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
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