[dpdk-dev] [PATCH] net/virtio: fix fail to configure rxq interrupt

[Yuanhan Liu]

On Mon, Jul 31, 2017 at 02:47:13AM +0000, Hu, Jiayu wrote:
> Hi Yuanhan,
> 
> When we run l3fwd-power in VM with applying this patch in VM DPDK, QEMU will crash. I think this patch can't solve the problem correctly but I haven't figured out the reason. I am so sorry about it.

It's okay. But you should reply earlier here, so that I would not apply it.

Regarding the crash, I believe Jianfeng had met a similar issue before. IIRC,
it's about the order of event fd setups (or something like it). You might
want to contact him for more details.

And it's dropped.

	--yliu

> > -----Original Message-----
> > From: Yuanhan Liu [mailto:yliu at fridaylinux.org]
> > Sent: Monday, July 31, 2017 10:30
> > To: Hu, Jiayu <jiayu.hu at intel.com>
> > Cc: dev at dpdk.org; Tan, Jianfeng <jianfeng.tan at intel.com>; Yao, Lei A
> > <lei.a.yao at intel.com>; stable at dpdk.org
> > Subject: Re: [PATCH] net/virtio: fix fail to configure rxq interrupt
> > 
> > On Wed, Jul 19, 2017 at 11:18:23AM +0800, Jiayu Hu wrote:
> > > When use rte_eth_dev_configure() to enable rx queue interrupt for virtio
> > > devices, virtio_configure_intr() isn't called to set up the interrupt
> > > environment, which causes rx queue interrupt setup failed. This patch is
> > > to fix this issue.
> > >
> > > Fixes: 26b683b4f7d0 ("net/virtio: setup Rx queue interrupts")
> > > Cc: stable at dpdk.org
> > >
> > > Signed-off-by: Jiayu Hu <jiayu.hu at intel.com>
> > 
> > Applied to dpdk-next-virtio.
> > 
> > Thanks.
> > 
> > 	--yliu