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Re: [Xen-devel] Checksumming problem in pv_ops dom0 kernel / netback
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| Subject: | Re: [Xen-devel] Checksumming problem in pv_ops dom0 kernel / netback |
| From: | Scott Garron <xen-devel@xxxxxxxxxxxxxxxxxx> |
| Date: | Tue, 30 Mar 2010 18:58:02 -0400 |
| Delivery-date: | Tue, 30 Mar 2010 16:00:13 -0700 |
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S.H. Verbrugge wrote: Ever since we switched to a pv_ops dom0 kernel (we were using 2.6.26 xenkernel from Debian repo before, with Xen 3.2), we started to have some problems when attempting to route packets on a domU.
I'm having the same problem. All TCP packets that are forwarded
through a domU are somehow getting a static checksum (0x9e85) just as
they're being put out on the wire. ICMP is dropped by the dom0, as you
describe, with the "Attempting to checksum a non UDP/TCP packet" message
in dmesg. More detail about my situation is in my post to xen-users, here:
http://lists.xensource.com/archives/html/xen-users/2010-03/msg00846.html
It doesn't include a solution, though.
This is a tg3 interface
I'm also running the tg3 ethernet driver, which may be of
significance.
--
Scott Garron
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