Tg3 Network Link Unstable

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Full updated EL6: Does someone have the same behaviour, unstable eth interface (tg3/no dhcp)?

Jan 19 18:01:46 ane kernel: tg3 0000:04:00.0: eth0: Link is up at 1000 Mbps, full duplex Jan 19 18:01:46 ane kernel: tg3 0000:04:00.0: eth0: Flow control is on for TX and on for RX
Jan 19 18:01:46 ane kernel: tg3 0000:04:00.0: eth0: EEE is enabled Jan 19 18:01:46 ane NetworkManager[1735]: (eth0): carrier now ON (device state 8)
Jan 19 18:02:17 ane kernel: tg3 0000:04:00.0: eth0: Link is down Jan 19 18:02:17 ane NetworkManager[1735]: (eth0): carrier now OFF (device state 8, deferring action for 4 seconds)
Jan 19 18:02:20 ane kernel: tg3 0000:04:00.0: eth0: Link is up at 1000 Mbps, full duplex Jan 19 18:02:20 ane kernel: tg3 0000:04:00.0: eth0: Flow control is on for TX and on for RX
Jan 19 18:02:20 ane kernel: tg3 0000:04:00.0: eth0: EEE is enabled Jan 19 18:02:20 ane NetworkManager[1735]: (eth0): carrier now ON (device state 8)
Jan 19 18:02:23 ane kernel: tg3 0000:04:00.0: eth0: Link is down Jan 19 18:02:23 ane NetworkManager[1735]: (eth0): carrier now OFF (device state 8, deferring action for 4 seconds)
Jan 19 18:02:26 ane kernel: tg3 0000:04:00.0: eth0: Link is up at 1000 Mbps, full duplex Jan 19 18:02:26 ane kernel: tg3 0000:04:00.0: eth0: Flow control is on for TX and on for RX
Jan 19 18:02:26 ane kernel: tg3 0000:04:00.0: eth0: EEE is enabled Jan 19 18:02:26 ane NetworkManager[1735]: (eth0): carrier now ON (device state 8)
Jan 19 18:02:50 ane kernel: tg3 0000:04:00.0: eth0: Link is down Jan 19 18:02:50 ane NetworkManager[1735]: (eth0): carrier now OFF (device state 8, deferring action for 4 seconds)
Jan 19 18:02:53 ane kernel: tg3 0000:04:00.0: eth0: Link is up at 1000 Mbps, full duplex Jan 19 18:02:53 ane kernel: tg3 0000:04:00.0: eth0: Flow control is on for TX and on for RX
Jan 19 18:02:53 ane kernel: tg3 0000:04:00.0: eth0: EEE is enabled Jan 19 18:02:53 ane NetworkManager[1735]: (eth0): carrier now ON (device state 8)
Jan 19 18:03:11 ane kernel: tg3 0000:04:00.0: eth0: Link is down Jan 19 18:03:11 ane NetworkManager[1735]: (eth0): carrier now OFF (device state 8, deferring action for 4 seconds)
Jan 19 18:03:14 ane kernel: tg3 0000:04:00.0: eth0: Link is up at 1000 Mbps, full duplex Jan 19 18:03:14 ane kernel: tg3 0000:04:00.0: eth0: Flow control is on for TX and on for RX
Jan 19 18:03:14 ane kernel: tg3 0000:04:00.0: eth0: EEE is enabled Jan 19 18:03:14 ane NetworkManager[1735]: (eth0): carrier now ON (device state 8)

One thought on - Tg3 Network Link Unstable

  • You were probably hit a bug described in this upstream article:

    https://access.redhat.com/solutions/1302043

    Check to see if the tg3 version is 3.137 (modinfo tg3). If so, one workaround is to downgrade the tg3 driver. Luckily, ELRepo’s kmod-tg3
    for EL6 is at 3.136. Install the kmod and see if this resolves the issue.

    Akemi