On Thu, Jul 21, 2016 at 03:55:36PM +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 at samsung.com>
> ---
>
> Version 3:
> * fixed leak of file descriptors by adding of
> 'close(reconn->fd)' to 'vhost_user_remove_reconnect()'
>
> Version 2:
> * style fixes.
Acked-by: Yuanhan Liu <yuanhan.liu at linux.intel.com>
--yliu
