nic: Algo mau aconteceu! ffff

Estou configurando um roteador GNU / Linux com Debian Stretch (9.7) e antes de reiniciar o servidor, todo o tráfego de uma interface para outra estava indo bem, mas depois disso, recebi uma mensagem como esta (tty):

enp1s6: Something Wicked happened! ffff.

Eu tenho um host no mesmo switch e na mesma rede, para fins de teste e, basicamente, a LAN do roteador não está respondendo a solicitações de eco.

Aqui estão algumas informações sobre o servidor.

kernel.log

Jan 25 08:58:02 server001 kernel: [25060.494127] enp1s6: Link changed: 
Jan 25 08:58:02 server001 kernel: [25060.494127] 100Mbps, half duplex
Jan 25 08:58:02 server001 kernel: [25060.494254] enp1s6: Something Wicked happened! ffff.
Jan 25 08:58:02 server001 kernel: [25060.497338] enp1s6: Link up
Jan 25 08:58:02 server001 kernel: [25060.497557] enp1s6: Link changed: 
Jan 25 08:58:02 server001 kernel: [25060.497557] 100Mbps, full duplex
Jan 25 08:58:02 server001 kernel: [25060.499986] enp1s6: Link up
Jan 25 08:58:02 server001 kernel: [25060.500206] enp1s6: Link changed: 
Jan 25 08:58:02 server001 kernel: [25060.500206] 100Mbps, full duplex
Jan 25 08:58:02 server001 kernel: [25060.500447] enp1s6: Link up
Jan 25 08:58:02 server001 kernel: [25060.500667] enp1s6: Link changed: 
Jan 25 08:58:02 server001 kernel: [25060.500667] 100Mbps, full duplex
Jan 25 08:58:02 server001 kernel: [25060.500895] enp1s6: Link up
Jan 25 08:58:02 server001 kernel: [25060.501114] enp1s6: Link changed: 
Jan 25 08:58:02 server001 kernel: [25060.501114] 10Mbps, full duplex
Jan 25 08:58:02 server001 kernel: [25060.501341] enp1s6: Link up
Jan 25 08:58:02 server001 kernel: [25060.501559] enp1s6: Link changed: 
Jan 25 08:58:02 server001 kernel: [25060.501559] 100Mbps, full duplex
Jan 25 08:58:02 server001 kernel: [25060.503985] enp1s6: Link up
Jan 25 08:58:02 server001 kernel: [25060.504204] enp1s6: Link changed: 
Jan 25 08:58:02 server001 kernel: [25060.504204] 100Mbps, full duplex
Jan 25 08:58:02 server001 kernel: [25060.504326] enp1s6: Something Wicked happened! ffff.
Jan 25 08:58:02 server001 kernel: [25060.529009] enp1s6: Link up
Jan 25 08:58:02 server001 kernel: [25060.529229] enp1s6: Link changed: 
Jan 25 08:58:02 server001 kernel: [25060.529230] 100Mbps, full duplex
Jan 25 08:58:02 server001 kernel: [25060.529484] enp1s6: Link up
Jan 25 08:58:02 server001 kernel: [25060.529732] enp1s6: Link changed: 
Jan 25 08:58:02 server001 kernel: [25060.529735] 100Mbps, full duplex
Jan 25 08:58:02 server001 kernel: [25060.531075] enp1s6: Link up
Jan 25 08:58:02 server001 kernel: [25060.531295] enp1s6: Link changed: 
Jan 25 08:58:02 server001 kernel: [25060.531296] 100Mbps, half duplex
Jan 25 08:58:02 server001 kernel: [25060.531531] enp1s6: Link up
Jan 25 08:58:02 server001 kernel: [25060.531751] enp1s6: Link changed: 
Jan 25 08:58:02 server001 kernel: [25060.531751] 100Mbps, full duplex
Jan 25 08:58:02 server001 kernel: [25060.531977] enp1s6: Link up
Jan 25 08:58:02 server001 kernel: [25060.532196] enp1s6: Link changed: 
Jan 25 08:58:02 server001 kernel: [25060.532196] 100Mbps, half duplex
Jan 25 08:58:02 server001 kernel: [25060.532422] enp1s6: Link up
Jan 25 08:58:02 server001 kernel: [25060.532642] enp1s6: Link changed: 
Jan 25 08:58:02 server001 kernel: [25060.532642] 100Mbps, full duplex
Jan 25 08:58:02 server001 kernel: [25060.532869] enp1s6: Link up
Jan 25 08:58:02 server001 kernel: [25060.533089] enp1s6: Link changed: 
Jan 25 08:58:02 server001 kernel: [25060.533090] 100Mbps, full duplex
Jan 25 08:58:02 server001 kernel: [25060.533214] enp1s6: Something Wicked happened! ffff.

lspci (nics): enp0s7 + enp1s6

00:07.0 Bridge: NVIDIA Corporation MCP61 Ethernet (rev a2)
    Subsystem: Gigabyte Technology Co., Ltd MCP61 Ethernet
    Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 24, NUMA node 0
    Memory at fe02d000 (32-bit, non-prefetchable) [size=4K]
    I/O ports at f000 [size=8]
    Capabilities: [44] Power Management version 2
    Capabilities: [50] MSI: Enable+ Count=1/8 Maskable+ 64bit+
    Capabilities: [6c] HyperTransport: MSI Mapping Enable- Fixed+
    Kernel driver in use: forcedeth
    Kernel modules: forcedeth

01:06.0 Ethernet controller: Sundance Technology Inc / IC Plus Corp IC Plus IP100A Integrated 10/100 Ethernet MAC + PHY (rev 31)
    Flags: bus master, medium devsel, latency 0, IRQ 16, NUMA node 0
    I/O ports at b000 [size=128]
    Memory at fde00000 (32-bit, non-prefetchable) [size=512]
    [virtual] Expansion ROM at fdf00000 [disabled] [size=64K]
    Capabilities: [50] Power Management version 2
    Kernel driver in use: sundance
    Kernel modules: sundance

ethtool

Settings for enp0s7:
    Supported ports: [ MII ]
    Supported link modes:   10baseT/Half 10baseT/Full 
                            100baseT/Half 100baseT/Full 
                            1000baseT/Full 
    Supported pause frame use: No
    Supports auto-negotiation: Yes
    Advertised link modes:  10baseT/Half 10baseT/Full 
                            100baseT/Half 100baseT/Full 
                            1000baseT/Full 
    Advertised pause frame use: No
    Advertised auto-negotiation: Yes
    Speed: 100Mb/s
    Duplex: Full
    Port: MII
    PHYAD: 3
    Transceiver: external
    Auto-negotiation: on
    Supports Wake-on: g
    Wake-on: d
    Link detected: yes

Settings for enp1s6:
    Supported ports: [ TP MII ]
    Supported link modes:   10baseT/Half 10baseT/Full 
                            100baseT/Half 100baseT/Full 
    Supported pause frame use: No
    Supports auto-negotiation: Yes
    Advertised link modes:  Not reported
    Advertised pause frame use: No
    Advertised auto-negotiation: No
    Speed: 100Mb/s
    Duplex: Full
    Port: MII
    PHYAD: 0
    Transceiver: internal
    Auto-negotiation: off
    Supports Wake-on: pg
    Wake-on: d
    Current message level: 0x00000001 (1)
                   drv
    Link detected: yes

estatísticas do ethtool (enp1s6)

NIC statistics:
     tx_multiple_collisions: 26010
     tx_single_collisions: 27540
     tx_late_collisions: 5100
     tx_deferred: 27030
     tx_deferred_excessive: 26010
     tx_aborted: 6630
     tx_bcasts: 27030
     rx_bcasts: 27032
     tx_mcasts: 5610
     rx_mcasts: 27285

show de endereço ip

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
2: enp1s6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 1000
    link/ether 84:16:84:16:84:16 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.1/24 brd 192.168.1.255 scope global enp1s6
       valid_lft forever preferred_lft forever
3: enp0s7: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 50:e5:49:64:f6:8b brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.12/24 brd 192.168.0.255 scope global enp0s7
       valid_lft forever preferred_lft forever

lsmod

Module                  Size  Used by
ip6table_filter        16384  0
ip6_tables             28672  1 ip6table_filter
xt_conntrack           16384  2
nf_conntrack_netlink    36864  0
nfnetlink              16384  6 nf_conntrack_netlink
iptable_filter         16384  1
ipt_MASQUERADE         16384  1
nf_nat_masquerade_ipv4    16384  1 ipt_MASQUERADE
iptable_nat            16384  1
nf_conntrack_ipv4      16384  3
nf_defrag_ipv4         16384  1 nf_conntrack_ipv4
nf_nat_ipv4            16384  1 iptable_nat
nf_nat                 24576  2 nf_nat_masquerade_ipv4,nf_nat_ipv4
nf_conntrack          114688  6 nf_conntrack_ipv4,nf_conntrack_netlink,nf_nat_masquerade_ipv4,xt_conntrack,nf_nat_ipv4,nf_nat
snd_hda_codec_realtek    90112  1
snd_hda_codec_generic    69632  1 snd_hda_codec_realtek
edac_mce_amd           28672  0
edac_core              57344  0
kvm                   598016  0
evdev                  24576  2
ppdev                  20480  0
serio_raw              16384  0
nouveau              1556480  1
joydev                 20480  0
snd_hda_intel          36864  0
mxm_wmi                16384  1 nouveau
snd_hda_codec         135168  3  snd_hda_intel,snd_hda_codec_generic,snd_hda_codec_realtek
wmi                    16384  2 mxm_wmi,nouveau
snd_hda_core           86016  4 snd_hda_intel,snd_hda_codec,snd_hda_codec_generic,snd_hda_codec_realtek
video                  40960  1 nouveau
snd_hwdep              16384  1 snd_hda_codec
ttm                    98304  1 nouveau
drm_kms_helper        155648  1 nouveau
drm                   360448  4 nouveau,ttm,drm_kms_helper
snd_pcm               110592  3 snd_hda_intel,snd_hda_codec,snd_hda_core
irqbypass              16384  1 kvm
sg                     32768  0
pcspkr                 16384  0
k10temp                16384  0
parport_pc             28672  0
parport                49152  2 parport_pc,ppdev
i2c_algo_bit           16384  1 nouveau
button                 16384  1 nouveau
snd_timer              32768  1 snd_pcm
snd                    86016  7 snd_hda_intel,snd_hwdep,snd_hda_codec,snd_timer,snd_hda_codec_generic,snd_hdacodec_realtek,snd_pcm
soundcore              16384  1 snd
acpi_cpufreq           20480  0
ip_tables              24576  3 iptable_filter,iptable_nat
x_tables               36864  6 ip_tables,iptable_filter,ipt_MASQUERADE,ip6table_filter,xt_conntrack,ip6_tables
autofs4                40960  2
ext4                  585728  2
crc16                  16384  1 ext4
jbd2                  106496  1 ext4
fscrypto               28672  1 ext4
ecb                    16384  0
glue_helper            16384  0
lrw                    16384  0
gf128mul               16384  1 lrw
ablk_helper            16384  0
cryptd                 24576  1 ablk_helper
aes_x86_64             20480  1
mbcache                16384  3 ext4
raid10                 49152  0
raid456               106496  0
async_raid6_recov      20480  1 raid456
async_memcpy           16384  2 raid456,async_raid6_recov
async_pq               16384  2 raid456,async_raid6_recov
async_xor              16384  3 async_pq,raid456,async_raid6_recov
async_tx               16384  5 async_xor,async_pq,raid456,async_memcpy,async_raid6_recov
xor                    24576  1 async_xor
raid6_pq              110592  3 async_pq,raid456,async_raid6_recov
libcrc32c              16384  1 raid456
crc32c_generic         16384  3
raid0                  20480  0
multipath              16384  0
linear                 16384  0
raid1                  36864  1
md_mod                135168  6 raid1,raid10,multipath,linear,raid0,raid456
sd_mod                 49152  7
hid_generic            16384  0
usbhid                 53248  0
hid                   122880  2 hid_generic,usbhid
ata_generic            16384  0
ohci_pci               16384  0
psmouse               135168  0
sata_nv                28672  5
forcedeth              69632  0
ehci_pci               16384  0
libata                249856  2 ata_generic,sata_nv
ohci_hcd               53248  1 ohci_pci
ehci_hcd               81920  1 ehci_pci
scsi_mod              225280  3 sd_mod,libata,sg
usbcore               253952  5 usbhid,ehci_hcd,ohci_pci,ohci_hcd,ehci_pci
sundance               32768  0
mii                    16384  1 sundance
usb_common             16384  1 usbcore
i2c_nforce2            16384  0

Qualquer suposição?

Por favor, seja paciente: sou um ex-SysAdmin (desde anos), atualmente desenvolvedor de software.

Parece que sua placa de rede Sundance 10/100 é antiga, talvez muito antiga ...

Consulte https://bugzilla.redhat.com/show_bug.cgi?id=748973 (o módulo Ethernet Sundance 10/100 f16 trava quando conectado ao roteador gigabit)

De acordo com sua saída da ethtool, notei que o enp1s6 não está relatando como suporte à negociação automática. Também está desabilitado no dispositivo / porta que você está conectando? Se possível, ajuste o dispositivo ao qual você está se conectando para ativar a negociação automática. Se você não tem acesso a esse dispositivo ou não deseja alterá-lo, pode ser necessário forçar uma velocidade / duplix no enp1s6.