Public bug reported: Whenever I unplug my USB ethernet adapter, NetworkManager stays in the "connected" state. There are a few errors in syslog; it also mentions a bug related to unmanaged devices, but the device is (or should be) managed by NetworkManager:
Dec 3 17:20:31 dima-xps kernel: [15360.449644] usb 3-1: USB disconnect, device number 2 Dec 3 17:20:31 dima-xps kernel: [15360.449655] usb 3-1.2: USB disconnect, device number 3 Dec 3 17:20:31 dima-xps kernel: [15360.449816] smsc75xx 3-1.2:1.0 eth0: unregister 'smsc75xx' usb-0000:03:00.0-1.2, smsc75xx USB 2.0 Gigabit Ethernet Dec 3 17:20:31 dima-xps avahi-daemon[540]: Interface eth0.IPv4 no longer relevant for mDNS. Dec 3 17:20:31 dima-xps avahi-daemon[540]: Leaving mDNS multicast group on interface eth0.IPv4 with address 172.16.10.140. Dec 3 17:20:31 dima-xps dhclient: receive_packet failed on eth0: Network is down Dec 3 17:20:31 dima-xps kernel: [15360.480394] usb 3-1.4: USB disconnect, device number 4 Dec 3 17:20:31 dima-xps NetworkManager[835]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Dec 3 17:20:31 dima-xps avahi-daemon[540]: Withdrawing address record for 2620:c6:8000:100:20e:c6ff:fe89:aab9 on eth0. Dec 3 17:20:31 dima-xps avahi-daemon[540]: Withdrawing address record for 172.16.10.140 on eth0. Dec 3 17:20:31 dima-xps avahi-daemon[540]: Withdrawing workstation service for eth0. Dec 3 17:20:31 dima-xps NetworkManager[835]: SCPlugin-Ifupdown: devices removed (path: /sys/devices/pci0000:00/0000:00:1c.3/0000:03:00.0/usb3/3-1/3-1.2/3-1.2:1.0/net/eth0, iface: eth0) Dec 3 17:20:31 dima-xps NetworkManager[835]: <info> (eth0): device state change: activated -> unmanaged (reason 'removed') [100 10 36] Dec 3 17:20:31 dima-xps NetworkManager[835]: <info> (eth0): deactivating device (reason 'removed') [36] Dec 3 17:20:31 dima-xps NetworkManager[835]: <info> (eth0): canceled DHCP transaction, DHCP client pid 1862 Dec 3 17:20:31 dima-xps NetworkManager[835]: <warn> sysctl: failed to open '/proc/sys/net/ipv6/conf/eth0/accept_ra': (2) No such file or directory Dec 3 17:20:31 dima-xps NetworkManager[835]: <warn> sysctl: failed to open '/proc/sys/net/ipv6/conf/eth0/use_tempaddr': (2) No such file or directory Dec 3 17:20:31 dima-xps NetworkManager[835]: <warn> (3) failed to find interface name for index Dec 3 17:20:31 dima-xps NetworkManager[835]: nm_system_iface_flush_routes: assertion 'iface != NULL' failed Dec 3 17:20:31 dima-xps NetworkManager[835]: <warn> (3) failed to find interface name for index Dec 3 17:20:31 dima-xps NetworkManager[835]: <warn> DNS: plugin dnsmasq update failed Dec 3 17:20:31 dima-xps NetworkManager[835]: <info> Removing DNS information from /sbin/resolvconf Dec 3 17:20:31 dima-xps dnsmasq[1434]: setting upstream servers from DBus Dec 3 17:20:31 dima-xps NetworkManager[835]: <info> (eth0): cleaning up... Dec 3 17:20:31 dima-xps NetworkManager[835]: <warn> (3) failed to find interface name for index Dec 3 17:20:31 dima-xps NetworkManager[835]: (nm-system.c:766):nm_system_iface_get_flags: runtime check failed: (iface != NULL) Dec 3 17:20:31 dima-xps NetworkManager[835]: <error> [1386120031.651217] [nm-system.c:768] nm_system_iface_get_flags(): (unknown): failed to get interface link object Dec 3 17:20:31 dima-xps NetworkManager[835]: <info> Unmanaged Device found; state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889) ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: network-manager 0.9.8.0-0ubuntu22 ProcVersionSignature: Ubuntu 3.8.0-29.42-generic 3.8.13.5 Uname: Linux 3.8.0-29-generic x86_64 ApportVersion: 2.12.5-0ubuntu2.1 Architecture: amd64 Date: Tue Dec 3 17:23:20 2013 EcryptfsInUse: Yes IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2013-04-05 (243 days ago) InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1) IpRoute: default via 172.16.80.1 dev wlan0 proto static 172.16.80.0/22 dev wlan0 proto kernel scope link src 172.16.80.167 metric 9 MarkForUpload: True NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true SourcePackage: network-manager UpgradeStatus: Upgraded to saucy on 2013-10-24 (40 days ago) nmcli-dev: DEVICE TYPE STATE DBUS-PATH wlan0 802-11-wireless connected /org/freedesktop/NetworkManager/Devices/0 nmcli-nm: RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN running 0.9.8.0 connected enabled enabled enabled enabled disabled ** Affects: network-manager (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug saucy -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1257551 Title: NetworkManager fails to detect when an ethernet device gets unplugged Status in “network-manager” package in Ubuntu: New Bug description: Whenever I unplug my USB ethernet adapter, NetworkManager stays in the "connected" state. There are a few errors in syslog; it also mentions a bug related to unmanaged devices, but the device is (or should be) managed by NetworkManager: Dec 3 17:20:31 dima-xps kernel: [15360.449644] usb 3-1: USB disconnect, device number 2 Dec 3 17:20:31 dima-xps kernel: [15360.449655] usb 3-1.2: USB disconnect, device number 3 Dec 3 17:20:31 dima-xps kernel: [15360.449816] smsc75xx 3-1.2:1.0 eth0: unregister 'smsc75xx' usb-0000:03:00.0-1.2, smsc75xx USB 2.0 Gigabit Ethernet Dec 3 17:20:31 dima-xps avahi-daemon[540]: Interface eth0.IPv4 no longer relevant for mDNS. Dec 3 17:20:31 dima-xps avahi-daemon[540]: Leaving mDNS multicast group on interface eth0.IPv4 with address 172.16.10.140. Dec 3 17:20:31 dima-xps dhclient: receive_packet failed on eth0: Network is down Dec 3 17:20:31 dima-xps kernel: [15360.480394] usb 3-1.4: USB disconnect, device number 4 Dec 3 17:20:31 dima-xps NetworkManager[835]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Dec 3 17:20:31 dima-xps avahi-daemon[540]: Withdrawing address record for 2620:c6:8000:100:20e:c6ff:fe89:aab9 on eth0. Dec 3 17:20:31 dima-xps avahi-daemon[540]: Withdrawing address record for 172.16.10.140 on eth0. Dec 3 17:20:31 dima-xps avahi-daemon[540]: Withdrawing workstation service for eth0. Dec 3 17:20:31 dima-xps NetworkManager[835]: SCPlugin-Ifupdown: devices removed (path: /sys/devices/pci0000:00/0000:00:1c.3/0000:03:00.0/usb3/3-1/3-1.2/3-1.2:1.0/net/eth0, iface: eth0) Dec 3 17:20:31 dima-xps NetworkManager[835]: <info> (eth0): device state change: activated -> unmanaged (reason 'removed') [100 10 36] Dec 3 17:20:31 dima-xps NetworkManager[835]: <info> (eth0): deactivating device (reason 'removed') [36] Dec 3 17:20:31 dima-xps NetworkManager[835]: <info> (eth0): canceled DHCP transaction, DHCP client pid 1862 Dec 3 17:20:31 dima-xps NetworkManager[835]: <warn> sysctl: failed to open '/proc/sys/net/ipv6/conf/eth0/accept_ra': (2) No such file or directory Dec 3 17:20:31 dima-xps NetworkManager[835]: <warn> sysctl: failed to open '/proc/sys/net/ipv6/conf/eth0/use_tempaddr': (2) No such file or directory Dec 3 17:20:31 dima-xps NetworkManager[835]: <warn> (3) failed to find interface name for index Dec 3 17:20:31 dima-xps NetworkManager[835]: nm_system_iface_flush_routes: assertion 'iface != NULL' failed Dec 3 17:20:31 dima-xps NetworkManager[835]: <warn> (3) failed to find interface name for index Dec 3 17:20:31 dima-xps NetworkManager[835]: <warn> DNS: plugin dnsmasq update failed Dec 3 17:20:31 dima-xps NetworkManager[835]: <info> Removing DNS information from /sbin/resolvconf Dec 3 17:20:31 dima-xps dnsmasq[1434]: setting upstream servers from DBus Dec 3 17:20:31 dima-xps NetworkManager[835]: <info> (eth0): cleaning up... Dec 3 17:20:31 dima-xps NetworkManager[835]: <warn> (3) failed to find interface name for index Dec 3 17:20:31 dima-xps NetworkManager[835]: (nm-system.c:766):nm_system_iface_get_flags: runtime check failed: (iface != NULL) Dec 3 17:20:31 dima-xps NetworkManager[835]: <error> [1386120031.651217] [nm-system.c:768] nm_system_iface_get_flags(): (unknown): failed to get interface link object Dec 3 17:20:31 dima-xps NetworkManager[835]: <info> Unmanaged Device found; state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889) ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: network-manager 0.9.8.0-0ubuntu22 ProcVersionSignature: Ubuntu 3.8.0-29.42-generic 3.8.13.5 Uname: Linux 3.8.0-29-generic x86_64 ApportVersion: 2.12.5-0ubuntu2.1 Architecture: amd64 Date: Tue Dec 3 17:23:20 2013 EcryptfsInUse: Yes IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2013-04-05 (243 days ago) InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1) IpRoute: default via 172.16.80.1 dev wlan0 proto static 172.16.80.0/22 dev wlan0 proto kernel scope link src 172.16.80.167 metric 9 MarkForUpload: True NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true SourcePackage: network-manager UpgradeStatus: Upgraded to saucy on 2013-10-24 (40 days ago) nmcli-dev: DEVICE TYPE STATE DBUS-PATH wlan0 802-11-wireless connected /org/freedesktop/NetworkManager/Devices/0 nmcli-nm: RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN running 0.9.8.0 connected enabled enabled enabled enabled disabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1257551/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
