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Bug 1252355 - cannot ping hostA from guest after doing migrate from hostA to hostB
Summary: cannot ping hostA from guest after doing migrate from hostA to hostB
Keywords:
Status: CLOSED DUPLICATE of bug 1247541
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm-rhev
Version: 7.2
Hardware: x86_64
OS: Unspecified
high
urgent
Target Milestone: rc
: ---
Assignee: jason wang
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-08-11 08:52 UTC by ShupingCui
Modified: 2016-05-16 04:08 UTC (History)
10 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-08-12 02:24:33 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description ShupingCui 2015-08-11 08:52:38 UTC 
Description of problem:
cannot ping hostA from guest after doing migrate from hostA to hostB

Version-Release number of selected component (if applicable):
Host A:
# rpm -q qemu-kvm-rhev
qemu-kvm-rhev-2.1.2-23.el7_1.8.x86_64

Host B:
# rpm -q qemu-kvm-rhev
qemu-kvm-rhev-2.3.0-16.el7.x86_64

How reproducible:
100%

Steps to Reproduce:
1. boot the vm on hostA
/usr/bin/qemu-kvm \
    -name 'virt-tests-vm1'  \
    -sandbox off  \
    -M pc-i440fx-rhel7.1.0  \
    -nodefaults  \
    -vga qxl  \
    -device qxl,id=video1,addr=0x1e \
    -device intel-hda,bus=pci.0,addr=03 \
    -device hda-duplex  \
    -chardev socket,id=qmp_id_qmpmonitor1,path=/tmp/monitor-qmpmonitor1-20150624-161230-hjOsg0YY,server,nowait \
    -mon chardev=qmp_id_qmpmonitor1,mode=control  \
    -chardev socket,id=qmp_id_catch_monitor,path=/tmp/monitor-catch_monitor-20150624-161230-hjOsg0YY,server,nowait \
    -mon chardev=qmp_id_catch_monitor,mode=control  \
    -chardev socket,id=serial_id_serial0,path=/tmp/serial-serial0-20150624-161230-hjOsg0YY,server,nowait \
    -device isa-serial,chardev=serial_id_serial0  \
    -chardev socket,id=seabioslog_id_20150624-161230-hjOsg0YY,path=/tmp/seabios-20150624-161230-hjOsg0YY,server,nowait \
    -device isa-debugcon,chardev=seabioslog_id_20150624-161230-hjOsg0YY,iobase=0x402 \
    -device ich9-usb-uhci1,id=usb1,bus=pci.0,addr=04 \
    -drive id=drive_image1,if=none,cache=none,snapshot=off,aio=native,format=qcow2,file=/mnt/nfs_images/rhel66-64-virtio.qcow2 \
    -device virtio-blk-pci,id=image1,drive=drive_image1,bootindex=0,bus=pci.0,addr=05 \
    -device virtio-net-pci,mac=9a:3c:6c:39:9e:35,id=idDaYy4T,vectors=4,netdev=iddF1fDf,bus=pci.0,addr=06  \
    -netdev tap,id=iddF1fDf \
    -m 4096  \
    -smp 1,maxcpus=1,cores=1,threads=1,sockets=1  \
    -cpu 'SandyBridge' \
    -device usb-tablet,id=usb-tablet1,bus=usb1.0,port=1  \
    -spice port=3000,password=123456,addr=0,image-compression=auto_glz,zlib-glz-wan-compression=auto,streaming-video=all,agent-mouse=on,playback-compression=on,ipv4  \
    -rtc base=utc,clock=host,driftfix=slew  \
    -boot order=cdn,once=c,menu=off,strict=off \
    -enable-kvm \
    -monitor stdio

2. ping hostA from guest
# ping $ip-hostA
(0% packet loss)

3. boot the vm on hostB
/usr/bin/qemu-kvm \
    -name 'virt-tests-vm1'  \
    -sandbox off  \
    -M pc-i440fx-rhel7.1.0  \
    -nodefaults  \
    -vga qxl  \
    -device qxl,id=video1,addr=0x1e \
    -device intel-hda,bus=pci.0,addr=03 \
    -device hda-duplex  \
    -chardev socket,id=qmp_id_qmpmonitor1,path=/tmp/monitor-qmpmonitor1-20150624-161230-hjOsg0YY,server,nowait \
    -mon chardev=qmp_id_qmpmonitor1,mode=control  \
    -chardev socket,id=qmp_id_catch_monitor,path=/tmp/monitor-catch_monitor-20150624-161230-hjOsg0YY,server,nowait \
    -mon chardev=qmp_id_catch_monitor,mode=control  \
    -chardev socket,id=serial_id_serial0,path=/tmp/serial-serial0-20150624-161230-hjOsg0YY,server,nowait \
    -device isa-serial,chardev=serial_id_serial0  \
    -chardev socket,id=seabioslog_id_20150624-161230-hjOsg0YY,path=/tmp/seabios-20150624-161230-hjOsg0YY,server,nowait \
    -device isa-debugcon,chardev=seabioslog_id_20150624-161230-hjOsg0YY,iobase=0x402 \
    -device ich9-usb-uhci1,id=usb1,bus=pci.0,addr=04 \
    -drive id=drive_image1,if=none,cache=none,snapshot=off,aio=native,format=qcow2,file=/mnt/nfs_images/rhel66-64-virtio.qcow2 \
    -device virtio-blk-pci,id=image1,drive=drive_image1,bootindex=0,bus=pci.0,addr=05 \
    -device virtio-net-pci,mac=9a:3c:6c:39:9e:35,id=idDaYy4T,vectors=4,netdev=iddF1fDf,bus=pci.0,addr=06  \
    -netdev tap,id=iddF1fDf \
    -m 4096  \
    -smp 1,maxcpus=1,cores=1,threads=1,sockets=1  \
    -cpu 'SandyBridge' \
    -device usb-tablet,id=usb-tablet1,bus=usb1.0,port=1  \
    -spice port=3000,password=123456,addr=0,image-compression=auto_glz,zlib-glz-wan-compression=auto,streaming-video=all,agent-mouse=on,playback-compression=on,ipv4  \
    -rtc base=utc,clock=host,driftfix=slew  \
    -boot order=cdn,once=c,menu=off,strict=off \
    -enable-kvm \
    -monitor stdio \
    -global qxl-vga.vgamem_mb=8 \
    -incoming tcp:0:5200

4. do live migration
(hostA)(qemu) migrate -d tcp:$ip-hostB:5200

5. ping hostA from guest after migration completed
# ping $ip-hostA


Actual results:
0 received, 100% packet loss

Expected results:
0% packet loss

Additional info:
Comment 1 ShupingCui 2015-08-11 08:54:54 UTC 
Cannot reproduce it on qemu-kvm-rhev-2.3.0-7.el7, but can meet it from qemu-kvm-rhev-2.3.0-8.el7, so this bug is a Regression.
Comment 2 juzhang 2015-08-11 08:57:50 UTC 
According to comment1, add regression keywords.
Comment 5 jason wang 2015-08-12 02:24:33 UTC 

*** This bug has been marked as a duplicate of bug 1247541 ***
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