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[Xen-users] SLES10 SP1 - xen bridges break after update

Hello all,

I upgraded a SLES10 to SP1 yesterday, xen-3.0.4_13138-0.40.

I have dot1q setup there, 3 physical interfaces (eth0, eth6 and eth7)
each one on a different vlan.

I have this custom network-bridge script, common one, called from
xend-config.xsp:

#!/bin/bash

dir=$(dirname "$0")
"$dir/network-bridge" "$@" netdev=eth0 vifnum=0
"$dir/network-bridge" "$@" vifnum=6 bridge=devnw netdev=eth6
"$dir/network-bridge" "$@" vifnum=7 bridge=testnw netdev=eth7

At server reboots, no bridge at all comes up. If I launch it manually
afterwards, I get:

bornem2:~ # /etc/xen/scripts/custom-network-script start
    eth0      device: Intel Corporation 82547GI Gigabit Ethernet Controller
    eth0      configuration: eth-id-00:04:23:b8:1b:8a
    eth0      IP address: 172.17.8.14/24
    eth0      device: Intel Corporation 82547GI Gigabit Ethernet Controller
    eth0      configuration: eth-id-00:04:23:b8:1b:8a
Nothing to flush.
Nothing to flush.
Waiting for peth0 to negotiate link...    eth0
    eth0      configuration: eth-id-00:04:23:b8:1b:8a
    eth0      IP address: 172.17.8.14/24

Link veth6 is missing.
This may be because you have reached the limit of the number of interfaces
that the loopback driver supports.  If the loopback driver is a module, you
may raise this limit by passing it as a parameter (nloopbacks=<N>); if the
driver is compiled statically into the kernel, then you may set the
parameter
using loopback.nloopbacks=<N> on the domain 0 kernel command line.


Link veth7 is missing.
This may be because you have reached the limit of the number of
interfaces BLA BLA BLA

I am allowed up to 64 loopbacks, so this isn't the problem.

ifconfig looks like this, after launching the script manually:

bornem2:~ # ifconfig
eth0      Link encap:Ethernet  HWaddr 00:04:23:B8:1B:8A
          inet addr:172.17.8.14  Bcast:172.17.8.255  Mask:255.255.255.0
          inet6 addr: fe80::204:23ff:feb8:1b8a/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2020 errors:0 dropped:0 overruns:0 frame:0
          TX packets:251 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:1591615 (1.5 Mb)  TX bytes:37402 (36.5 Kb)

eth6      Link encap:Ethernet  HWaddr 00:0D:88:70:E1:ED
          inet6 addr: fe80::20d:88ff:fe70:e1ed/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1480 (1.4 Kb)  TX bytes:960 (960.0 b)
          Interrupt:22 Base address:0xb800

eth7      Link encap:Ethernet  HWaddr 00:0D:88:70:E1:EC
          inet6 addr: fe80::20d:88ff:fe70:e1ec/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1792 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:108037 (105.5 Kb)  TX bytes:960 (960.0 b)
          Interrupt:21 Base address:0xbc00

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:70 errors:0 dropped:0 overruns:0 frame:0
          TX packets:70 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:5450 (5.3 Kb)  TX bytes:5450 (5.3 Kb)

peth0     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:26906 errors:0 dropped:0 overruns:0 frame:0
          TX packets:42138 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:4683437 (4.4 Mb)  TX bytes:55161554 (52.6 Mb)
          Base address:0xac00 Memory:fc4e0000-fc500000

vif0.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:251 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2020 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:37402 (36.5 Kb)  TX bytes:1591615 (1.5 Mb)

vif5.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:39157 errors:0 dropped:0 overruns:0 frame:0
          TX packets:30386 errors:0 dropped:74 overruns:0 carrier:0
          collisions:0 txqueuelen:32
          RX bytes:73187258 (69.7 Mb)  TX bytes:4739158 (4.5 Mb)

vif8.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:5433 errors:0 dropped:0 overruns:0 frame:0
          TX packets:16816 errors:0 dropped:648 overruns:0 carrier:0
          collisions:0 txqueuelen:32
          RX bytes:501722 (489.9 Kb)  TX bytes:20133414 (19.2 Mb)

vlan503   Link encap:Ethernet  HWaddr 00:0D:88:70:E1:EC
          inet6 addr: fe80::20d:88ff:fe70:e1ec/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:492 (492.0 b)

vlan504   Link encap:Ethernet  HWaddr 00:0D:88:70:E1:ED
          inet6 addr: fe80::20d:88ff:fe70:e1ed/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:492 (492.0 b)

xenbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:890 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:36620 (35.7 Kb)  TX bytes:0 (0.0 b)


Well, has anyone seen this yet? What other info can I provide you guys
to better understand the problem? It worked perfect on SLES10 without SP1...

Thanks a lot.

fred

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