel6.4.0/rhel6.5.0. Migration finishes successfully and destination qemu-kvm does not quit. Balloon guest memory to a smaller value, it works.  So this bug is fixed.
Comment 4 Ludek Smid 2014-06-13 12:21:31 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

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