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Created attachment 1430232 [details] Logs, ixgbe and NetworkManager 4.15.17 and 4.16.5 I get no ethernet connection with latest dnf upgrade. Fedora 27 Server. MB: Supermicro - A2SDi-8C-HLN4F (4 Ethernet con.) CPU: Intel C3758 (8cores) Memory 16GB Kernel 4.15.17 runs fine without any problems. May 2 18:43:08 server1 NetworkManager[1075]: <info> [1525279388.7593] dhcp4 (eno1): dhclient started with pid 1482 May 2 18:43:15 server1 audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' May 2 18:43:34 server1 systemd[1]: NetworkManager-wait-online.service: Main process exited, code=exited, status=1/FAILURE May 2 18:43:34 server1 audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=NetworkManager-wait-online comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=failed' May 2 18:43:34 server1 systemd[1]: NetworkManager-wait-online.service: Unit entered failed state. May 2 18:43:34 server1 systemd[1]: NetworkManager-wait-online.service: Failed with result 'exit-code'. May 2 18:43:40 server1 NetworkManager[1075]: <info> [1525279420.3408] ModemManager disappeared from bus
there is no crash visible in the logfile. it's also not visible what exactly happens so that you "get no ethernet connection".
Created attachment 1430850 [details] Logs, dhcp, nmdb and NetworkManager 4.15.17 and 4.16.5.log dhcp fault.
(In reply to Thomas Haller from comment #1) Yes, no actual crash but a failure. Look at May 2 18:43:34 server1 systemd[1]: NetworkManager-wait-online.service: Main process exited, code=exited, status=1/FAILURE Seems to be due dhcp can't get any data. see: Logs, dhcp, nmdb and NetworkManager 4.15.17 and 4.16.5.log Question is why it is working in 4.15.17 and not in 4.16.4/4.16.5.
grep dhc 'Logs, dhcp, nmdb and NetworkManager 4.15.17 and 4.16.5.log' 4.16.5: DHCPREQUEST DHCPREQUEST DHCPDISCOVER DHCPDISCOVER DHCPDISCOVER 4.15.17: DHCPREQUEST DHCPREQUEST DHCPACK
Cause same as 1572872 On 4.17.11-100.fc27.x86_64 https://bugzilla.redhat.com/show_bug.cgi?id=1572872 *** This bug has been marked as a duplicate of bug 1572872 ***