[dpdk-dev] [Bug 287] netvsc PMD/dpdk/azure: Driver lockup with multi-queue configuration

[Stephen Hemminger]

On Thu, 30 May 2019 00:10:21 +0000
bugzilla at dpdk.org wrote:

> https://bugs.dpdk.org/show_bug.cgi?id=287
> 
>             Bug ID: 287
>            Summary: netvsc PMD/dpdk/azure: Driver lockup with multi-queue
>                     configuration
>            Product: DPDK
>            Version: 18.11
>           Hardware: x86
>                 OS: Linux
>             Status: CONFIRMED
>           Severity: normal
>           Priority: Normal
>          Component: ethdev
>           Assignee: dev at dpdk.org
>           Reporter: mohsinmazhar_shaikh at trendmicro.com
>   Target Milestone: ---
> 
> I am running an app using dpdk 18.11 netvsc PMD
> (https://doc.dpdk.org/guides/nics/netvsc.html) on "Ubuntu 18.04 LTS" VM on
> azure running kernel 4.18.0-1018
> (https://launchpad.net/ubuntu/+source/linux-azure/4.18.0-1018.18). The app uses
> multi-queue with 2 cores doing RX/TX. The lockup only occurs when doing a
> connections/second test i.e. exercising the netvsc interface. When the lockup
> occurs the netvsc interface and it's corresponding mellanox slave both can't
> rx/tx packets.
> 

Thanks for the report, busy this week, may have time to address it next week.