Reviewed-by: Jiayu Hu <[email protected]>
> -----Original Message-----
> From: Jiang, Cheng1 <[email protected]>
> Sent: Tuesday, August 17, 2021 1:26 PM
> To: Ma, WenwuX <[email protected]>; [email protected]
> Cc: [email protected]; Xia, Chenbo <[email protected]>; Hu,
> Jiayu <[email protected]>; [email protected]
> Subject: RE: [PATCH] examples/vhost: fix memory leak on forwarding packets.
>
> Acked-by: Cheng Jiang <[email protected]>
>
>
>
>
> > -----Original Message-----
> > From: Ma, WenwuX <[email protected]>
> > Sent: Wednesday, August 18, 2021 1:13 AM
> > To: [email protected]
> > Cc: [email protected]; Xia, Chenbo <[email protected]>;
> > Jiang, Cheng1 <[email protected]>; Hu, Jiayu
> > <[email protected]>; Ma, WenwuX <[email protected]>;
> > [email protected]
> > Subject: [PATCH] examples/vhost: fix memory leak on forwarding packets.
> >
> > In function virtio_tx_local(), when the device receiving the packet is
> > the same as the device to which the packet is forwarded, or the device
> > is removed, we return but not free the packet, it will cause a memory leak.
> >
> > Fixes: 4796ad63ba1f ("examples/vhost: import userspace vhost
> > application")
> > Cc: [email protected]
> >
> > Signed-off-by: Wenwu Ma <[email protected]>
> > ---
> > examples/vhost/main.c | 2 ++
> > 1 file changed, 2 insertions(+)
> >
> > diff --git a/examples/vhost/main.c b/examples/vhost/main.c index
> > bc3d71c898..07fd90ec64 100644
> > --- a/examples/vhost/main.c
> > +++ b/examples/vhost/main.c
> > @@ -965,6 +965,7 @@ virtio_tx_local(struct vhost_dev *vdev, struct
> > rte_mbuf *m)
> > return -1;
> >
> > if (vdev->vid == dst_vdev->vid) {
> > + rte_pktmbuf_free(m);
> > RTE_LOG_DP(DEBUG, VHOST_DATA,
> > "(%d) TX: src and dst MAC is same. Dropping
> packet.\n",
> > vdev->vid);
> > @@ -975,6 +976,7 @@ virtio_tx_local(struct vhost_dev *vdev, struct
> > rte_mbuf *m)
> > "(%d) TX: MAC address is local\n", dst_vdev->vid);
> >
> > if (unlikely(dst_vdev->remove)) {
> > + rte_pktmbuf_free(m);
> > RTE_LOG_DP(DEBUG, VHOST_DATA,
> > "(%d) device is marked for removal\n", dst_vdev-
> > >vid);
> > return 0;
> > --
> > 2.25.1
>
