Markus Schuster
2006-Apr-30 20:02 UTC
[Xen-users] xen-3.0-testing: checksum errors (was: still checksum errors with xen-3.0-testing.hg)
Hi list,
hi Nivedita Singhvi,
you wrote one should post to the mailing list if turning offloading off
still helps against checksum errors in recent checkouts. I had this
problem with a snapshot of xen-unstable from 2006-03-29 and upgraded
this days to a snapshot of xen-3.0-testing from 2006-04-29 (changeset
9659:50f2558d6241 regarding to xm dmesg output). Well, I still have
checksum problems that go away when turning offloading off vith ethtool.
I use the more-or-less classical networking environment: Bridging in
dom0, some VLANs, an eth0.X and a bridge for each VLAN ("handmade"
using
Debian''s /etc/network/interfaces) and the domUs connected to the
corresponding bridge. One domU acts as a router and has an interfaces
for each bridge (it''ll really have an interface for each VLAN if XEN
will support more than three interfaces per domU... *hint* :))
But maybe a ''brctl show'' says more than 1000 words:
brmgnt 8000.feffffffffff no peth0
vif0.0
vif1.0
brvlan101 8000.0002b3c76e13 no eth0.101
vif1.1
vif2.0
brvlan110 8000.0002b3c76e13 no eth0.110
vif1.2
vif3.0
brvlan111 8000.0002b3c76e13 no eth0.111
brvlan120 8000.0002b3c76e13 no eth0.120
(brmgnt is the same NIC, but untagged).
And finally some ''xm info'' output:
host : dom0
release : 2.6.16.11-xen
version : #1 SMP Sat Apr 29 20:22:56 CEST 2006
machine : i686
nr_cpus : 2
nr_nodes : 1
sockets_per_node : 2
cores_per_socket : 1
threads_per_core : 1
cpu_mhz : 1666
hw_caps : 0383fbff:c1cbfbff:00000000:00000020
total_memory : 1536
free_memory : 296
xen_major : 3
xen_minor : 0
xen_extra : .2-2
xen_caps : xen-3.0-x86_32
platform_params : virt_start=0xfc000000
xen_changeset : Fri Apr 28 14:06:33 2006 +0100 9659:50f2558d6241
cc_compiler : gcc version 3.3.3 20040412 (Red Hat Linux 3.3.3-7)
cc_compile_by : xenod
cc_compile_domain : cl.cam.ac.uk
cc_compile_date : Sat Apr 29 02:03:24 BST 2006
Greetings,
Markus
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Nivedita Singhvi
2006-May-01 15:29 UTC
Re: [Xen-users] xen-3.0-testing: checksum errors (was: still checksum errors with xen-3.0-testing.hg)
Markus Schuster wrote:> Hi list, > hi Nivedita Singhvi, > > you wrote one should post to the mailing list if turning offloading off > still helps against checksum errors in recent checkouts. I had thisHi Markus, thanks very much for the report..> problem with a snapshot of xen-unstable from 2006-03-29 and upgraded > this days to a snapshot of xen-3.0-testing from 2006-04-29 (changeset > 9659:50f2558d6241 regarding to xm dmesg output). Well, I still have > checksum problems that go away when turning offloading off vith ethtool.Yep, looks like there is still a place or too that needs to be looked at..> I use the more-or-less classical networking environment: Bridging in > dom0, some VLANs, an eth0.X and a bridge for each VLAN ("handmade" using > Debian''s /etc/network/interfaces) and the domUs connected to the > corresponding bridge. One domU acts as a router and has an interfaces > for each bridge (it''ll really have an interface for each VLAN if XEN > will support more than three interfaces per domU... *hint* :)) > > But maybe a ''brctl show'' says more than 1000 words: > brmgnt 8000.feffffffffff no peth0 > vif0.0 > vif1.0 > brvlan101 8000.0002b3c76e13 no eth0.101 > vif1.1 > vif2.0 > brvlan110 8000.0002b3c76e13 no eth0.110 > vif1.2 > vif3.0 > brvlan111 8000.0002b3c76e13 no eth0.111 > brvlan120 8000.0002b3c76e13 no eth0.120We''ll try and repro your configuration and find out what''s happening.. thanks, Nivedita _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users