Re: [dpdk-dev] [PATCH v2] net/virtio: fix add pointer checking for rxvq

[Maxime Coquelin <maxime.coquelin@redhat.com>]

On 05/24/2018 05:51 PM, zhiyong.yang@intel.com wrote:
> For virtio-user server mode, one use case comes across segmentation fault.
> step 1: Launch vhost side as client firstly.
> step 2: launch virtio-user side as server.
> 
> The cause is: after registering virtio_interrupt_handler into
> eal-intr-thread, two threads (main thread and eal-intr-thread) have
> sync issues, so add rxvq pointer checking in function virtio_notify_peers
> to decide if the code can continue.
> 
> Fixes: bd8f50a45d0f ("net/virtio-user: support server mode")
> Cc: stable@dpdk.org
> Cc: maxime.coquelin@redhat.com
> Cc: tiwei.bie@intel.com
> Cc: lei.a.yao@intel.com
> Cc: ferruh.yigit@intel.com
> 
> Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
> Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
> ---
> 
> Change in V2:
> change title prefix from net/virtio-user to net/virtio.
> 
>   drivers/net/virtio/virtio_ethdev.c | 3 +++
>   1 file changed, 3 insertions(+)

Applied to dpdk-next-virtio/master.

Thanks,
Maxime