On Fri, Jul 23, 2021 at 03:06:04AM -0500, Ivan wrote: > On Fri, Jul 23, 2021 at 2:59 AM Michael S. Tsirkin <mst@xxxxxxxxxx> wrote: > > > > On Thu, Jul 22, 2021 at 11:50:11PM -0500, Ivan wrote: > > > On Thu, Jul 22, 2021 at 11:25 PM Jason Wang <jasowang@xxxxxxxxxx> wrote: > > > > 在 2021/7/23 上午10:54, Ivan 写道: > > > > > On Thu, Jul 22, 2021 at 9:37 PM Jason Wang <jasowang@xxxxxxxxxx> wrote: > > > > >> Does it work if you turn off lro before enabling the forwarding? > > > > > 0 root@NuRaid:~# ethtool -K eth0 lro off > > > > > Actual changes: > > > > > rx-lro: on [requested off] > > > > > Could not change any device features > > > > > > > > Ok, it looks like the device misses the VIRTIO_NET_F_CTRL_GUEST_OFFLOADS > > > > which makes it impossible to change the LRO setting. > > > > > > > > Did you use qemu? If yes, what's the qemu version you've used? > > > > > > These are VirtualBox machines, which I've been using for years with > > > longterm kernels 4.19, and I never had such a problem. But now that I > > > tried upgrading to kernels 5.10 or 5.13 -- the panics started. These > > > are just generic kernel builds, and a minimalistic userspace. > > > > I would be useful to see the features your virtualbox instance provides > > > > cat /sys/class/net/eth0/device/features > > # cat /sys/class/net/eth0/device/features > 1100010110111011111100000000000000000000000000000000000000000000 So if I'm not wrong: 1#define VIRTIO_NET_F_CSUM 0 /* Host handles pkts w/ partial csum */ 1#define VIRTIO_NET_F_GUEST_CSUM 1 /* Guest handles pkts w/ partial csum */ 0#define VIRTIO_NET_F_CTRL_GUEST_OFFLOADS 2 /* Dynamic offload configuration. */ 0#define VIRTIO_NET_F_MTU 3 /* Initial MTU advice */ 0 1#define VIRTIO_NET_F_MAC 5 /* Host has given MAC address. */ 0 1#define VIRTIO_NET_F_GUEST_TSO4 7 /* Guest can handle TSOv4 in. */ 1#define VIRTIO_NET_F_GUEST_TSO6 8 /* Guest can handle TSOv6 in. */ 0#define VIRTIO_NET_F_GUEST_ECN 9 /* Guest can handle TSO[6] w/ ECN in. */ 1#define VIRTIO_NET_F_GUEST_UFO 10 /* Guest can handle UFO in. */ 1#define VIRTIO_NET_F_HOST_TSO4 11 /* Host can handle TSOv4 in. */ 1#define VIRTIO_NET_F_HOST_TSO6 12 /* Host can handle TSOv6 in. */ 0#define VIRTIO_NET_F_HOST_ECN 13 /* Host can handle TSO[6] w/ ECN in. */ 1#define VIRTIO_NET_F_HOST_UFO 14 /* Host can handle UFO in. */ 1#define VIRTIO_NET_F_MRG_RXBUF 15 /* Host can merge receive buffers. */ 1#define VIRTIO_NET_F_STATUS 16 /* virtio_net_config.status available */ 1#define VIRTIO_NET_F_CTRL_VQ 17 /* Control channel available */ 1#define VIRTIO_NET_F_CTRL_RX 18 /* Control channel RX mode support */ 1#define VIRTIO_NET_F_CTRL_VLAN 19 /* Control channel VLAN filtering */ _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
