Bug 700358

Summary:	boot vm with multiple nics,there are only one nic is available
Product:	Red Hat Enterprise Linux 5	Reporter:	Xiaoqing Wei <xwei>
Component:	kvm	Assignee:	Virtualization Maintenance <virt-maint>
Status:	CLOSED NOTABUG	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	5.7	CC:	juzhang, michen, mkenneth, virt-maint
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-05-10 03:35:16 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Xiaoqing Wei 2011-04-28 08:17:55 UTC

Description of problem:
boot vm with multiple nics,there are only one nic is available  

Version-Release number of selected component (if applicable):
kvm-83-231.el5

How reproducible:
almost

Steps to Reproduce:
1.boot a guest with multiple nic
qemu-kvm ... 
-net nic,vlan=0,model=rtl8139,macaddr=9a:ef:33:43:be:ab \
-net tap,vlan=0,ifname=t0-113806-qvX,script=qemu-ifup,downscript=no \
-net nic,vlan=1,model=rtl8139,macaddr=9a:ed:33:43:20:f0 \
-net tap,vlan=1,ifname=t1-113806-qvd,script=qemu-ifup,downscript=no \
-net nic,vlan=2,model=rtl8139,macaddr=9a:ef:33:43:5f:c6 \
-net tap,vlan=2,ifname=t2-113806-qXd,script=qemu-ifup,downscript=no \
-net nic,vlan=3,model=rtl8139,macaddr=9a:ea:33:43:19:4a \
-net tap,vlan=3,ifname=t3-113806-vXd,script=qemu-ifup,downscript=no \
-m 4096 -smp 4,cores=1,threads=1,sockets=4 -cpu qemu64,+sse2 -soundhw ac97 -spice port=8000,disable-ticketing -qxl 1 -rtc-td-hack -M rhel5.6.0 -boot c -usbdevice tablet -no-kvm-pit-reinjection

2.ifconfig to verify all nic got a ip.
3.ping each ip that guest have.always only one ip address can be reached by ping 
  
Actual results:
always only one address available

Expected results:
all nic work well

Additional info:
host info :
kernel 2.6.18-238.el5
kmod-kvm-83-231.el5
kvm-tools-83-231.el5
kvm-83-231.el5

full cmd :
qemu-kvm -name rhel61-64 -monitor stdio -serial unix:/tmp/serial-20110427-113806-qvXd,server,nowait -drive file=/usr/local/staf/test/RHEV/kvm/autotest/client/tests/kvm/images/RHEL-Server-6.1-64.qcow2,index=0,if=ide,media=disk,cache=none,format=qcow2 \
-net nic,vlan=0,model=rtl8139,macaddr=9a:ef:33:43:be:ab \
-net tap,vlan=0,ifname=t0-113806-qvXd,script=/usr/local/staf/test/RHEV/kvm/autotest-devel/client/tests/kvm/scripts/qemu-ifup,downscript=no \
-net nic,vlan=1,model=rtl8139,macaddr=9a:ed:33:43:20:f0 \
-net tap,vlan=1,ifname=t1-113806-qXd,script=/usr/local/staf/test/RHEV/kvm/autotest-devel/client/tests/kvm/scripts/qemu-ifup,downscript=no \
-net nic,vlan=2,model=rtl8139,macaddr=9a:ef:33:43:5f:c6 \
-net tap,vlan=2,ifname=t2-113806-qvd,script=/usr/local/staf/test/RHEV/kvm/autotest-devel/client/tests/kvm/scripts/qemu-ifup,downscript=no \
-net nic,vlan=3,model=rtl8139,macaddr=9a:ea:33:43:19:4a \
-net tap,vlan=3,ifname=t3-113806-qvX,script=/usr/local/staf/test/RHEV/kvm/autotest-devel/client/tests/kvm/scripts/qemu-ifup,downscript=no -m 4096 -smp 4,cores=1,threads=1,sockets=4 -cpu qemu64,+sse2 -soundhw ac97 -spice port=8000,disable-ticketing -qxl 1 -rtc-td-hack -M rhel5.6.0 -boot c -usbdevice tablet -no-kvm-pit-reinjection

guest os:rhel6.1-64

other info
if remove the available nic from qemu monitor ,
one of the unavailable nics will available

Comment 1 Xiaoqing Wei 2011-04-28 08:20:28 UTC

(qemu) info pci
  Bus  0, device   0, function 0:
    Host bridge: PCI device 8086:1237
  Bus  0, device   1, function 0:
    ISA bridge: PCI device 8086:7000
  Bus  0, device   1, function 1:
    IDE controller: PCI device 8086:7010
      BAR4: I/O at 0xc000 [0xc00f].
  Bus  0, device   1, function 2:
    USB controller: PCI device 8086:7020
      IRQ 11.
      BAR4: I/O at 0xc020 [0xc03f].
  Bus  0, device   1, function 3:
    Bridge: PCI device 8086:7113
      IRQ 9.
  Bus  0, device   2, function 0:
    Class 0780: PCI device 1b36:0105
      IRQ 10.
      BAR0: I/O at 0xc040 [0xc04f].
      BAR1: 32 bit memory at 0xc1000000 [0xc100ffff].
  Bus  0, device   3, function 0:
    VGA controller: PCI device 1b36:0100
      IRQ 11.
      BAR0: 32 bit memory at 0xc4000000 [0xc7ffffff].
      BAR1: 32 bit memory at 0xc8000000 [0xc8000fff].
      BAR2: 32 bit memory at 0xc8002000 [0xc8003fff].
      BAR3: I/O at 0xc050 [0xc057].
  Bus  0, device   4, function 0:
    Ethernet controller: PCI device 10ec:8139
      IRQ 11.
      BAR0: I/O at 0xc100 [0xc1ff].
      BAR1: 32 bit memory at 0xc8004000 [0xc80040ff].
  Bus  0, device   5, function 0:
    Ethernet controller: PCI device 10ec:8139
      IRQ 10.
      BAR0: I/O at 0xc200 [0xc2ff].
      BAR1: 32 bit memory at 0xc8005000 [0xc80050ff].
  Bus  0, device   6, function 0:
    Ethernet controller: PCI device 10ec:8139
      IRQ 10.
      BAR0: I/O at 0xc300 [0xc3ff].
      BAR1: 32 bit memory at 0xc8006000 [0xc80060ff].
  Bus  0, device   7, function 0:
    Ethernet controller: PCI device 10ec:8139
      IRQ 11.
      BAR0: I/O at 0xc400 [0xc4ff].
      BAR1: 32 bit memory at 0xc8007000 [0xc80070ff].
  Bus  0, device   8, function 0:
    Audio controller: PCI device 8086:2415
      IRQ 11.
      BAR0: I/O at 0xc800 [0xcbff].
      BAR1: I/O at 0xcc00 [0xccff].
  Bus  0, device   9, function 0:
    RAM controller: PCI device 1af4:1002
      IRQ 10.
      BAR0: I/O at 0xcd00 [0xcd1f].
(qemu) 



(qemu) info network
VLAN 0 devices:
  tap.0: ifname=t0-113806-qvXd,script=/usr/local/staf/test/RHEV/kvm/autotest-devel/client/tests/kvm/scripts/qemu-ifup,downscript=no
  rtl8139.0: model=rtl8139,macaddr=9a:ef:33:43:be:ab
VLAN 1 devices:
  tap.1: ifname=t1-113806-qXd,script=/usr/local/staf/test/RHEV/kvm/autotest-devel/client/tests/kvm/scripts/qemu-ifup,downscript=no
  rtl8139.1: model=rtl8139,macaddr=9a:ed:33:43:20:f0
VLAN 2 devices:
  tap.2: ifname=t2-113806-qvd,script=/usr/local/staf/test/RHEV/kvm/autotest-devel/client/tests/kvm/scripts/qemu-ifup,downscript=no
  rtl8139.2: model=rtl8139,macaddr=9a:ef:33:43:5f:c6
VLAN 3 devices:
  tap.3: ifname=t3-113806-qvX,script=/usr/local/staf/test/RHEV/kvm/autotest-devel/client/tests/kvm/scripts/qemu-ifup,downscript=no
  rtl8139.3: model=rtl8139,macaddr=9a:ea:33:43:19:4a
(qemu)