bridge is freezing in conjunction to qemu-kvm

[Jürgen Sauer]

Binary package hint: bridge-utils

See cross referenc to:
https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/584048

Symptom is that the network off an virtualized server is freezed.

"As: angriukas wrote on 2010-06-02: #3
Probably network freeze occur because of adding (on guest start-up) created tun/tap interface to the bridge."

This is a huge problem.

[Jürgen Sauer (juergen-sauer)]

Log excerpt:

[ 1927.794336] br0: starting userspace STP failed, starting kernel STP
[ 8145.487525] type=1505 audit(1279203091.030:18): operation="profile_remove" pid=7165 name="libvirt-d9018107-db16-f1f1-e1b9-b8ec787282aa" namespace="root"
[ 8145.585758] br0: port 5(vnet3) entering disabled state
[ 8145.643386] device vnet3 left promiscuous mode
[ 8145.643391] br0: port 5(vnet3) entering disabled state
[ 8158.294350] br0: port 2(vnet0) entering disabled state
[ 8158.362301] device vnet0 left promiscuous mode
[ 8158.362309] br0: port 2(vnet0) entering disabled state
[ 8158.829476] type=1505 audit(1279203104.370:19): operation="profile_remove" pid=7171 name="libvirt-e49ac8b0-5417-4621-ae80-83272169f6e2" namespace="root"
[ 8160.494446] br0: port 4(vnet2) entering disabled state
[ 8160.602287] device vnet2 left promiscuous mode
[ 8160.602295] br0: port 4(vnet2) entering disabled state
[ 8161.004029] type=1505 audit(1279203106.550:20): operation="profile_remove" pid=7175 name="libvirt-8a494d5a-4d33-421c-a670-39dfebf7996e" namespace="root"
[ 8182.485745] br0: port 3(vnet1) entering disabled state
[ 8182.563350] device vnet1 left promiscuous mode
[ 8182.563355] br0: port 3(vnet1) entering disabled state
[ 8183.812965] type=1505 audit(1279203129.360:21): operation="profile_remove" pid=7184 name="libvirt-1c1fed8d-24f4-41ca-aa48-36214eacbbd8" namespace="root"

After entering a bridge into "diabled state" without any reason or request the servers are gone.
Ouch!

[Alan Hoyle (alanh)]

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