Brandon Lamb
2010-Apr-10 01:40 UTC
[Xen-users] Attempting to checksum a non-TCP/UDP packet errors rolling across screen
Hello, Just did a fresh install of xen-4.0 and using the 2.6.31.13 dom0 kernel. I have 6 linux debian guests running, and on my host console i am getting these errors rolling pretty constantly. "Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet" I tried doing the ethtool -K eth0 tx off and same thing on peth0, using bridged mode for network config. Any tips? Google is failing me, im not sure what to even search for other than "xen Attempting to checksum a non-TCP/UDP packet". Im wondering if this has something to do with why my guests were seeming to have network timeout/freezing problems, I thought maybe upgrading from 3.4 to 4.0 would magically solve it. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Pasi Kärkkäinen
2010-Apr-10 11:19 UTC
Re: [Xen-users] Attempting to checksum a non-TCP/UDP packet errors rolling across screen
On Fri, Apr 09, 2010 at 06:40:04PM -0700, Brandon Lamb wrote:> Hello, > > Just did a fresh install of xen-4.0 and using the 2.6.31.13 dom0 kernel. > > I have 6 linux debian guests running, and on my host console i am > getting these errors rolling pretty constantly. > > "Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet" > > I tried doing the ethtool -K eth0 tx off and same thing on peth0, > using bridged mode for network config. > > Any tips? Google is failing me, im not sure what to even search for > other than "xen Attempting to checksum a non-TCP/UDP packet". > > Im wondering if this has something to do with why my guests were > seeming to have network timeout/freezing problems, I thought maybe > upgrading from 3.4 to 4.0 would magically solve it. >All the networking stuff is done on the dom0 Linux kernel, so Xen upgrade doesn''t affect that. Although most probably you also upgraded dom0 kernel.. Can you please post output of: - ethtool peth0 - ethtool -i peth0 - brctl show - ifconfig -a Thanks. -- Pasi _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Pasi Kärkkäinen
2010-Apr-12 06:21 UTC
Re: [Xen-users] Attempting to checksum a non-TCP/UDP packet errors rolling across screen
On Sat, Apr 10, 2010 at 02:19:39PM +0300, Pasi Kärkkäinen wrote:> On Fri, Apr 09, 2010 at 06:40:04PM -0700, Brandon Lamb wrote: > > Hello, > > > > Just did a fresh install of xen-4.0 and using the 2.6.31.13 dom0 kernel. > > > > I have 6 linux debian guests running, and on my host console i am > > getting these errors rolling pretty constantly. > > > > "Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet" > > > > I tried doing the ethtool -K eth0 tx off and same thing on peth0, > > using bridged mode for network config. > > > > Any tips? Google is failing me, im not sure what to even search for > > other than "xen Attempting to checksum a non-TCP/UDP packet". > > > > Im wondering if this has something to do with why my guests were > > seeming to have network timeout/freezing problems, I thought maybe > > upgrading from 3.4 to 4.0 would magically solve it. > > > > All the networking stuff is done on the dom0 Linux kernel, > so Xen upgrade doesn''t affect that. > > Although most probably you also upgraded dom0 kernel.. > > Can you please post output of: > > - ethtool peth0 > - ethtool -i peth0 > - brctl show > - ifconfig -a >And also: - ethtool -k peth0 -- Pasi _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Gerry Reno
2010-Apr-21 15:41 UTC
Re: [Xen-users] Attempting to checksum a non-TCP/UDP packet errors rolling across screen
Pasi Kärkkäinen wrote:> On Sat, Apr 10, 2010 at 02:19:39PM +0300, Pasi Kärkkäinen wrote: > >> On Fri, Apr 09, 2010 at 06:40:04PM -0700, Brandon Lamb wrote: >> >>> Hello, >>> >>> Just did a fresh install of xen-4.0 and using the 2.6.31.13 dom0 kernel. >>> >>> I have 6 linux debian guests running, and on my host console i am >>> getting these errors rolling pretty constantly. >>> >>> "Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet" >>> >>> I tried doing the ethtool -K eth0 tx off and same thing on peth0, >>> using bridged mode for network config. >>> >>> Any tips? Google is failing me, im not sure what to even search for >>> other than "xen Attempting to checksum a non-TCP/UDP packet". >>> >>> Im wondering if this has something to do with why my guests were >>> seeming to have network timeout/freezing problems, I thought maybe >>> upgrading from 3.4 to 4.0 would magically solve it. >>> >>> >> All the networking stuff is done on the dom0 Linux kernel, >> so Xen upgrade doesn''t affect that. >> >> Although most probably you also upgraded dom0 kernel.. >> >> Can you please post output of: >> >> - ethtool peth0 >> - ethtool -i peth0 >> - brctl show >> - ifconfig -a >> >> > > And also: > - ethtool -k peth0 > > -- Pasi >Hi Pasi, I saw this post and I''m experiencing this checksumming problem as well. The setup is eucalyptus and whenever we try to ping an ''instance'' machine from outside the cloud controller we see these errors. Also when we try to ping from inside the instance to the public network. We are running in NOVLAN mode across a bridge. Here are some details: stats from the ''node controller'' (which launches the instances) root@grp-01-23-02:~# ethtool eth0 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: MII PHYAD: 0 Transceiver: internal Auto-negotiation: on Supports Wake-on: pumbg Wake-on: g Current message level: 0x00000033 (51) Link detected: yes root@grp-01-23-02:~# root@grp-01-23-02:~# root@grp-01-23-02:~# ethtool -i eth0 driver: r8169 version: 2.3LK-NAPI firmware-version: bus-info: 0000:02:00.0 root@grp-01-23-02:~# root@grp-01-23-02:~# root@grp-01-23-02:~# which brctl /usr/sbin/brctl You have new mail in /var/mail/root root@grp-01-23-02:~# root@grp-01-23-02:~# brctl show bridge name bridge id STP enabled interfaces br0 8000.00241d1905df no eth0 vif3.0 vif4.0 tmpbridge 8000.000000000000 no virbr0 8000.000000000000 yes root@grp-01-23-02:~# root@grp-01-23-02:~# ifconfig -a br0 Link encap:Ethernet HWaddr 00:24:1d:19:05:df inet addr:192.168.1.46 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::224:1dff:fe19:5df/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:153454 errors:0 dropped:0 overruns:0 frame:0 TX packets:113783 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:57304645 (57.3 MB) TX bytes:61902494 (61.9 MB) eth0 Link encap:Ethernet HWaddr 00:24:1d:19:05:df inet6 addr: fe80::224:1dff:fe19:5df/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:29190 errors:0 dropped:0 overruns:0 frame:0 TX packets:2585 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:4408231 (4.4 MB) TX bytes:156511 (156.5 KB) Interrupt:155 Base address:0xa000 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:8554 errors:0 dropped:0 overruns:0 frame:0 TX packets:8554 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1332418 (1.3 MB) TX bytes:1332418 (1.3 MB) tmpbridge Link encap:Ethernet HWaddr 9e:d5:58:8d:62:69 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) vif3.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:128219 errors:0 dropped:0 overruns:0 frame:0 TX packets:136511 errors:0 dropped:1 overruns:0 carrier:0 collisions:0 txqueuelen:32 RX bytes:52787210 (52.7 MB) TX bytes:64189110 (64.1 MB) vif4.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:225 errors:0 dropped:0 overruns:0 frame:0 TX packets:1247 errors:0 dropped:1 overruns:0 carrier:0 collisions:0 txqueuelen:32 RX bytes:27369 (27.3 KB) TX bytes:142708 (142.7 KB) virbr0 Link encap:Ethernet HWaddr 26:0e:39:a1:89:72 inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:536 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:22178 (22.1 KB) root@grp-01-23-02:~# ethtool -k eth0 Offload parameters for eth0: Cannot get device flags: Operation not supported rx-checksumming: on tx-checksumming: off scatter-gather: off tcp-segmentation-offload: off udp-fragmentation-offload: off generic-segmentation-offload: off generic-receive-offload: off large-receive-offload: off We are running ubuntu enterprise cloud 1.6 with a pv_ops dom0 kernel (2.6.31.6) compiled from Jeremy''s git tree back about December. -Gerry _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Pasi Kärkkäinen
2010-Apr-21 16:07 UTC
Re: [Xen-users] Attempting to checksum a non-TCP/UDP packet errors rolling across screen
On Wed, Apr 21, 2010 at 11:41:35AM -0400, Gerry Reno wrote:> Pasi Kärkkäinen wrote: >> On Sat, Apr 10, 2010 at 02:19:39PM +0300, Pasi Kärkkäinen wrote: >> >>> On Fri, Apr 09, 2010 at 06:40:04PM -0700, Brandon Lamb wrote: >>> >>>> Hello, >>>> >>>> Just did a fresh install of xen-4.0 and using the 2.6.31.13 dom0 kernel. >>>> >>>> I have 6 linux debian guests running, and on my host console i am >>>> getting these errors rolling pretty constantly. >>>> >>>> "Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet" >>>> >>>> I tried doing the ethtool -K eth0 tx off and same thing on peth0, >>>> using bridged mode for network config. >>>> >>>> Any tips? Google is failing me, im not sure what to even search for >>>> other than "xen Attempting to checksum a non-TCP/UDP packet". >>>> >>>> Im wondering if this has something to do with why my guests were >>>> seeming to have network timeout/freezing problems, I thought maybe >>>> upgrading from 3.4 to 4.0 would magically solve it. >>>> >>>> >>> All the networking stuff is done on the dom0 Linux kernel, >>> so Xen upgrade doesn''t affect that. >>> >>> Although most probably you also upgraded dom0 kernel.. >>> >>> Can you please post output of: >>> >>> - ethtool peth0 >>> - ethtool -i peth0 >>> - brctl show >>> - ifconfig -a >>> >>> >> >> And also: >> - ethtool -k peth0 >> >> -- Pasi >> > > Hi Pasi, > I saw this post and I''m experiencing this checksumming problem as well. > The setup is eucalyptus and whenever we try to ping an ''instance'' > machine from outside the cloud controller we see these errors. Also > when we try to ping from inside the instance to the public network. We > are running in NOVLAN mode across a bridge. > > Here are some details: stats from the ''node controller'' (which launches > the instances) > > root@grp-01-23-02:~# ethtool eth0 > Settings for eth0: > Supported ports: [ TP MII ] > Supported link modes: 10baseT/Half 10baseT/Full > 100baseT/Half 100baseT/Full > 1000baseT/Half 1000baseT/Full > Supports auto-negotiation: Yes > Advertised link modes: 10baseT/Half 10baseT/Full > 100baseT/Half 100baseT/Full > 1000baseT/Half 1000baseT/Full > Advertised auto-negotiation: Yes > Speed: 1000Mb/s > Duplex: Full > Port: MII > PHYAD: 0 > Transceiver: internal > Auto-negotiation: on > Supports Wake-on: pumbg > Wake-on: g > Current message level: 0x00000033 (51) > Link detected: yes > root@grp-01-23-02:~# > root@grp-01-23-02:~# > root@grp-01-23-02:~# ethtool -i eth0 > driver: r8169 > version: 2.3LK-NAPI > firmware-version: > bus-info: 0000:02:00.0 >Ok, so Realtek NIC.> root@grp-01-23-02:~# > root@grp-01-23-02:~# > root@grp-01-23-02:~# which brctl > /usr/sbin/brctl > You have new mail in /var/mail/root > root@grp-01-23-02:~# > root@grp-01-23-02:~# brctl show > bridge name bridge id STP enabled interfaces > br0 8000.00241d1905df no eth0 > vif3.0 > vif4.0 > tmpbridge 8000.000000000000 no > virbr0 8000.000000000000 yes > root@grp-01-23-02:~#<snip>> root@grp-01-23-02:~# ethtool -k eth0 > Offload parameters for eth0: > Cannot get device flags: Operation not supported > rx-checksumming: on >Did you try disabling rx-checksumming?> tx-checksumming: off > scatter-gather: off > tcp-segmentation-offload: off > udp-fragmentation-offload: off > generic-segmentation-offload: off > generic-receive-offload: off > large-receive-offload: off > > We are running ubuntu enterprise cloud 1.6 with a pv_ops dom0 kernel > (2.6.31.6) compiled from Jeremy''s git tree back about December. >Ok. Did you try upgrading the dom0 kernel? -- Pasi _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Gerry Reno
2010-Apr-21 23:48 UTC
Re: [Xen-users] Attempting to checksum a non-TCP/UDP packet errors rolling across screen
--- On Wed, 4/21/10, Gerry Reno <grenoml@yahoo.com> wrote:> From: Gerry Reno <grenoml@yahoo.com> > Subject: Re: [Xen-users] Attempting to checksum a non-TCP/UDP packet errors rolling across screen > To: "Gerry Reno" <grenoml@yahoo.com> > Date: Wednesday, April 21, 2010, 7:42 PM > On Wed, Apr 21, 2010 at 11:41:35AM > -0400, Gerry Reno wrote: > > Pasi Kärkkäinen wrote: > >> On Sat, Apr 10, 2010 at 02:19:39PM +0300, Pasi > Kärkkäinen wrote: > >> > >>> On Fri, Apr 09, 2010 at 06:40:04PM -0700, > Brandon Lamb wrote: > >>> > >>>> Hello, > >>>> > >>>> Just did a fresh install of xen-4.0 and > using the 2.6.31.13 dom0 kernel. > >>>> > >>>> I have 6 linux debian guests running, and > on my host console i am > >>>> getting these errors rolling pretty > constantly. > >>>> > >>>> "Attempting to checksum a non-TCP/UDP > packet, dropping a protocol 1 packet" > >>>> > >>>> I tried doing the ethtool -K eth0 tx off > and same thing on peth0, > >>>> using bridged mode for network config. > >>>> > >>>> Any tips? Google is failing me, im not > sure what to even search for > >>>> other than "xen Attempting to checksum a > non-TCP/UDP packet". > >>>> > >>>> Im wondering if this has something to do > with why my guests were > >>>> seeming to have network timeout/freezing > problems, I thought maybe > >>>> upgrading from 3.4 to 4.0 would magically > solve it. > >>>> > >>>> > >>> All the networking stuff is done on the dom0 > Linux kernel, > >>> so Xen upgrade doesn''t affect that. > >>> > >>> Although most probably you also upgraded dom0 > kernel.. > >>> > >>> Can you please post output of: > >>> > >>> - ethtool peth0 > >>> - ethtool -i peth0 > >>> - brctl show > >>> - ifconfig -a > >>> > >>> > >> > >> And also: > >> - ethtool -k peth0 > >> > >> -- Pasi > >> > > > > Hi Pasi, > > I saw this post and I''m experiencing this > checksumming problem as well. > > The setup is eucalyptus and whenever we try to ping an > ''instance'' > > machine from outside the cloud controller we see these > errors. Also > > when we try to ping from inside the instance to the > public network. We > > are running in NOVLAN mode across a bridge. > > > > Here are some details: stats from the ''node > controller'' (which launches > > the instances) > > > > root@grp-01-23-02:~# ethtool eth0 > > Settings for eth0: > > Supported ports: [ TP MII > ] > > Supported link > modes: 10baseT/Half 10baseT/Full > > > > 100baseT/Half 100baseT/Full > > > > 1000baseT/Half 1000baseT/Full > > Supports auto-negotiation: > Yes > > Advertised link > modes: 10baseT/Half 10baseT/Full > > > > 100baseT/Half 100baseT/Full > > > > 1000baseT/Half 1000baseT/Full > > Advertised > auto-negotiation: Yes > > Speed: 1000Mb/s > > Duplex: Full > > Port: MII > > PHYAD: 0 > > Transceiver: internal > > Auto-negotiation: on > > Supports Wake-on: pumbg > > Wake-on: g > > Current message level: > 0x00000033 (51) > > Link detected: yes > > root@grp-01-23-02:~# > > root@grp-01-23-02:~# > > root@grp-01-23-02:~# ethtool -i eth0 > > driver: r8169 > > version: 2.3LK-NAPI > > firmware-version: > > bus-info: 0000:02:00.0 > > > > Ok, so Realtek NIC. > > > > root@grp-01-23-02:~# > > root@grp-01-23-02:~# > > root@grp-01-23-02:~# which brctl > > /usr/sbin/brctl > > You have new mail in /var/mail/root > > root@grp-01-23-02:~# > > root@grp-01-23-02:~# brctl show > > bridge name bridge id > STP > enabled interfaces > > br0 > 8000.00241d1905df > no > eth0 > > > > > vif3.0 > > > > > vif4.0 > > tmpbridge > 8000.000000000000 > no > > virbr0 > 8000.000000000000 yes > > root@grp-01-23-02:~# > > <snip> > > > root@grp-01-23-02:~# ethtool -k eth0 > > Offload parameters for eth0: > > Cannot get device flags: Operation not supported > > rx-checksumming: on > > > > Did you try disabling rx-checksumming?Yes, just gives me ''Operation not supported.''> > > tx-checksumming: off > > scatter-gather: off > > tcp-segmentation-offload: off > > udp-fragmentation-offload: off > > generic-segmentation-offload: off > > generic-receive-offload: off > > large-receive-offload: off > > > > We are running ubuntu enterprise cloud 1.6 with a > pv_ops dom0 kernel > > (2.6.31.6) compiled from Jeremy''s git tree back about > December. > > > > Ok. Did you try upgrading the dom0 kernel? > > -- PasiNot yet. What version should I be compiling now. From Jeremy''s tree still? -Gerry Took me a while to respond because my ISP email went down earlier and is still down. So I registered another account. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Pasi Kärkkäinen
2010-Apr-29 16:41 UTC
Re: [Xen-users] Attempting to checksum a non-TCP/UDP packet errors rolling across screen
On Wed, Apr 21, 2010 at 04:48:32PM -0700, Gerry Reno wrote:> > > > <snip> > > > > > root@grp-01-23-02:~# ethtool -k eth0 > > > Offload parameters for eth0: > > > Cannot get device flags: Operation not supported > > > rx-checksumming: on > > > > > > > Did you try disabling rx-checksumming? > > Yes, just gives me ''Operation not supported.'' > > > > > > > tx-checksumming: off > > > scatter-gather: off > > > tcp-segmentation-offload: off > > > udp-fragmentation-offload: off > > > generic-segmentation-offload: off > > > generic-receive-offload: off > > > large-receive-offload: off > > > > > > We are running ubuntu enterprise cloud 1.6 with a > > pv_ops dom0 kernel > > > (2.6.31.6) compiled from Jeremy''s git tree back about > > December. > > > > > > > Ok. Did you try upgrading the dom0 kernel? > > > > -- Pasi > > Not yet. What version should I be compiling now. From Jeremy''s tree still? >Yeah, just grab the latest xen/stable-2.6.32.x tree. -- Pasi _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Pasi Kärkkäinen
2010-May-22 11:36 UTC
Re: [Xen-devel] Re: [Xen-users] Attempting to checksum a non-TCP/UDP packet errors rolling across screen
On Wed, Apr 21, 2010 at 07:07:14PM +0300, Pasi Kärkkäinen wrote:> On Wed, Apr 21, 2010 at 11:41:35AM -0400, Gerry Reno wrote: > > Pasi Kärkkäinen wrote: > >> On Sat, Apr 10, 2010 at 02:19:39PM +0300, Pasi Kärkkäinen wrote: > >> > >>> On Fri, Apr 09, 2010 at 06:40:04PM -0700, Brandon Lamb wrote: > >>> > >>>> Hello, > >>>> > >>>> Just did a fresh install of xen-4.0 and using the 2.6.31.13 dom0 kernel. > >>>> > >>>> I have 6 linux debian guests running, and on my host console i am > >>>> getting these errors rolling pretty constantly. > >>>> > >>>> "Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet" > >>>> > >>>> I tried doing the ethtool -K eth0 tx off and same thing on peth0, > >>>> using bridged mode for network config. > >>>> > >>>> Any tips? Google is failing me, im not sure what to even search for > >>>> other than "xen Attempting to checksum a non-TCP/UDP packet". > >>>> > >>>> Im wondering if this has something to do with why my guests were > >>>> seeming to have network timeout/freezing problems, I thought maybe > >>>> upgrading from 3.4 to 4.0 would magically solve it. > >>>> > >>>> > >>> All the networking stuff is done on the dom0 Linux kernel, > >>> so Xen upgrade doesn''t affect that. > >>> > >>> Although most probably you also upgraded dom0 kernel.. > >>> > >>> Can you please post output of: > >>> > >>> - ethtool peth0 > >>> - ethtool -i peth0 > >>> - brctl show > >>> - ifconfig -a > >>> > >>> > >> > >> And also: > >> - ethtool -k peth0 > >> > >> -- Pasi > >> > > > > Hi Pasi, > > I saw this post and I''m experiencing this checksumming problem as well. > > The setup is eucalyptus and whenever we try to ping an ''instance'' > > machine from outside the cloud controller we see these errors. Also > > when we try to ping from inside the instance to the public network. We > > are running in NOVLAN mode across a bridge. > > > > Here are some details: stats from the ''node controller'' (which launches > > the instances) > > > > root@grp-01-23-02:~# ethtool eth0 > > Settings for eth0: > > Supported ports: [ TP MII ] > > Supported link modes: 10baseT/Half 10baseT/Full > > 100baseT/Half 100baseT/Full > > 1000baseT/Half 1000baseT/Full > > Supports auto-negotiation: Yes > > Advertised link modes: 10baseT/Half 10baseT/Full > > 100baseT/Half 100baseT/Full > > 1000baseT/Half 1000baseT/Full > > Advertised auto-negotiation: Yes > > Speed: 1000Mb/s > > Duplex: Full > > Port: MII > > PHYAD: 0 > > Transceiver: internal > > Auto-negotiation: on > > Supports Wake-on: pumbg > > Wake-on: g > > Current message level: 0x00000033 (51) > > Link detected: yes > > root@grp-01-23-02:~# > > root@grp-01-23-02:~# > > root@grp-01-23-02:~# ethtool -i eth0 > > driver: r8169 > > version: 2.3LK-NAPI > > firmware-version: > > bus-info: 0000:02:00.0 > > > > Ok, so Realtek NIC. > > > > root@grp-01-23-02:~# > > root@grp-01-23-02:~# > > root@grp-01-23-02:~# which brctl > > /usr/sbin/brctl > > You have new mail in /var/mail/root > > root@grp-01-23-02:~# > > root@grp-01-23-02:~# brctl show > > bridge name bridge id STP enabled interfaces > > br0 8000.00241d1905df no eth0 > > vif3.0 > > vif4.0 > > tmpbridge 8000.000000000000 no > > virbr0 8000.000000000000 yes > > root@grp-01-23-02:~# > > <snip> > > > root@grp-01-23-02:~# ethtool -k eth0 > > Offload parameters for eth0: > > Cannot get device flags: Operation not supported > > rx-checksumming: on > > > > Did you try disabling rx-checksumming? > > > tx-checksumming: off > > scatter-gather: off > > tcp-segmentation-offload: off > > udp-fragmentation-offload: off > > generic-segmentation-offload: off > > generic-receive-offload: off > > large-receive-offload: off > > > > We are running ubuntu enterprise cloud 1.6 with a pv_ops dom0 kernel > > (2.6.31.6) compiled from Jeremy''s git tree back about December. > > > > Ok. Did you try upgrading the dom0 kernel? >Replying here aswell.. this was a bug in the netback driver. It should be fixed in the latest xen/stable-2.6.32.x tree (2.6.32.13). -- Pasi _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users