Public bug reported:
We have installed kvm on Ubuntu 12.04 LTS Host 64 bits.
There are 4 VM guest running Endian Firewall (Community Edition), and
two Ubuntu 10.04 LTS servers. Aditionally 1 VM guest running Windows XP
SP3 32 bits.
Except the Endian Firewall, all VM has virtio drivers for ethernet and
disc I/O.
The problem only occurs on Windows XP VM. Aleatory the ethernet of this
VM is loosed, and the guest don't respond any ping, or access from any
port. The other linux VM has no problem, so aparently is not the
problem of Bridged network that we saw in other reported bugs.
* The impact is big on this VM because RDP freeze (because is lose
connectivity).
* All VM are using bridged networking.
* ONLY Windows XP VM lose conectiviy.
Configuration
---------------
Host:
CPU : AMD FX(tm)-8120 Eight-Core Processor
Memory: 8 GB
kvm --version
QEMU emulator version 1.0 (qemu-kvm-1.0), Copyright (c) 2003-2008 Fabrice
Bellard
ifconfig:
br0 Link encap:Ethernet direcciónHW 02:85:2a:0e:23:61
Direc. inet:192.168.2.50 Difus.:192.168.2.255 Másc:255.255.255.0
Dirección inet6: fe80::62a4:4cff:fe36:3650/64 Alcance:Enlace
ACTIVO DIFUSIÃN FUNCIONANDO MULTICAST MTU:1500 Métrica:1
Paquetes RX:766315 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:526557 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:0
Bytes RX:173489456 (173.4 MB) TX bytes:122487582 (122.4 MB)
br1 Link encap:Ethernet direcciónHW 00:02:2a:f1:98:4b
Direc. inet:192.168.31.250 Difus.:192.168.31.255 Másc:255.255.255.0
Dirección inet6: fe80::202:2aff:fef1:984b/64 Alcance:Enlace
ACTIVO DIFUSIÃN FUNCIONANDO MULTICAST MTU:1500 Métrica:1
Paquetes RX:20251 errores:0 perdidos:13 overruns:0 frame:0
Paquetes TX:6 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:0
Bytes RX:1025272 (1.0 MB) TX bytes:468 (468.0 B)
eth0 Link encap:Ethernet direcciónHW 60:a4:4c:36:36:50
Dirección inet6: fe80::62a4:4cff:fe36:3650/64 Alcance:Enlace
ACTIVO DIFUSIÃN FUNCIONANDO MULTICAST MTU:1500 Métrica:1
Paquetes RX:2567234 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:4425676 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:1000
Bytes RX:359975549 (359.9 MB) TX bytes:4920592181 (4.9 GB)
eth1 Link encap:Ethernet direcciónHW 00:02:2a:f1:98:4b
Dirección inet6: fe80::202:2aff:fef1:984b/64 Alcance:Enlace
ACTIVO DIFUSIÃN FUNCIONANDO MULTICAST MTU:1500 Métrica:1
Paquetes RX:2152595 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:1775224 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:1000
Bytes RX:1993489895 (1.9 GB) TX bytes:504955085 (504.9 MB)
lo Link encap:Bucle local
Direc. inet:127.0.0.1 Másc:255.0.0.0
Dirección inet6: ::1/128 Alcance:Anfitrión
ACTIVO BUCLE FUNCIONANDO MTU:16436 Métrica:1
Paquetes RX:3209934 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:3209934 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:0
Bytes RX:509044768 (509.0 MB) TX bytes:509044768 (509.0 MB)
tap0 Link encap:Ethernet direcciónHW 2e:39:8b:0d:56:8d
Dirección inet6: fe80::2c39:8bff:fe0d:568d/64 Alcance:Enlace
ACTIVO DIFUSIÃN FUNCIONANDO MULTICAST MTU:1500 Métrica:1
Paquetes RX:1512659 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:1520648 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:500
Bytes RX:649922309 (649.9 MB) TX bytes:303778199 (303.7 MB)
tap1 Link encap:Ethernet direcciónHW 42:05:70:5b:70:2c
Dirección inet6: fe80::4005:70ff:fe5b:702c/64 Alcance:Enlace
ACTIVO DIFUSIÃN FUNCIONANDO MULTICAST MTU:1500 Métrica:1
Paquetes RX:7 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:110369 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:500
Bytes RX:558 (558.0 B) TX bytes:15215756 (15.2 MB)
tap2 Link encap:Ethernet direcciónHW 56:74:0c:4c:73:6b
Dirección inet6: fe80::5474:cff:fe4c:736b/64 Alcance:Enlace
ACTIVO DIFUSIÃN FUNCIONANDO MULTICAST MTU:1500 Métrica:1
Paquetes RX:1775212 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:2139066 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:500
Bytes RX:504954149 (504.9 MB) TX bytes:1988787563 (1.9 GB)
tap3 Link encap:Ethernet direcciónHW 82:4f:d9:8c:fe:7a
Dirección inet6: fe80::804f:d9ff:fe8c:fe7a/64 Alcance:Enlace
ACTIVO DIFUSIÃN FUNCIONANDO MULTICAST MTU:1500 Métrica:1
Paquetes RX:1894552 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:1998208 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:500
Bytes RX:855437238 (855.4 MB) TX bytes:799568209 (799.5 MB)
tap4 Link encap:Ethernet direcciónHW 46:01:af:8e:51:cc
Dirección inet6: fe80::4401:afff:fe8e:51cc/64 Alcance:Enlace
ACTIVO DIFUSIÃN FUNCIONANDO MULTICAST MTU:1500 Métrica:1
Paquetes RX:2124784 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:1780176 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:500
Bytes RX:1434067154 (1.4 GB) TX bytes:263588971 (263.5 MB)
tap5 Link encap:Ethernet direcciónHW 12:32:ee:97:bf:99
Dirección inet6: fe80::1032:eeff:fe97:bf99/64 Alcance:Enlace
ACTIVO DIFUSIÃN FUNCIONANDO MULTICAST MTU:1500 Métrica:1
Paquetes RX:4399585 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:3249451 errores:0 perdidos:0 overruns:2010 carrier:0
colisiones:0 long.colaTX:500
Bytes RX:4663476724 (4.6 GB) TX bytes:1519401078 (1.5 GB)
tap6 Link encap:Ethernet direcciónHW 02:85:2a:0e:23:61
Dirección inet6: fe80::85:2aff:fe0e:2361/64 Alcance:Enlace
ACTIVO DIFUSIÃN FUNCIONANDO MULTICAST MTU:1500 Métrica:1
Paquetes RX:1426831 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:1246727 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:500
Bytes RX:141508663 (141.5 MB) TX bytes:315112961 (315.1 MB)
virbr0 Link encap:Ethernet direcciónHW f2:59:6c:07:25:f4
Direc. inet:192.168.122.1 Difus.:192.168.122.255 Másc:255.255.255.0
ACTIVO DIFUSIÃN MULTICAST MTU:1500 Métrica:1
Paquetes RX:0 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:0 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:0
Bytes RX:0 (0.0 B) TX bytes:0 (0.0 B)
/etc/network/interfaces:
auto eth0
iface eth0 inet manual
auto eth1
iface eth1 inet manual
auto br0
iface br0 inet static
address 192.168.2.50
network 192.168.2.0
netmask 255.255.255.0
broadcast 192.168.2.255
gateway 192.168.2.15
dns-nameservers 192.168.2.15
bridge_ports eth0
bridge_fd 9
bridge_hello 2
bridge_maxage 12
bridge_stp off
auto br1
iface br1 inet static
address 192.168.31.250
network 192.168.31.0
netmask 255.255.255.0
broadcast 192.168.31.255
bridge_ports eth1
bridge_fd 9
bridge_hello 2
bridge_maxage 12
bridge_stp off
We are executing KVM VMs from command line:
/usr/bin/kvm -hda /var/cache/convirt/vm_disks/endian.disk.xm -cdrom
/dev/cdrom -net nic,vlan=0,macaddr=00:16:3e:1a:6b:53 -net
tap,vlan=0,script=/etc/kvm/qemu-ifup-br0 -net
nic,vlan=1,macaddr=00:16:3e:1c:33:45 -net tap,vlan=1,script=/etc/kvm
/qemu-ifup-br0 -net nic,vlan=2,macaddr=00:16:3e:3e:84:b6 -net
tap,vlan=2,script=/etc/kvm/qemu-ifup-br1 -usb -boot c -m 512 -vnc :52
-name EFW -usbdevice tablet -uuid b1c10838-3cb2-b20c-fbf5-0cc5340b7c09
-smp 1 -monitor unix:/var/run/kvm/monitors/endian,server,nowait -pidfile
/var/run/kvm/pids/endian -daemonize
/usr/bin/kvm -cdrom /dev/cdrom -net
nic,vlan=0,macaddr=00:16:3e:0c:c7:70,model=virtio -net
tap,vlan=0,script=/etc/kvm/qemu-ifup-br0 -usb -boot c -m 512 -vnc :50
-uuid 11ce6593-d512-c069-3ea3-07fadf29c478 -name Ubuntu10.04_ldap
-usbdevice tablet -drive
file=/var/cache/convirt/vm_disks/Ubuntu10.04_l.disk01.xm,index=0,if=virtio,cache=none,media=disk
-drive
file=/var/cache/convirt/vm_disks/Ubuntu10.04_l.disk02.xm,index=1,if=virtio,cache=none,media=disk
-drive
file=/var/cache/convirt/vm_disks/Ubuntu10.04_l.disk03.xm,index=2,if=virtio,cache=none,media=disk
-smp 1 -k es -monitor
unix:/var/run/kvm/monitors/Ubuntu10.04_l,server,nowait -pidfile
/var/run/kvm/pids/Ubuntu10.04_l -daemonize
/usr/bin/kvm -cdrom /dev/cdrom -net
nic,vlan=0,macaddr=00:16:3e:5d:ee:52,model=virtio -net
tap,vlan=0,script=/etc/kvm/qemu-ifup-br0 -usb -boot c -m 512 -vnc :51
-uuid 6bb091c2-fc3a-9563-e428-229a6a2d8440 -name Ubuntu10.04_2
-usbdevice tablet -drive
file=/var/cache/convirt/vm_disks/Ubuntu10.04_2.disk.xm,index=0,if=virtio,cache=none,media=disk
-drive
file=/var/cache/convirt/vm_disks/Ubuntu10.04_2.disk2.xm,index=1,if=virtio,cache=none,media=disk
-smp 1 -k es -monitor
unix:/var/run/kvm/monitors/Ubuntu10.04_2,server,nowait -pidfile
/var/run/kvm/pids/Ubuntu10.04_2 -daemonize
/usr/bin/kvm -cdrom /dev/cdrom -net
nic,vlan=0,macaddr=00:16:3e:79:30:72,model=virtio -net
tap,vlan=0,script=/etc/kvm/qemu-ifup-br0 -usb -boot c -m 2048 -no-acpi
-vnc :53 -uuid ba5ad121-1844-ab94-223d-867e8eebb3dd -name WindowsXP
-usbdevice tablet -drive
file=/var/cache/convirt/vm_disks/WindowsXP.disk.xm,if=virtio,cache=none,media=disk
-smp 2 -k es -monitor unix:/var/run/kvm/monitors/WindowsXP,server,nowait
-pidfile /var/run kvm/pids/WindowsXP -daemonize
/usr/bin/kvm -cdrom /dev/cdrom -net
nic,vlan=0,macaddr=00:16:3e:6d:96:4c,model=virtio -net
tap,vlan=0,script=/etc/kvm/qemu-ifup-br0 -usb -boot c -m 512 -vnc :54
-uuid d01d0325-d9d5-1494-2b35-e8ce281c0a85 -name Ubuntu10.04_Nagios
-usbdevice tablet -drive
file=/var/cache/convirt/vm_disks/Ubuntu10.04_3.disk.xm,if=virtio,cache=none,media=disk
-smp 1 -k es -monitor
unix:/var/run/kvm/monitors/Ubuntu10.04_3,server,nowait -pidfile
/var/run/kvm/pids/Ubuntu10.04_3 -daemonize
brctl showmacs br0
port no mac addr is local? ageing timer
1 00:15:99:e4:bb:ee no 28.58
4 00:16:3e:0c:c7:70 no 20.44
2 00:16:3e:1a:6b:53 no 4.14
5 00:16:3e:5d:ee:52 no 0.77
7 00:16:3e:6d:96:4c no 0.77
6 00:16:3e:79:30:72 no 4.39
2 00:ff:b8:4d:fb:98 no 0.22
2 00:ff:d8:6e:6f:3f no 0.00
7 02:85:2a:0e:23:61 yes 0.00
6 12:32:ee:97:bf:99 yes 0.00
2 2e:39:8b:0d:56:8d yes 0.00
3 42:05:70:5b:70:2c yes 0.00
5 46:01:af:8e:51:cc yes 0.00
1 60:a4:4c:36:36:50 yes 0.00
4 82:4f:d9:8c:fe:7a yes 0.00
1 94:0c:6d:ec:7d:34 no 124.19
brctl showmacs br1
port no mac addr is local? ageing timer
1 00:02:2a:f1:98:4b yes 0.00
2 00:16:3e:3e:84:b6 no 0.00
1 00:26:4d:5b:20:9c no 3.44
1 00:30:88:1a:eb:e1 no 0.00
2 56:74:0c:4c:73:6b yes 0.00
We found a Workaround to this situation but is a very bad solution.
When the conectivity problem exists, we conect via VNC to the WindowsXP VM and
the conectivity is restored at once.
The VNC is connected via 192.168.2.50:5953 (via the HOST).
We tried to check the availability to connect to this port via nagios
check_tcp and always is functioning (even when the conectivity is
losed), so this is not functioning as a preventive measure.
Please, ask for any further information. Thanks.
** Affects: qemu-kvm (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1212051
Title:
Windows XP guest lose connectivity with bridged network
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