libvirt users - Apr 2010 - That the Linux bridge configuration does not work afer I upgraded the kernel to 2.6.33.2.

Hello,
    When I use a standard Redhat kernel, it's ok. Everything's working
right.
    That the Linux bridge configuration does not work afer I upgraded the kernel
to
2.6.33.2.
    Why?

[root at node78 ~]# cat /etc/issue
Red Hat Enterprise Linux Server release 5.5 (Tikanga)
Kernel \r on an \m

[root at node78 ~]# uname -a
Linux node78 2.6.33.2 #1 SMP Wed Apr 14 10:10:29 CST 2010 x86_64 x86_64 x86_64
GNU/Linux

[root at node78 ~]# cat /etc/sysconfig/selinux
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - SELinux is fully disabled.
SELINUX=disabled
# SELINUXTYPE= type of policy in use. Possible values are:
# targeted - Only targeted network daemons are protected.
# strict - Full SELinux protection.
SELINUXTYPE=targeted

[root at node78 ~]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination

[root at node78 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
# Intel Corporation 80003ES2LAN Gigabit Ethernet Controller (Copper)
DEVICE=eth0
HWADDR=00:15:17:11:16:18
BRIDGE=br0
NM_CONTROLLED=no
ONBOOT=yes

[root at node78 ~]# cat /etc/sysconfig/network-scripts/ifcfg-br0
DEVICE=br0
TYPE=Bridge
BOOTPROTO=static
BROADCAST=192.168.0.255
IPADDR=192.168.0.78
NETMASK=255.255.255.0
NETWORK=192.168.0.0
DELAY=0
NM_CONTROLLED=no
ONBOOT=yes

[root at node78 ~]#cd /usr/src/
[root at node78 ~]#tar jxf linux-2.6.33.2.tar.bz2
[root at node78 ~]#ln -s linux-2.6.33.2 linux
[root at node78 ~]#cd linux
[root at node78 ~]#cp /boot/config-2.6.18-164.el5
/usr/src/linux-2.6.33.2/.config
[root at node78 ~]#make menuconfig
(add the option "enable deprecated sysfs feathures to support old userspace
tools")
[root at node78 ~]#make && make modules && make modules_install
&& make install


[root at node78 ~]# ifconfig
br0 Link encap:Ethernet HWaddr 00:15:17:11:16:18
inet addr:192.168.0.78 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::215:17ff:fe11:1618/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7217 errors:0 dropped:0 overruns:0 frame:0
TX packets:273 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:738606 (721.2 KiB) TX bytes:36168 (35.3 KiB)

eth0 Link encap:Ethernet HWaddr 00:15:17:11:16:18
inet6 addr: fe80::215:17ff:fe11:1618/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7490 errors:0 dropped:0 overruns:0 frame:0
TX packets:304 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:866112 (845.8 KiB) TX bytes:42312 (41.3 KiB)
Memory:b8820000-b8840000

eth1 Link encap:Ethernet HWaddr 00:15:17:11:16:19
inet addr:10.0.7.78 Bcast:10.255.255.255 Mask:255.0.0.0
inet6 addr: fe80::215:17ff:fe11:1619/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:4 errors:0 dropped:0 overruns:0 frame:0
TX packets:59 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1056 (1.0 KiB) TX bytes:10982 (10.7 KiB)
Memory:b8800000-b8820000

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:1831 errors:0 dropped:0 overruns:0 frame:0
TX packets:1831 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3576260 (3.4 MiB) TX bytes:3576260 (3.4 MiB)

[root at node78 ~]# ifconfig vmbr0
vmbr0: error fetching interface information: Device not found

Best Regards,
Frank