Re: AW: [Xen-users] Gutsy Xen 3.1 2.6.22-9-xen network-bridge problem

[Bart Verwilst <lists@xxxxxxxxxxx>]

Hi,

I can confirm that disabling tx offloading fixes the problem!
For gutsy ( in our case ), just add the following line at the bottom of your 
/etc/network/interfaces file:

up ethtool -K eth0 tx off

repeat for every interface ( i only have 1 :) )

Thanks a lot guys!

Kind regards,

Bart Verwilst

----- Original Message -----
From: "Emre Erenoglu" <erenoglu@xxxxxxxxx>
To: "Bart Verwilst" <lists@xxxxxxxxxxx>
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Sent: 17 August 2007 17:05:44 o'clock (GMT+0100) Europe/Berlin
Subject: Re: AW: [Xen-users] Gutsy Xen 3.1 2.6.22-9-xen network-bridge problem

Hi Bart,

I'm still at work but will be at home in 2 hours to test it. Hope it
works...

Emre


On 8/17/07, Bart Verwilst <lists@xxxxxxxxxxx> wrote:
>
> Hi,
>
> This post really made my day, as i'm having the same problem myself.
> Thanks for writing out the problem so clearly! I'm using the same kernel,
> and have been looking for an answer since yesterday myself.
> Could you please let us know whether the ethtool trick works?
> I'll try it as well as soon as i'm home in an hour or so, and let you guys
> know of the outcome!
>
> Thanks!
>
> Kind regards,
>
> Bart Verwilst
>
> ----- Original Message -----
> From: "Hinrich Aue" <hinrich.aue@xxxxxxxxxxxxxxxx>
> To: "Emre Erenoglu" <erenoglu@xxxxxxxxx>
> Cc: xen-users@xxxxxxxxxxxxxxxxxxx
> Sent: Friday, August 17, 2007 2:16:56 PM (GMT+0100) Europe/Berlin
> Subject: AW: [Xen-users] Gutsy Xen 3.1 2.6.22-9-xen network-bridge problem
>
> Yes. I thought that's in the link?
>
>
>
> Whatever, use that command ethtool - K eth0 tx off on your interfaces (on
> dom0).
>
>
>
> I don't know if that is necessary, but I use it on every interface /
> bridges.
>
> You can put that command into the xen networking scripts. Don't know
> exactly
> where.
>
>
>
> Hinrich
>
> _____
>
> Von: Emre Erenoglu [mailto:erenoglu@xxxxxxxxx]
> Gesendet: Freitag, 17. August 2007 14:05
> An: Hinrich Aue
> Cc: xen-users@xxxxxxxxxxxxxxxxxxx
> Betreff: Re: [Xen-users] Gutsy Xen 3.1 2.6.22-9-xen network-bridge problem
>
>
>
> Hi Hinrich,
>
>
>
> So do you think it's because of this checksum offloading? What shall I do
> to
> get rid of it? Couldn't understand from the message...
>
>
>
> would "ethtool - K eth0 tx off" be the right command?
>
>
>
> Thanks for your interest and Best regards,
>
>
>
> Emre
>
>
>
> On 8/17/07, Hinrich Aue <hinrich.aue@xxxxxxxxxxxxxxxx> wrote:
>
> I had the same problem. It's a checksum problem I guess. (was in my case)
>
>
>
> http://lists.xensource.com/archives/html/xen-users/2006-05/msg00817.html
>
>
>
> this might help (hopefully)
>
>
>
>
>
> _____
>
> Von: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] Im Auftrag von Emre
> Erenoglu
> Gesendet: Freitag, 17. August 2007 12:11
> An: xen-users@xxxxxxxxxxxxxxxxxxx
> Betreff: [Xen-users] Gutsy Xen 3.1 2.6.22-9-xen network-bridge problem
>
>
>
> Hi,
>
>
>
> I have a strange problem with my networking setup. I read all forums
> around
> the world where people had similar problems, but couldn't find a solution.
>
>
>
> I have an Attansic L1 gigeth chip on my mainboard. This chip works OK in
> stock Ubuntu Gutsy (development) 2.6.22-9-generic kernel.
>
>
>
> When I boot into Xen, and after the bridge is created, the network stops
> working. Some info:
>
>
>
> - If I do " /etc/xen/scripts/network-bridge stop "  then the network comes
> back...
>
> - I can ping sites, but can never "communicate" with them. For example, I
> can "telnet" to 22th port of an sshd server, receive the "welcome to xyz
> sshd server etc." but can never send any command. Same for telnet/http/ftp
> connections. The system also cannot resolve DNS names, but can still ping.
> Same thing happens inside the DomUs.
>
> - My /etc/xen/xend-config.sxp has " (network-script network-bridge) " and
> "
> (vif-script vif-bridge) " directives.
>
>
>
> ifconfig -a output:
>
>
>
> eth0      Link encap:Ethernet  HWaddr 00:18:F3:9D:6E:FC
>          inet addr: 192.168.1.2 <http://192.168.1.2/>   Bcast:
> 192.168.1.255
> <http://192.168.1.255/>   Mask: 255.255.255.0 <http://255.255.255.0/>
>          inet6 addr: fe80::218:f3ff:fe9d:6efc/64 Scope:Link
>          UP BROADCAST RUNNING  MTU:1500  Metric:1
>          RX packets:17016 errors:0 dropped:0 overruns:0 frame:0
>          TX packets:20307 errors:0 dropped:0 overruns:0 carrier:1
>          collisions:0 txqueuelen:1000
>          RX bytes:6377107 (6.0 MB)  TX bytes:9225065 (8.7 MB)
>
>
>
> lo        Link encap:Local Loopback
>          inet addr: 127.0.0.1 <http://127.0.0.1/>   Mask:255.0.0.0
> <http://255.0.0.0/>
>          inet6 addr: ::1/128 Scope:Host
>          UP LOOPBACK RUNNING  MTU:16436  Metric:1
>          RX packets:636 errors:0 dropped:0 overruns:0 frame:0
>          TX packets:636 errors:0 dropped:0 overruns:0 carrier:0
>          collisions:0 txqueuelen:0
>          RX bytes:11732 (11.4 KB)  TX bytes:11732 ( 11.4 KB)
>
>
>
> veth0     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
>          BROADCAST NOARP MULTICAST  MTU:1500  Metric:1
>          RX packets:18 errors:0 dropped:0 overruns:0 frame:0
>          TX packets:38 errors:0 dropped:0 overruns:0 carrier:0
>          collisions:0 txqueuelen:0
>          RX bytes:3614 (3.5 KB)  TX bytes:18219 (17.7 KB)
>
>
>
> veth1     Link encap:Ethernet  HWaddr 00:00:00:00:00:00
>          BROADCAST MULTICAST  MTU:1500  Metric:1
>          RX packets:0 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:0 (0.0 b)  TX bytes:0 (0.0 b)
>
>
>
> veth2     Link encap:Ethernet  HWaddr 00:00:00:00:00:00
>          BROADCAST MULTICAST  MTU:1500  Metric:1
>          RX packets:0 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:0 (0.0 b)  TX bytes:0 (0.0 b)
>
>
>
> veth3     Link encap:Ethernet  HWaddr 00:00:00:00:00:00
>          BROADCAST MULTICAST  MTU:1500  Metric:1
>          RX packets:0 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:0 (0.0 b)  TX bytes:0 (0.0 b)
>
>
>
> vif0.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
>          BROADCAST NOARP  MTU:1500  Metric:1
>          RX packets:38 errors:0 dropped:0 overruns:0 frame:0
>          TX packets:19 errors:0 dropped:0 overruns:0 carrier:0
>          collisions:0 txqueuelen:0
>          RX bytes:18219 (17.7 KB)  TX bytes:3684 (3.5 KB)
>
>
>
> vif0.1    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
>          BROADCAST MULTICAST  MTU:1500  Metric:1
>          RX packets:0 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:0 (0.0 b)  TX bytes:0 (0.0 b)
>
>
>
> vif0.2    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
>          BROADCAST MULTICAST  MTU:1500  Metric:1
>          RX packets:0 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:0 (0.0 b)  TX bytes:0 (0.0 b)
>
>
>
> vif0.3    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
>          BROADCAST MULTICAST  MTU:1500  Metric:1
>          RX packets:0 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:0 (0.0 b)  TX bytes:0 (0.0 b)
>
>
>
>
>
>
> When I run  "  network-bridge start ", the xenbr0 interface is created,
> brctl shows the bridge is created with two interfaces inside. But, network
> doesn't work. It seems that I can receive packets but not send.
>
>
>
> Syslog shows:
>
>
>
> atl1 0000:03:00.0: Unable to enable MSI: -1
> atl1 0000:03:00.0: eth0 link is up 100 Mbps full duplex
> eth0: no IPv6 routers present
> device vif0.0 entered promiscuous mode
> audit(1187308448.174:7): dev=vif0.0 prom=256 old_prom=0 auid=4294967295
> xenbr0: port 1(vif0.0) entering learning state
> atl1 0000:03:00.0: Unable to enable MSI: -1
> atl1 0000:03:00.0: peth0 link is up 100 Mbps full duplex
> xenbr0: topology change detected, propagating
> xenbr0: port 1(vif0.0) entering forwarding state
> device peth0 entered promiscuous mode
> audit(1187308449.198 :8): dev=peth0 prom=256 old_prom=0 auid=4294967295
> xenbr0: port 2(peth0) entering learning state
> xenbr0: topology change detected, propagating
> xenbr0: port 2(peth0) entering forwarding state
>
>
>
> Do you have any idea what is causing this? I can give more information if
> requested. (can't issue the network-bridge start command now as it will
> disconnect me from the machine if I do so, I'm remotely connected at the
> moment)
>
>
>
> P.S. I tried also with a USB ethernet card, same result.
>
>
>
> Thanks for any insight,
>
>
>
> Best regards,
>
>
>
> Emre
>
>
>
>
>
>
>
>
>
>
> --
> Emre Erenoglu
> erenoglu@xxxxxxxxx  <mailto:erenoglu@xxxxxxxxx>
>
>
>
>
> --
> Emre Erenoglu
> erenoglu@xxxxxxxxx
>
>
>
> 
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
>



-- 
Emre Erenoglu
erenoglu@xxxxxxxxx


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