On Fri, May 26, 2017 at 03:31:33PM -0400, bfields@xxxxxxxxxxxx wrote:
> Looks like the culprit is very likely d85b758f72b0 "virtio_net: fix
> support for small rings".
>
> After that patch, my NFS server VM stops responding to packets after a
> few minutes of testing. Before that patch, my server keeps working.
>
> --b.
Others complained about that too.
I'm still trying to reproduce though.
Meanwhile, could you please locate this line of code:
+ vi->rq[i].min_buf_len = mergeable_min_buf_len(vi, vi->rq[i].vq);
and add something like
printk(KERN_ERR, "min buf = 0x%x expected 0x%x size 0x%x big %d\n",
vi->rq[i].min_buf_len, GOOD_PACKET_LEN,
virtqueue_get_vring_size(vi->rq[i].vq),
(int)vi->big_packets);
after it?
Then boot and capture the output.
Thanks!
--
MST
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