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Bug 1544738 - Migration with dataplane, qemu processor hang, vm hang and migration can't finish [rhel-7.4.z]
Summary: Migration with dataplane, qemu processor hang, vm hang and migration can't fi...
Keywords:
Status: CLOSED CANTFIX
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm-rhev
Version: 7.5
Hardware: All
OS: Linux
high
high
Target Milestone: rc
: ---
Assignee: Dr. David Alan Gilbert
QA Contact: xianwang
URL:
Whiteboard:
Depends On: 1520824
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-02-13 12:11 UTC by Oneata Mircea Teodor
Modified: 2022-03-13 14:42 UTC (History)
22 users (show)

Fixed In Version: qemu-kvm-rhev-2.9.0-16.el7_4.15
Doc Type: If docs needed, set a value
Doc Text:
Clone Of: 1520824
Environment:
Last Closed: 2019-02-07 13:50:36 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Knowledge Base (Solution) 3350241 0 None None None 2018-02-13 12:12:09 UTC

Description Oneata Mircea Teodor 2018-02-13 12:11:54 UTC 
This bug has been copied from bug #1520824 and has been proposed to be backported to 7.4 z-stream (EUS).
Comment 2 Miroslav Rezanina 2018-03-16 06:22:21 UTC 
Fix included in qemu-kvm-rhev-2.9.0-16.el7_4.15
Comment 4 xianwang 2018-03-19 06:20:53 UTC 
I have tried this scenario on the qemu-kvm-rhev-2.9.0-16.el7_4.15.ppc64le, the result is pass.

version:
host:
3.10.0-861.el7.ppc64le
qemu-kvm-rhev-2.9.0-16.el7_4.15.ppc64le
SLOF-20170724-2.git89f519f.el7.noarch

guest:
3.10.0-861.el7.ppc64le

Steps to Reproduce:
1.Boot a guest on src host, there are two scsi disks that with dataplane:
/usr/libexec/qemu-kvm -nodefaults -object iothread,id=iothread0 -device virtio-scsi-pci,bus=pci.0,addr=0x1f,id=scsi0,iothread=iothread0 -drive file=/home/xianwang/rhel75-ppc64le-virtio-scsi.qcow2,media=disk,if=none,cache=none,id=drive_sysdisk,aio=native,format=qcow2,werror=stop,rerror=stop -device scsi-hd,drive=drive_sysdisk,bus=scsi0.0,id=sysdisk,bootindex=0 -drive file=/home/xianwang/r1.qcow2,if=none,cache=none,id=drive_ddisk_2,aio=native,format=qcow2,werror=stop,rerror=stop -device scsi-hd,drive=drive_ddisk_2,bus=scsi0.0,id=ddisk_2 -monitor stdio -vga std -vnc :1 -m 4096 -chardev socket,id=console0,path=/tmp/console0,server,nowait -device spapr-vty,chardev=console0 

2.on dst host, boot a guest with the same qemu cli with src, appending -incoming tcp:0:5801

3.on src host, do migration
(qemu) migrate -d tcp:10.66.10.208:5801


Actual results:
Migration completed and vm works well on destination host
src:
(qemu) info migrate
Migration status: completed

dst:
(qemu) info status 
VM status: running
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