Hi All,
After upgrading from 3.10.104 to kernel 4.14 I see constant drops
(around 10 packets/sec) on team interface in active-backup mode,
increasing txqueuelen on a physical port helps, however, drops still
occur from time to time.
I've added debug printk in team driver where dev_kfree_skb_any is
called, however, I do not see messages in dmesg until I reset physical
interface by ethtool, therefore packets are being dropped somewhere
else, however, for now, I have no clue how to find the exact cause.
Do you have any ideas/suggestions on how to debug this?
Thanks!
net7 Link encap:Ethernet HWaddr 00:1E:67:B5:7F:76
inet addr:192.168.221.203 Bcast:0.0.0.0 Mask:255.255.255.0
inet6 addr: fe80::21e:67ff:feb5:7f76/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:263 errors:0 dropped:151 overruns:0 frame:0
TX packets:83944096 errors:0 dropped:57692 overruns:0 carrier:0
collisions:0 txqueuelen:10000
RX bytes:27531 (26.8 KiB) TX bytes:113995992408 (106.1 GiB)
# teamnl net7 ports
5: eth6: up 1000Mbit FD
# ethtool -S eth6
NIC statistics:
rx_packets: 113
tx_packets: 86938454
rx_bytes: 22848
tx_bytes: 118410084622
rx_broadcast: 68
tx_broadcast: 6
rx_multicast: 45
tx_multicast: 86938448
multicast: 45
collisions: 0
rx_crc_errors: 0
rx_no_buffer_count: 0
rx_missed_errors: 0
tx_aborted_errors: 0
tx_carrier_errors: 0
tx_window_errors: 0
tx_abort_late_coll: 0
tx_deferred_ok: 0
tx_single_coll_ok: 0
tx_multi_coll_ok: 0
tx_timeout_count: 0
rx_long_length_errors: 0
rx_short_length_errors: 0
rx_align_errors: 0
tx_tcp_seg_good: 0
tx_tcp_seg_failed: 0
rx_flow_control_xon: 68
rx_flow_control_xoff: 96
tx_flow_control_xon: 0
tx_flow_control_xoff: 0
rx_long_byte_count: 22848
tx_dma_out_of_sync: 0
lro_aggregated: 0
lro_flushed: 0
tx_smbus: 0
rx_smbus: 0
dropped_smbus: 0
os2bmc_rx_by_bmc: 0
os2bmc_tx_by_bmc: 0
os2bmc_tx_by_host: 0
os2bmc_rx_by_host: 0
tx_hwtstamp_timeouts: 0
rx_hwtstamp_cleared: 0
rx_errors: 0
tx_errors: 0
tx_dropped: 0
rx_length_errors: 0
rx_over_errors: 0
rx_frame_errors: 0
rx_fifo_errors: 0
tx_fifo_errors: 0
tx_heartbeat_errors: 0
tx_queue_0_packets: 86938440
tx_queue_0_bytes: 118062311560
tx_queue_0_restart: 0
rx_queue_0_packets: 277
rx_queue_0_bytes: 32236
rx_queue_0_drops: 0
rx_queue_0_csum_err: 0
rx_queue_0_alloc_failed: 0
# teamdctl net7 s d
{
"ports": {
"eth6": {
"ifinfo": {
"dev_addr": "00:1e:67:b5:7f:76",
"dev_addr_len": 6,
"ifindex": 5,
"ifname": "eth6"
},
"link": {
"duplex": "full",
"speed": 1000,
"up": true
},
"link_watches": {
"list": {
"link_watch_0": {
"delay_down": 0,
"delay_up": 0,
"down_count": 1,
"name": "ethtool",
"up": true
}
},
"up": true
}
}
},
"runner": {
"active_port": "eth6"
},
"setup": {
"daemonized": true,
"dbus_enabled": false,
"debug_level": 0,
"kernel_team_mode_name": "activebackup",
"pid": 5533,
"pid_file": "/var/run/teamd/net7.pid",
"runner_name": "activebackup",
"zmq_enabled": false
},
"team_device": {
"ifinfo": {
"dev_addr": "00:1e:67:b5:7f:76",
"dev_addr_len": 6,
"ifindex": 13,
"ifname": "net7"
}
}
}