Public bug reported: Ever since I updated this system to 18.04, the ethernet has been resetting several times per second. /var/log/syslog looks like this fairly rapidly. It makes updating awkward. I have to keep restarting the update because it keeps complaining intermittently about being unable to contact the repository, but the system is currently up to date as of a few minutes ago. syslog looks like this: Apr 15 16:00:30 notebook kernel: [42489.401932] atl1 0000:02:00.0: enp2s0 link is up 100 Mbps full duplex Apr 15 16:00:31 notebook kernel: [42490.810245] atl1 0000:02:00.0: enp2s0 link is down Apr 15 16:00:31 notebook kernel: [42490.819643] atl1 0000:02:00.0: enp2s0 link is up 100 Mbps full duplex Apr 15 16:00:32 notebook kernel: [42491.281258] atl1 0000:02:00.0: enp2s0 link is down Apr 15 16:00:32 notebook kernel: [42491.286405] atl1 0000:02:00.0: enp2s0 link is up 100 Mbps full duplex Apr 15 16:00:33 notebook kernel: [42492.223598] atl1 0000:02:00.0: enp2s0 link is down Apr 15 16:00:33 notebook kernel: [42492.228567] atl1 0000:02:00.0: enp2s0 link is up 100 Mbps full duplex
1) Here is lsb_release -rd: Description: Ubuntu 18.04 LTS Release: 18.04 2) apt-cache policy pkgname: NA, as far as I know. 3) What you expected to happen: Ethernet to stay up 4) What happened instead: It keeps bouncing like atrial flutter! kern.log and syslog files are filled from top to bottom with lines like those shown above. Similarly, dmesg -d shows only lines like: [43956.763221 < 0.005033>] atl1 0000:02:00.0: enp2s0 link is up 100 Mbps full duplex [43957.230123 < 0.466902>] atl1 0000:02:00.0: enp2s0 link is down [43957.235245 < 0.005122>] atl1 0000:02:00.0: enp2s0 link is up 100 Mbps full duplex [43957.701180 < 0.465935>] atl1 0000:02:00.0: enp2s0 link is down [43957.706210 < 0.005030>] atl1 0000:02:00.0: enp2s0 link is up 100 Mbps full duplex [43959.115537 < 1.409327>] atl1 0000:02:00.0: enp2s0 link is down [43959.120522 < 0.004985>] atl1 0000:02:00.0: enp2s0 link is up 100 Mbps full duplex [43959.586944 < 0.466422>] atl1 0000:02:00.0: enp2s0 link is down [43959.591890 < 0.004946>] atl1 0000:02:00.0: enp2s0 link is up 100 Mbps full duplex [43960.058258 < 0.466368>] atl1 0000:02:00.0: enp2s0 link is down [43960.063293 < 0.005035>] atl1 0000:02:00.0: enp2s0 link is up 100 Mbps full duplex [43960.529823 < 0.466530>] atl1 0000:02:00.0: enp2s0 link is down [43960.534784 < 0.004961>] atl1 0000:02:00.0: enp2s0 link is up 100 Mbps full duplex [43962.415925 < 1.881141>] atl1 0000:02:00.0: enp2s0 link is down [43962.421103 < 0.005178>] atl1 0000:02:00.0: enp2s0 link is up 100 Mbps full duplex ** Affects: lxdm (Ubuntu) Importance: Undecided Status: New ** Attachment added: "dmesg and /var/log/apport*" https://bugs.launchpad.net/bugs/1824891/+attachment/5256077/+files/tarfile -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1824891 Title: ever since updating to 18.04 ethernet keeps resetting several times per second To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxdm/+bug/1824891/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs