Every morning I wake my machine on at about 10 am (having hibernated it
the previous evening). A few minutes after this, NetworkManager
disconnects the network interface and I have to manually reconnect.
I have Debian running in a VirtualBox virtual machine. It's the host
machine that is being hibernated; from the VM's point of view, I think
it's as if time warped forward 16 hours.
Log entries from around that time:
Sep 29 10:01:39 leela kernel: [79457.347556] lo: Disabled Privacy Extensions
Sep 29 10:12:25 leela dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4
Sep 29 10:12:26 leela NetworkManager[989]: <info> (eth0): DHCPv4 state changed reboot -> expire
Sep 29 10:12:26 leela NetworkManager[989]: <info> (eth0): device state change: 8 -> 9 (reason 6)
Sep 29 10:12:28 leela NetworkManager[989]: <info> Marking connection 'Ifupdown (eth0)' invalid because IP configuration expired.
Sep 29 10:12:28 leela NetworkManager[989]: <warn> Activation (eth0) failed.
Sep 29 10:12:28 leela NetworkManager[989]: <info> (eth0): DHCPv4 state changed expire -> preinit
Sep 29 10:12:28 leela NetworkManager[989]: <info> (eth0): device state change: 9 -> 3 (reason 0)
Sep 29 10:12:28 leela NetworkManager[989]: <info> (eth0): deactivating device (reason: 0).
Sep 29 10:12:28 leela NetworkManager[989]: <info> (eth0): canceled DHCP transaction, DHCP client pid 14836
Sep 29 10:12:29 leela NetworkManager[989]: <error> [1285751549.687019] [nm-system.c:1229] check_one_route(): (eth0): error -34 returned from rtnl_route_del(): Netlink Error (errno = Numerical result out of range)
Sep 29 10:12:31 leela avahi-daemon[1106]: Withdrawing address record for 10.0.1.112 on eth0.
Sep 29 10:12:31 leela avahi-daemon[1106]: Leaving mDNS multicast group on interface eth0.IPv4 with address 10.0.1.112.
Sep 29 10:12:31 leela avahi-daemon[1106]: Interface eth0.IPv4 no longer relevant for mDNS.
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) starting connection 'Ifupdown (eth0)'
Sep 29 10:12:41 leela NetworkManager[989]: <info> (eth0): device state change: 3 -> 4 (reason 0)
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) scheduled...
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) started...
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) scheduled...
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) complete.
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) starting...
Sep 29 10:12:41 leela NetworkManager[989]: <info> (eth0): device state change: 4 -> 5 (reason 0)
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) successful.
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) scheduled.
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) complete.
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) started...
Sep 29 10:12:41 leela NetworkManager[989]: <info> (eth0): device state change: 5 -> 7 (reason 0)
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Beginning DHCPv4 transaction (timeout in 45 seconds)
Sep 29 10:12:41 leela NetworkManager[989]: <info> dhclient started with pid 13760
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) complete.
Sep 29 10:12:41 leela dhclient: Internet Systems Consortium DHCP Client 4.1.1-P1
Sep 29 10:12:41 leela dhclient: Copyright 2004-2010 Internet Systems Consortium.
Sep 29 10:12:41 leela dhclient: All rights reserved.
Sep 29 10:12:41 leela dhclient: For info, please visit https://www.isc.org/software/dhcp/
Sep 29 10:12:41 leela dhclient:
Sep 29 10:12:41 leela NetworkManager[989]: <info> (eth0): DHCPv4 state changed nbi -> preinit
Sep 29 10:12:41 leela dhclient: Listening on LPF/eth0/08:00:27:9a:24:7a
Sep 29 10:12:41 leela dhclient: Sending on LPF/eth0/08:00:27:9a:24:7a
Sep 29 10:12:41 leela dhclient: Sending on Socket/fallback
Sep 29 10:12:41 leela dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7
Sep 29 10:12:41 leela dhclient: DHCPOFFER from 10.0.0.1
Sep 29 10:12:41 leela dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67
Sep 29 10:12:41 leela dhclient: DHCPACK from 10.0.0.1
Sep 29 10:12:41 leela NetworkManager[989]: <info> (eth0): DHCPv4 state changed preinit -> bound
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Stage 4 of 5 (IP4 Configure Get) scheduled...
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Stage 4 of 5 (IP4 Configure Get) started...
Sep 29 10:12:41 leela NetworkManager[989]: <info> address 10.0.1.115
Sep 29 10:12:41 leela NetworkManager[989]: <info> prefix 16 (255.255.0.0)
Sep 29 10:12:41 leela NetworkManager[989]: <info> gateway 10.0.0.1
Sep 29 10:12:41 leela dhclient: bound to 10.0.1.115 -- renewal in 37011 seconds.
Sep 29 10:12:41 leela NetworkManager[989]: <info> nameserver '194.168.4.100'
Sep 29 10:12:41 leela NetworkManager[989]: <info> nameserver '194.168.8.100'
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Stage 5 of 5 (IP Configure Commit) scheduled...
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Stage 4 of 5 (IP4 Configure Get) complete.
Sep 29 10:12:41 leela NetworkManager[989]: <info> Activation (eth0) Stage 5 of 5 (IP Configure Commit) started...
Sep 29 10:12:41 leela avahi-daemon[1106]: Joining mDNS multicast group on interface eth0.IPv4 with address 10.0.1.115.
Sep 29 10:12:41 leela avahi-daemon[1106]: New relevant interface eth0.IPv4 for mDNS.
Sep 29 10:12:41 leela avahi-daemon[1106]: Registering new address record for 10.0.1.115 on eth0.IPv4.
Sep 29 10:12:42 leela NetworkManager[989]: <info> (eth0): device state change: 7 -> 8 (reason 0)
Sep 29 10:12:42 leela NetworkManager[989]: <info> Policy set 'Ifupdown (eth0)' (eth0) as default for IPv4 routing and DNS.
Sep 29 10:12:42 leela NetworkManager[989]: <info> Activation (eth0) successful, device activated.
Sep 29 10:12:42 leela NetworkManager[989]: <info> Activation (eth0) Stage 5 of 5 (IP Configure Commit) complete.