Re: [PATCH v3] net/vhost: fix segfault when creating vdev dynamically

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

On 03/30/2018 09:32 AM, Yang, Zhiyong wrote:
> Hi Maxime, Junjie,
> 
>> -----Original Message-----
>> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Junjie Chen
>> Sent: Friday, March 30, 2018 2:59 PM
>> To: Tan, Jianfeng <jianfeng.tan@intel.com>; maxime.coquelin@redhat.com;
>> mtetsuyah@gmail.com
>> Cc: dev@dpdk.org; Chen, Junjie J <junjie.j.chen@intel.com>;
>> Chen@dpdk.org
>> Subject: [dpdk-dev] [PATCH v3] net/vhost: fix segfault when creating vdev
>> dynamically
>>
>> When creating vdev dynamically, vhost pmd driver starts directly without
>> checking TX/RX queues are ready or not, and thus causes segmentation fault
>> when vhost library accesses queues. This patch adds a flag to check whether
>> queues are setup or not, and adds queues setup into dev_start function to
>> allow user to start them after setting up.
>>
>> Fixes: aed0b12930b3 ("net/vhost: fix socket file deleted on stop")
>> Signed-off-by: Chen, Junjie <junjie.j.chen@intel.com>
>> ---
> 
> Thanks for Junjie's patch!
> 
> I also came across the similar issue when developing virtio-user server mode.
>  From user's perspective, the patch can fix the issue in my user case instead of
> the patch http://www.dpdk.org/dev/patchwork/patch/36340/
> 
> Tested-by: Zhiyong Yang <zhiyong.yang@intel.com>

Great it solves your issue, and thanks for having tested it.

Maxime

> Thanks
> Zhiyong
>