Wuxp,
The first thing is to validate your claim that nothing sent from the VM when
VPP is restarted. Start tcpdump and watch nothing is sent from the VM. I assume
it happens all the times as supposed to once in a blue moon.
If that is validated, I’d like to see your qemu startup command to see if I can
recreate it myself.
Did you say your host is CentOS 7.4 or your VM is CentOS 7.4 or both?
Steven
From: <vpp-dev@lists.fd.io> on behalf of "w...@anchnet.com" <w...@anchnet.com>
Date: Thursday, March 15, 2018 at 9:27 AM
To: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>
Subject: Re: [vpp-dev] unexpected 65535 rx packets on vhost-user interface
TRACE for first run
vpp# trace add vhost-user-input 10
vpp# create vhost socket /tmp/a.sock
VirtualEthernet0/0/0
vpp# set int state VirtualEthernet0/0/0 up
vpp# show int
Name Idx State Counter Count
VirtualEthernet0/0/0 1 up rx packets
1
rx bytes
42
drops
1
local0 0 down
vpp# show trace
------------------- Start of thread 0 vpp_main -------------------
Packet 1
00:01:29:986952: vhost-user-input
VirtualEthernet0/0/0 queue 0
virtio flags:
SINGLE_DESC Single descriptor packet
virtio_net_hdr first_desc_len 54
flags 0x00 gso_type 0
num_buff 0
00:01:29:987327: ethernet-input
ARP: 52:54:00:98:01:01 -> ff:ff:ff:ff:ff:ff
00:01:29:987383: arp-input
request, type ethernet/IP4, address size 6/4
52:54:00:98:01:01/192.168.3.2 -> 00:00:00:00:00:00/192.168.3.3
00:01:29:987408: error-drop
arp-input: Interface is not IP enabled
TRACE for second run
vpp# trace add vhost-user-input 10
vpp# create vhost socket /tmp/a.sock
VirtualEthernet0/0/0
vpp# set int state VirtualEthernet0/0/0 up
vpp# show int
Name Idx State Counter Count
VirtualEthernet0/0/0 1 up rx packets
65535
rx bytes
2752470
drops
65535
local0 0 down
vpp# show trace
------------------- Start of thread 0 vpp_main -------------------
Packet 1
00:00:25:993064: vhost-user-input
VirtualEthernet0/0/0 queue 0
virtio flags:
SINGLE_DESC Single descriptor packet
virtio_net_hdr first_desc_len 54
flags 0x00 gso_type 0
num_buff 0
00:00:25:993541: ethernet-input
ARP: 52:54:00:98:01:01 -> ff:ff:ff:ff:ff:ff
00:00:25:993589: arp-input
request, type ethernet/IP4, address size 6/4
52:54:00:98:01:01/192.168.3.2 -> 00:00:00:00:00:00/192.168.3.3
00:00:25:993609: error-drop
arp-input: Interface is not IP enabled
Packet 2
00:00:25:993064: vhost-user-input
VirtualEthernet0/0/0 queue 0
virtio flags:
SINGLE_DESC Single descriptor packet
virtio_net_hdr first_desc_len 54
flags 0x00 gso_type 0
num_buff 0
00:00:25:993541: ethernet-input
ARP: 52:54:00:98:01:01 -> ff:ff:ff:ff:ff:ff
00:00:25:993589: arp-input
request, type ethernet/IP4, address size 6/4
52:54:00:98:01:01/192.168.3.2 -> 00:00:00:00:00:00/192.168.3.3
00:00:25:993609: error-drop
arp-input: Interface is not IP enabled
Packet 3
00:00:25:993064: vhost-user-input
VirtualEthernet0/0/0 queue 0
virtio flags:
SINGLE_DESC Single descriptor packet
virtio_net_hdr first_desc_len 54
flags 0x00 gso_type 0
num_buff 0
00:00:25:993541: ethernet-input
ARP: 52:54:00:98:01:01 -> ff:ff:ff:ff:ff:ff
00:00:25:993589: arp-input
request, type ethernet/IP4, address size 6/4
52:54:00:98:01:01/192.168.3.2 -> 00:00:00:00:00:00/192.168.3.3
00:00:25:993609: error-drop
arp-input: Interface is not IP enabled
Packet 4
00:00:25:993064: vhost-user-input
VirtualEthernet0/0/0 queue 0
virtio flags:
SINGLE_DESC Single descriptor packet
virtio_net_hdr first_desc_len 54
flags 0x00 gso_type 0
num_buff 0
00:00:25:993541: ethernet-input
ARP: 52:54:00:98:01:01 -> ff:ff:ff:ff:ff:ff
00:00:25:993589: arp-input
request, type ethernet/IP4, address size 6/4
52:54:00:98:01:01/192.168.3.2 -> 00:00:00:00:00:00/192.168.3.3
00:00:25:993609: error-drop
arp-input: Interface is not IP enabled
Packet 5
00:00:25:993064: vhost-user-input
VirtualEthernet0/0/0 queue 0
virtio flags:
SINGLE_DESC Single descriptor packet
virtio_net_hdr first_desc_len 54
flags 0x00 gso_type 0
num_buff 0
00:00:25:993541: ethernet-input
ARP: 52:54:00:98:01:01 -> ff:ff:ff:ff:ff:ff
00:00:25:993589: arp-input
request, type ethernet/IP4, address size 6/4
52:54:00:98:01:01/192.168.3.2 -> 00:00:00:00:00:00/192.168.3.3
00:00:25:993609: error-drop
arp-input: Interface is not IP enabled
Packet 6
00:00:25:993064: vhost-user-input
VirtualEthernet0/0/0 queue 0
virtio flags:
SINGLE_DESC Single descriptor packet
virtio_net_hdr first_desc_len 54
flags 0x00 gso_type 0
num_buff 0
00:00:25:993541: ethernet-input
ARP: 52:54:00:98:01:01 -> ff:ff:ff:ff:ff:ff
00:00:25:993589: arp-input
request, type ethernet/IP4, address size 6/4
52:54:00:98:01:01/192.168.3.2 -> 00:00:00:00:00:00/192.168.3.3
00:00:25:993609: error-drop
arp-input: Interface is not IP enabled
Packet 7
00:00:25:993064: vhost-user-input
VirtualEthernet0/0/0 queue 0
virtio flags:
SINGLE_DESC Single descriptor packet
virtio_net_hdr first_desc_len 54
flags 0x00 gso_type 0
num_buff 0
00:00:25:993541: ethernet-input
ARP: 52:54:00:98:01:01 -> ff:ff:ff:ff:ff:ff
00:00:25:993589: arp-input
request, type ethernet/IP4, address size 6/4
52:54:00:98:01:01/192.168.3.2 -> 00:00:00:00:00:00/192.168.3.3
00:00:25:993609: error-drop
arp-input: Interface is not IP enabled
Packet 8
00:00:25:993064: vhost-user-input
VirtualEthernet0/0/0 queue 0
virtio flags:
SINGLE_DESC Single descriptor packet
virtio_net_hdr first_desc_len 54
flags 0x00 gso_type 0
num_buff 0
00:00:25:993541: ethernet-input
ARP: 52:54:00:98:01:01 -> ff:ff:ff:ff:ff:ff
00:00:25:993589: arp-input
request, type ethernet/IP4, address size 6/4
52:54:00:98:01:01/192.168.3.2 -> 00:00:00:00:00:00/192.168.3.3
00:00:25:993609: error-drop
arp-input: Interface is not IP enabled
Packet 9
00:00:25:993064: vhost-user-input
VirtualEthernet0/0/0 queue 0
virtio flags:
SINGLE_DESC Single descriptor packet
virtio_net_hdr first_desc_len 54
flags 0x00 gso_type 0
num_buff 0
00:00:25:993541: ethernet-input
ARP: 52:54:00:98:01:01 -> ff:ff:ff:ff:ff:ff
00:00:25:993589: arp-input
request, type ethernet/IP4, address size 6/4
52:54:00:98:01:01/192.168.3.2 -> 00:00:00:00:00:00/192.168.3.3
00:00:25:993609: error-drop
arp-input: Interface is not IP enabled
Packet 10
00:00:25:993064: vhost-user-input
VirtualEthernet0/0/0 queue 0
virtio flags:
SINGLE_DESC Single descriptor packet
virtio_net_hdr first_desc_len 54
flags 0x00 gso_type 0
num_buff 0
00:00:25:993541: ethernet-input
ARP: 52:54:00:98:01:01 -> ff:ff:ff:ff:ff:ff
00:00:25:993589: arp-input
request, type ethernet/IP4, address size 6/4
52:54:00:98:01:01/192.168.3.2 -> 00:00:00:00:00:00/192.168.3.3
00:00:25:993609: error-drop
arp-input: Interface is not IP enabled
vpp#
