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From: Lucas Meneghel Rodrigues <lmr@redhat.com>
To: pradeep <psuriset@linux.vnet.ibm.com>
Cc: autotest@test.kernel.org, kvm@vger.kernel.org, mst@redhat.com,
	akong@redhat.com, jasowang@redhat.com, mgoldish@redhat.com
Subject: Re: [PATCH 07/18] KVM test: Add a subtest jumbo
Date: Wed, 29 Sep 2010 17:21:22 -0300	[thread overview]
Message-ID: <1285791682.2794.28.camel@freedom> (raw)
In-Reply-To: <20100929170345.44c6d6d0@skywalker>

On Wed, 2010-09-29 at 17:03 +0530, pradeep wrote:
> On Wed, 29 Sep 2010 08:07:19 -0300
> Lucas Meneghel Rodrigues <lmr@redhat.com> wrote:
> 
> 
> > 
> > Not as expected even after 10 seconds. The idea is to change the MTU,
> > wait a little while and check it again. Yes, I also got this problem
> > doing my test of the patch. Need to check why that is happening.
> > 
> 
> from guest i tried to remove arp entry from cache as mentioned in code.
> 
> arp -d 10.168.0.6 -i kvmbr0
> 
> It never worked for me. I guess this is the reason for this error.

I spend some time on this test today and got it working. The bottom line
is, we add a static arp cache entry for:

(IP of vm + MAC of vm interface) + corresponding tap interface
^ Guest side info                  ^ Host side info

If you issue a ifconfig on host while tests are running, you'll see the
tap interface:

virtio_0_5900 Link encap:Ethernet  HWaddr 8A:65:51:1F:6A:95  
          inet6 addr: fe80::8865:51ff:fe1f:6a95/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:65520  Metric:1
          RX packets:560511 errors:0 dropped:0 overruns:0 frame:0
          TX packets:565406 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:36697168035 (34.1 GiB)  TX bytes:36697563087 (34.1 GiB)

Then, if you run:

arp -s 10.16.74.148 9a:0b:5d:7a:e6:eb -i virtio_0_5900

It will work. Of course, the actual values of the ip and MAC addresses
have to be checked on guest side.

I have rebased this test and re-sent. You might try it, but now I think
it's going to work for you, as it did for me.

Moving closer to the completion of this patchset,

Lucas


  reply	other threads:[~2010-09-29 20:21 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-27 22:43 [PATCH 00/18] Network Patchset v4 Lucas Meneghel Rodrigues
2010-09-27 22:43 ` [PATCH 01/18] KVM test: Add a new macaddress pool algorithm Lucas Meneghel Rodrigues
2010-09-27 22:43 ` [PATCH 02/18] KVM test: Make physical_resources_check to work with MAC management Lucas Meneghel Rodrigues
2010-09-27 22:43 ` [PATCH 03/18] KVM test: Remove address_pools.cfg dependency Lucas Meneghel Rodrigues
2010-09-27 22:43 ` [PATCH 04/18] KVM test: Add a get_ifname function Lucas Meneghel Rodrigues
2010-09-27 22:43 ` [PATCH 05/18] KVM Test: Add nw related functions ping and get_linux_ifname Lucas Meneghel Rodrigues
2010-09-27 22:43 ` [PATCH 06/18] KVM test: Add a new subtest ping Lucas Meneghel Rodrigues
2010-09-27 22:43 ` [PATCH 07/18] KVM test: Add a subtest jumbo Lucas Meneghel Rodrigues
2010-09-29  6:42   ` pradeep
2010-09-29 11:07     ` Lucas Meneghel Rodrigues
2010-09-29 11:33       ` pradeep
2010-09-29 20:21         ` Lucas Meneghel Rodrigues [this message]
2010-09-30  7:05           ` pradeep
2010-09-27 22:43 ` [PATCH 08/18] KVM test: Add basic file transfer test Lucas Meneghel Rodrigues
2010-09-28 13:24   ` Michael S. Tsirkin
2010-09-29 11:45     ` pradeep
2010-09-29 12:33       ` Lucas Meneghel Rodrigues
2010-09-29 14:08     ` Lucas Meneghel Rodrigues
2010-09-29 17:43     ` Lucas Meneghel Rodrigues
2010-09-27 22:43 ` [PATCH 09/18] KVM test: Add a subtest of load/unload nic driver Lucas Meneghel Rodrigues
2010-10-06  5:49   ` Amos Kong
2010-09-27 22:43 ` [PATCH 10/18] KVM test: Add a subtest of nic promisc Lucas Meneghel Rodrigues
2010-09-27 22:43 ` [PATCH 11/18] KVM test: Add a subtest of multicast Lucas Meneghel Rodrigues
2010-09-30  9:30   ` pradeep
2010-10-05 12:21   ` Amos Kong
2010-10-05 12:44     ` Lucas Meneghel Rodrigues
2010-09-27 22:43 ` [PATCH 12/18] KVM test: Add a subtest of pxe Lucas Meneghel Rodrigues
2010-09-27 22:43 ` [PATCH 13/18] KVM test: Add a subtest of changing MAC address Lucas Meneghel Rodrigues
2010-09-30  8:21   ` pradeep
2010-09-27 22:44 ` [PATCH 14/18] KVM test: Add a netperf subtest Lucas Meneghel Rodrigues
2010-10-05  9:00   ` pradeep
2010-10-05 12:59     ` Amos Kong
2010-10-06 10:48       ` pradeep
2010-09-27 22:44 ` [PATCH 15/18] KVM test: kvm_utils - Add support of check if remote port free Lucas Meneghel Rodrigues
2010-09-27 22:44 ` [PATCH 16/18] KVM test: Improve vlan subtest Lucas Meneghel Rodrigues
2010-09-30  6:59   ` pradeep
2010-10-05 12:56     ` Amos Kong
2010-09-27 22:44 ` [PATCH 17/18] KVM test: vlan subtest - Replace extra_params '-snapshot' with image_snapshot Lucas Meneghel Rodrigues
2010-09-27 22:44 ` [PATCH 18/18] KVM test: Add subtest of testing offload by ethtool Lucas Meneghel Rodrigues
2010-10-06  8:56   ` pradeep
2010-10-06  9:59     ` [Autotest] " pradeep
2010-10-06 15:55     ` Ryan Harper
2010-10-06 16:57       ` Lucas Meneghel Rodrigues
2010-10-07  2:09 ` [PATCH 00/18] Network Patchset v4 Lucas Meneghel Rodrigues
2010-10-07 13:45   ` [Autotest] " pradeep
2010-10-07 13:54     ` Lucas Meneghel Rodrigues
2010-10-07 14:37       ` pradeep
2010-10-07 15:00         ` [Autotest] " Michael S. Tsirkin
2010-10-08 12:27           ` Lucas Meneghel Rodrigues
  -- strict thread matches above, loose matches on Subject: below --
2010-09-14 22:25 [PATCH 00/18] KVM autotest network patchset v3 Lucas Meneghel Rodrigues
2010-09-14 22:25 ` [PATCH 07/18] KVM test: Add a subtest jumbo Lucas Meneghel Rodrigues

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