On 2017年11月15日 22:55, Longpeng(Mike) wrote:
Hi guys, We got a BUG report from our testers yesterday, the testing scenario was migrating a VM (Windows guest, *4 vcpus*, 4GB, vhost-user net: *7 queues*). We found the cause reason, and we'll report the BUG or send a fix patch to upstream if necessary( we haven't test the upstream yet, sorry... ).
Could you explain this a little bit more?
We want to know why the vhost_net_start() must start *total queues* ( in our VM there're 7 queues ) but not *the queues that current used* ( in our VM, guest only uses the first 4 queues because it's limited by the number of vcpus) ? Looking forward to your help, thx :)
Since the codes have been there for years and works well for kernel datapath. You should really explain what's wrong.
Thanks
