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Thread: eth0 up but not TX/RX after update today - a few reboots later it works???

  1. #1
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    Default eth0 up but not TX/RX after update today - a few reboots later it works???

    After Yast online update - with kernel updating to 5.3.18-lp152.92-default - eth0 is up but not transmitting nor receiving.
    Code:
    # ip a
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
        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: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
        link/ether b4:2e:99:f5:62:d3 brd ff:ff:ff:ff:ff:ff
        inet 192.168.0.13/24 brd 192.168.0.255 scope global eth0
           valid_lft forever preferred_lft forever
    
    # hwinfo --network
    48: None 00.0: 10701 Ethernet                                   
      [Created at net.126]
      Unique ID: usDW.ndpeucax6V1
      Parent ID: rBUF.BmqBU9Z2gDD
      SysFS ID: /class/net/eth0
      SysFS Device Link: /devices/pci0000:00/0000:00:01.2/0000:01:00.2/0000:02:07.0/0000:06:00.0
      Hardware Class: network interface
      Model: "Ethernet network interface"
      Driver: "r8169"
      Driver Modules: "r8169"
      Device File: eth0
      HW Address: b4:2e:99:f5:62:d3
      Permanent HW Address: b4:2e:99:f5:62:d3
      Link detected: yes
      Config Status: cfg=no, avail=yes, need=no, active=unknown
      Attached to: #22 (Ethernet controller)
    
    # dmesg | grep eth0
    [    5.874191] r8169 0000:06:00.0 eth0: RTL8168g/8111g, b4:2e:99:f5:62:d3, XID 4c0, IRQ 74
    [    5.874192] r8169 0000:06:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
    [    9.992759] r8169 0000:06:00.0 eth0: Link is Down
    [   12.668485] r8169 0000:06:00.0 eth0: Link is Up - 1Gbps/Full - flow control rx/tx
    [   17.856089] NETDEV WATCHDOG: eth0 (r8169): transmit queue 0 timed out
    
    # ping 8.8.4.4
    PING 8.8.4.4 (8.8.4.4) 56(84) bytes of data.
    From 192.168.0.13 icmp_seq=1 Destination Host Unreachable
    From 192.168.0.13 icmp_seq=2 Destination Host Unreachable
    From 192.168.0.13 icmp_seq=3 Destination Host Unreachable
    Switch port light is up.
    Ethernet port lights on desktop are on, constant orange light and slowly blinking green light.

    Booted to previous kernel 5.3.18-lp152.87-default but eth0 still UP but not working (can't ping any other box in my LAN nor google dns 8.8.4.4). Tried the kernel before that (5.3.18-lp152.50) but it won't boot complaining that something has to be loaded first (initram something, perhaps)

    So, after rebooting again to the current kernel eth0 is working, at least for now. Any idea why?

    P.S.: this did remind me of the first ever support "tip" in windowze: reboot, and if it doesn't work reboot again and again and...

  2. #2
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    Default Re: eth0 up but not TX/RX after update today - a few reboots later it works???

    Hi
    Switch to the r8168 driver....
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

  3. #3
    Join Date
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    Default Re: eth0 up but not TX/RX after update today - a few reboots later it works???

    Thanks malcolm,

    IINM this happened when I updated that box to 15.2 last year, and at the time I did try the r8168 driver, without success, so I reverted to r8169 and rebooted. Next time it breaks again I'll give it a try.

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