From: Pavel Fedin <p.fedin@samsung.com>
To: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 0/4 for 2.3] vhost-user live migration support
Date: Fri, 11 Dec 2015 11:26:55 +0300 [thread overview]
Message-ID: <000001d133ed$b2446eb0$16cd4c10$@samsung.com> (raw)
Hello!
I am currently testing this patchset with qemu and have problems.
The guest migrates correctly, but after the migration it cries in the log:
Vhost user backend fails to broadcast fake RARP
and pinging the (new) host doesn't work. When i migrate it back to the old host, the network resumes working.
I have analyzed the code, and this problem happens because we support neither VHOST_USER_PROTOCOL_F_RARP, nor
VIRTIO_NET_F_GUEST_ANNOUNCE. Since the latter seems to be related only to guest, i simply enabled it in qemu by force, and after
this the network doesn't work at all.
Can anybody help me and explain how the thing works? I expected that gratuitous ARP packets are harmless, but they seem to break
things somehow. And what was used for testing the implementation?
Kind regards,
Pavel Fedin
Expert Engineer
Samsung Electronics Research center Russia
next reply other threads:[~2015-12-11 8:26 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-11 8:26 Pavel Fedin [this message]
2015-12-11 9:49 ` Yuanhan Liu
2015-12-11 10:22 ` Pavel Fedin
2015-12-14 3:58 ` Peter Xu
2015-12-14 7:30 ` Pavel Fedin
2015-12-14 9:04 ` Peter Xu
2015-12-14 9:46 ` Pavel Fedin
2015-12-14 10:09 ` Peter Xu
2015-12-14 12:09 ` Yuanhan Liu
2015-12-14 13:00 ` Peter Xu
2015-12-14 13:21 ` Yuanhan Liu
2015-12-14 13:28 ` Peter Xu
2015-12-14 13:51 ` Yuanhan Liu
2015-12-14 14:54 ` Pavel Fedin
2015-12-15 8:23 ` Yuanhan Liu
2015-12-15 8:45 ` Pavel Fedin
2015-12-15 8:56 ` Yuanhan Liu
2015-12-15 9:04 ` Pavel Fedin
2015-12-15 10:05 ` Peter Xu
2015-12-15 11:43 ` Thibaut Collet
2015-12-15 11:47 ` Thibaut Collet
2015-12-15 12:24 ` Pavel Fedin
2015-12-15 13:36 ` Yuanhan Liu
2015-12-15 13:48 ` Pavel Fedin
2015-12-15 13:59 ` Yuanhan Liu
2015-12-15 14:58 ` Pavel Fedin
2015-12-16 7:28 ` Yuanhan Liu
2015-12-16 11:57 ` Pavel Fedin
2015-12-16 12:08 ` Yuanhan Liu
2015-12-16 12:43 ` Pavel Fedin
2015-12-16 13:00 ` Yuanhan Liu
2015-12-15 13:18 ` Yuanhan Liu
2015-12-15 15:07 ` Thibaut Collet
2015-12-15 15:36 ` Pavel Fedin
2015-12-16 2:38 ` Peter Xu
2015-12-16 2:50 ` Yuanhan Liu
2015-12-16 7:05 ` Pavel Fedin
2015-12-15 9:42 ` Peter Xu
-- strict thread matches above, loose matches on Subject: below --
2015-12-02 3:43 Yuanhan Liu
2015-12-02 14:10 ` Victor Kaplansky
2015-12-02 14:33 ` Yuanhan Liu
2015-12-09 3:41 ` Xie, Huawei
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