I discovered the same issue, with PV drivers only. On Xen 3.4.3 and
4.0.0, I experienced the same problems. Using one fully HVM linux domu,
and fully PV linux domu, and one windows domu with gplpv drivers, I
tested a 2.6.32.13 build from two weeks ago, and a 2.6.32.15 build from
Saturday with the same config. PV network does not work properly with
2.6.32.15, but qemu emulated device in the HVM domain without PV drivers
works fine. All three work just fine with 2.6.32.13. Symptom is that
packets never seem to get back to the domu. For example, I have VMs on
192.168.2.0/24 subnet, and dom0 routes traffic to local physical net on
192.168.1.0/24. If I ping 192.168.1.1 from a domu with PV drivers, I
can see the echo request and reply in tcpdump on the bridge device on
dom0, but domu does not seem to see the reply. In some other cases,
domu sees the reply, but reports 999-1001ms response times, which I know
are inaccurate by watching tcpdump output. Traffic other than ICMP is
completely unreliable; the packets that do get through have incredibly
high latency. I'm 100% sure I don't have iptables or other network
config problems.
-----Original Message-----
From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Fantu
Sent: Monday, June 07, 2010 9:20 AM
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Big network problem on recent kernel update
fromxen/stable2.6.32.x
I see only today how with last build of kernel do from last commit
(27ed1b0e0dae5f1d5da5c76451bc84cb529128bd) do network of windows xp domU
with gplpv 0.11.0.213 unusable, ping lost or over 1 second unable to
connect
with rdp to domU, unable to use network from domU and viceversa
Also with build with 2.6.32.14 (from commit
e8734951b7a8d838050277696541a7e57183bdce) have problem
but my last build with 2.6.32.13 not have network problem, I can not
remember committing but i have build on 26 may if just remember
All these build have same config:
http://old.nabble.com/file/p28805128/config-2.6.32.15 config
--
View this message in context:
http://old.nabble.com/Big-network-problem-on-recent-kernel-update-from-x
en-stable2.6.32.x-tp28805128p28805128.html
Sent from the Xen - Dev mailing list archive at Nabble.com.
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