*** This bug is a duplicate of bug 1543292 *** https://bugs.launchpad.net/bugs/1543292
** Description changed: - A was updating the OS of my home router and after this operation I found - that NM had crashed. + This crash is caused by running: - During the update process, the eth0 link went down then up several - times: + service network-manager restart - [341150.695483] NetworkManager[1146]: segfault at 168 ip 00000000004c3a4d sp 00007fff59212f10 error 4 in NetworkManager[400000+1bf000] - [341152.886800] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready - [341264.824755] r8169 0000:04:00.0 eth0: link down - [341272.468679] r8169 0000:04:00.0 eth0: link down - [341275.351709] r8169 0000:04:00.0 eth0: link up - [341297.726728] r8169 0000:04:00.0 eth0: link down - [341300.116211] r8169 0000:04:00.0 eth0: link up - [341313.195992] r8169 0000:04:00.0 eth0: link down - [341315.683529] r8169 0000:04:00.0 eth0: link up - [341411.112892] NetworkManager[6475]: segfault at 168 ip 00000000004c3a4d sp 00007fffc33659b0 error 4 in NetworkManager[400000+1bf000] - [341411.292994] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready - [341411.295245] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready - [341411.413031] r8169 0000:04:00.0 eth0: link down - [341411.413038] r8169 0000:04:00.0 eth0: link down - [341411.413113] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready - [341414.200647] r8169 0000:04:00.0 eth0: link up - [341414.200664] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready - [341553.518865] r8169 0000:04:00.0 eth0: link down - [341555.809064] r8169 0000:04:00.0 eth0: link up - [341588.851022] r8169 0000:04:00.0 eth0: link down - [341591.182066] r8169 0000:04:00.0 eth0: link up - [341608.640456] r8169 0000:04:00.0 eth0: link down - [341611.072695] r8169 0000:04:00.0 eth0: link up + Here is the crash as seen in dmesg: + + [341150.695483] NetworkManager[1146]: segfault at 168 ip + 00000000004c3a4d sp 00007fff59212f10 error 4 in + NetworkManager[400000+1bf000] + ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: network-manager 1.0.4-0ubuntu10 Uname: Linux 4.5.0-040500-lowlatency x86_64 ApportVersion: 2.20.1-0ubuntu1 Architecture: amd64 Date: Thu Apr 7 10:04:16 2016 ExecutablePath: /usr/sbin/NetworkManager IfupdownConfig: - auto lo - iface lo inet loopback + auto lo + iface lo inet loopback IpRoute: - default via 192.168.1.1 dev eth0 proto static metric 100 - 169.254.0.0/16 dev eth0 scope link metric 1000 - 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.11 metric 100 + default via 192.168.1.1 dev eth0 proto static metric 100 + 169.254.0.0/16 dev eth0 scope link metric 1000 + 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.11 metric 100 NetworkManager.state: - [main] - NetworkingEnabled=true - WirelessEnabled=false - WWANEnabled=true - WimaxEnabled=true + [main] + NetworkingEnabled=true + WirelessEnabled=false + WWANEnabled=true + WimaxEnabled=true ProcCmdline: /usr/sbin/NetworkManager --no-daemon ProcEnviron: - LANG=en_US.UTF-8 - PATH=(custom, no user) + LANG=en_US.UTF-8 + PATH=(custom, no user) SegvAnalysis: - Segfault happened at: 0x4c3a4d: mov 0x168(%rax),%r11d - PC (0x004c3a4d) ok - source "0x168(%rax)" (0x00000168) not located in a known VMA region (needed readable region)! - destination "%r11d" ok + Segfault happened at: 0x4c3a4d: mov 0x168(%rax),%r11d + PC (0x004c3a4d) ok + source "0x168(%rax)" (0x00000168) not located in a known VMA region (needed readable region)! + destination "%r11d" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: network-manager UpgradeStatus: Upgraded to xenial on 2016-03-31 (7 days ago) UserGroups: pkcs11 nmcli-con: - NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT AUTOCONNECT-PRIORITY READONLY DBUS-PATH ACTIVE DEVICE STATE ACTIVE-PATH - Nexus 5 Network 0ce24b6d-c704-4da9-8973-9b253e7d51d7 bluetooth 0 never no 0 no /org/freedesktop/NetworkManager/Settings/1 no -- -- -- - Wired connection 1 6e2ce64b-8cfc-4f0a-b4e1-4f5f8c6472c6 802-3-ethernet 1460031217 Thu 07 Apr 2016 02:13:37 PM CEST yes 0 no /org/freedesktop/NetworkManager/Settings/0 yes eth0 activated /org/freedesktop/NetworkManager/ActiveConnection/0 + NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT AUTOCONNECT-PRIORITY READONLY DBUS-PATH ACTIVE DEVICE STATE ACTIVE-PATH + Nexus 5 Network 0ce24b6d-c704-4da9-8973-9b253e7d51d7 bluetooth 0 never no 0 no /org/freedesktop/NetworkManager/Settings/1 no -- -- -- + Wired connection 1 6e2ce64b-8cfc-4f0a-b4e1-4f5f8c6472c6 802-3-ethernet 1460031217 Thu 07 Apr 2016 02:13:37 PM CEST yes 0 no /org/freedesktop/NetworkManager/Settings/0 yes eth0 activated /org/freedesktop/NetworkManager/ActiveConnection/0 nmcli-dev: - DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH - eth0 ethernet connected /org/freedesktop/NetworkManager/Devices/2 Wired connection 1 6e2ce64b-8cfc-4f0a-b4e1-4f5f8c6472c6 /org/freedesktop/NetworkManager/ActiveConnection/0 - BC:F5:AC:84:10:B5 bt disconnected /org/freedesktop/NetworkManager/Devices/3 -- -- -- - wlan0 wifi unavailable /org/freedesktop/NetworkManager/Devices/1 -- -- -- - lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/0 -- -- -- + DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH + eth0 ethernet connected /org/freedesktop/NetworkManager/Devices/2 Wired connection 1 6e2ce64b-8cfc-4f0a-b4e1-4f5f8c6472c6 /org/freedesktop/NetworkManager/ActiveConnection/0 + BC:F5:AC:84:10:B5 bt disconnected /org/freedesktop/NetworkManager/Devices/3 -- -- -- + wlan0 wifi unavailable /org/freedesktop/NetworkManager/Devices/1 -- -- -- + lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/0 -- -- -- nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'. ** Summary changed: - NM crash caused by down/up eth0 + NM crash caused by daemon restart -- 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/1567415 Title: NM crash caused by daemon restart Status in network-manager package in Ubuntu: New Bug description: This crash is caused by running: service network-manager restart Here is the crash as seen in dmesg: [341150.695483] NetworkManager[1146]: segfault at 168 ip 00000000004c3a4d sp 00007fff59212f10 error 4 in NetworkManager[400000+1bf000] ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: network-manager 1.0.4-0ubuntu10 Uname: Linux 4.5.0-040500-lowlatency x86_64 ApportVersion: 2.20.1-0ubuntu1 Architecture: amd64 Date: Thu Apr 7 10:04:16 2016 ExecutablePath: /usr/sbin/NetworkManager IfupdownConfig: auto lo iface lo inet loopback IpRoute: default via 192.168.1.1 dev eth0 proto static metric 100 169.254.0.0/16 dev eth0 scope link metric 1000 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.11 metric 100 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=false WWANEnabled=true WimaxEnabled=true ProcCmdline: /usr/sbin/NetworkManager --no-daemon ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SegvAnalysis: Segfault happened at: 0x4c3a4d: mov 0x168(%rax),%r11d PC (0x004c3a4d) ok source "0x168(%rax)" (0x00000168) not located in a known VMA region (needed readable region)! destination "%r11d" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: network-manager UpgradeStatus: Upgraded to xenial on 2016-03-31 (7 days ago) UserGroups: pkcs11 nmcli-con: NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT AUTOCONNECT-PRIORITY READONLY DBUS-PATH ACTIVE DEVICE STATE ACTIVE-PATH Nexus 5 Network 0ce24b6d-c704-4da9-8973-9b253e7d51d7 bluetooth 0 never no 0 no /org/freedesktop/NetworkManager/Settings/1 no -- -- -- Wired connection 1 6e2ce64b-8cfc-4f0a-b4e1-4f5f8c6472c6 802-3-ethernet 1460031217 Thu 07 Apr 2016 02:13:37 PM CEST yes 0 no /org/freedesktop/NetworkManager/Settings/0 yes eth0 activated /org/freedesktop/NetworkManager/ActiveConnection/0 nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH eth0 ethernet connected /org/freedesktop/NetworkManager/Devices/2 Wired connection 1 6e2ce64b-8cfc-4f0a-b4e1-4f5f8c6472c6 /org/freedesktop/NetworkManager/ActiveConnection/0 BC:F5:AC:84:10:B5 bt disconnected /org/freedesktop/NetworkManager/Devices/3 -- -- -- wlan0 wifi unavailable /org/freedesktop/NetworkManager/Devices/1 -- -- -- lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/0 -- -- -- nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'. 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