Mike wrote: > Izik Eidus schrieb: > >> Mike wrote: >> >>> Hello, >>> I have a problem with my virtual machines. I am using kvm53 >>> on an AMD Athlon(tm) 64 X2 Dual Core Processor 5000+. >>> As distribution I use Ubuntu server 7.10. >>> As kernel I use Linux 2.6.22-14-server #1 SMP Sun Oct 14 22:09:15 GMT >>> 2007 x86_64 GNU/Linux. >>> >>> I have 3 different vms running. At the beginning they all work >>> without a problem. >>> Then, after one moment to another one or more stop working. >>> I did a ping test to all the machines, the vm with the failure stops >>> pinging. >>> The result from external ping: Destination host unreachable. >>> The same result from a ping onto the main server. >>> >>> Here are my configuration files: >>> cat /etc/qemu-ifup >>> #!/bin/sh >>> /sbin/ifconfig $1 0.0.0.0 promisc up >>> /usr/sbin/brctl addif br0 $1 >>> sleep 2 >>> ------------------------------------------------------------------------ >>> cat /etc/network/interfaces >>> auto lo >>> iface lo inet loopback >>> >>> auto br0 >>> iface br0 inet static >>> address 195.24.77.169 >>> netmask 255.255.255.0 >>> gateway 195.24.77.1 >>> bridge_ports eth0 >>> bridge_stp off >>> bridge_maxwait 5 >>> ------------------------------------------------------------------------ >>> I use scripts for starting the vms: >>> kvm -hda apache.img -hdb apache_storage.img -m 512 -boot c -net >>> nic,vlan=0,macaddr=00:16:3e:00:00:01 -net tap -nographic -daemonize >>> kvm -hda postfix.img -m 512 -boot c -net >>> nic,vlan=0,macaddr=00:16:3e:00:00:12 -net tap -nographic -daemonize >>> kvm -hda openvpn.img -m 256 -boot c -net >>> nic,vlan=0,macaddr=00:16:3e:00:00:03 -net tap -nographic -daemonize >>> ------------------------------------------------------------------------ >>> The tapN devices are being created at the startup of the vms. >>> >>> When I run dmesg I have this: >>> [ 112.390943] br0: port 2(tap1) entering learning state >>> [ 112.391919] br0: port 3(tap0) entering learning state >>> [ 112.397605] br0: port 4(tap2) entering learning state >>> [ 122.674313] tap0: no IPv6 routers present >>> [ 122.729185] tap1: no IPv6 routers present >>> [ 122.843901] tap2: no IPv6 routers present >>> [ 123.336081] kvm: emulating exchange as write >>> [ 127.367940] br0: topology change detected, propagating >>> [ 127.367949] br0: port 4(tap2) entering forwarding state >>> [ 127.362971] br0: topology change detected, propagating >>> [ 127.362977] br0: port 2(tap1) entering forwarding state >>> [ 127.362978] br0: topology change detected, propagating >>> [ 127.362980] br0: port 3(tap0) entering forwarding state >>> >>> No indication of a problem, nowhere in the log files. >>> >>> I don't know if the vms are freezing, or the network forwarding stops >>> working. >>> I also activated "net.ipv4.conf.default.forwarding=1" >>> >>> I googled days for that problem, but without a result. >>> I hope that maybe you have a solution for this problem. That would be >>> great, because I prefer using kvm instead of other virtualization >>> systems. >>> >>> Thank you very much in advance, >>> Greetings from Luxembourg. >>> >>> Have a nice day, >>> Mike >>> >> it might be not the network that die, but the whole vm >> can you run the vms with -vnc ? (first vm -vnc :1 secoend vm -vnc :2 >> third vm -vnc :3) >> and try to connect to them with vncviewer and see if they are alive? >> >> > Thank you for your reply. > I can't connect to the vm if it has died, even with vnc. I tried this > already, no reply from the host. > I don't have physical access to the server because its located in a dc. > Only ssh to the host. > ok this mean there is bug in kvm for amd and it not realted to the network what is the guest that you use? is it 64/32?
------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
