From mboxrd@z Thu Jan  1 00:00:00 1970
From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Subject: Re: [PATCH] vhost: fix driver unregister for client mode
Date: Wed, 20 Jul 2016 20:38:41 +0800
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Cc: dev@dpdk.org, Huawei Xie <huawei.xie@intel.com>,
 Dyasly Sergey <s.dyasly@samsung.com>,
 Heetae Ahn <heetae82.ahn@samsung.com>,
 Thomas Monjalon <thomas.monjalon@6wind.com>
To: Ilya Maximets <i.maximets@samsung.com>
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On Wed, Jul 20, 2016 at 11:32:43AM +0300, Ilya Maximets wrote:
> Currently while calling of 'rte_vhost_driver_unregister()' connection
> to QEMU will not be closed. This leads to inability to register driver
> again and reconnect to same virtual machine.
> 
> This scenario is reproducible with OVS. While executing of the following
> command vhost port will be re-created (will be executed
> 'rte_vhost_driver_register()' followed by 'rte_vhost_driver_unregister()')
> network will be broken and QEMU possibly will crash:
> 
> 	ovs-vsctl set Interface vhost1 ofport_request=15
> 
> Fix this by closing all established connections on driver unregister and
> removing of pending connections from reconnection list.
> 
> Fixes: 64ab701c3d1e ("vhost: add vhost-user client mode")
> Signed-off-by: Ilya Maximets <i.maximets@samsung.com>

Ilya, Thanks a lot for the test and fix. It looks good to me. But
somehow I would like have a test tomorrow.

	--yliu