I believe I'm also having this problem. I've uploaded the whoopsie dump with apport but I can't see where it is being tracked (see http://askubuntu.com/questions/900191/where-do-i-look-to-see-if-my- whoopsie-is-being-tracked).
The stack looks the same: SegvAnalysis: Segfault happened at: 0x7fc79f90e830 <__libc_start_main+240>: mov %eax,%edi PC (0x7fc79f90e830) ok source "%eax" ok destination "%edi" ok SP (0x7ffc12fba2c0) ok Reason could not be automatically determined. SourcePackage: network-manager Stacktrace: #0 0x000000000048cc66 in nm_dns_manager_end_updates () #1 0x00007fc79d566e40 in ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6 #2 0x00007fc79d5668ab in ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6 #3 0x00007fc7a01f5cf5 in g_cclosure_marshal_generic_va () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #4 0x00007fc7a01f51d4 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #5 0x00007fc7a020f9a6 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #6 0x00007fc7a021008f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 This started happening when I commented out the dns=dnsmasq line in my NetworkManager.conf and indeed the crash happens in DNS related code. The often occurs after resuming from suspend, but not always - it may also just occur while using the host. Here's a link to the whoopise upload - I don't have perms to see it, but perhaps someone who does can associate it with this bug? https://errors.ubuntu.com/oops/f3ce1fb0-1957-11e7-968c-fa163e8d4bab -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1622571 Title: NetworkManager crashed with SIGSEGV in nm_dns_manager_end_updates() Status in network-manager package in Ubuntu: Confirmed Bug description: it appeared right after boot, but I do use a 4.8 kernel.. Linux jaypc 4.8.0-040800rc1-generic #201608072231 SMP Mon Aug 8 02:33:57 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux ProblemType: Crash DistroRelease: Ubuntu 16.10 Package: network-manager 1.2.2-0ubuntu8 Uname: Linux 4.6.0-040600-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 Date: Thu Sep 8 09:01:03 2016 ExecutablePath: /usr/sbin/NetworkManager IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2016-04-04 (160 days ago) InstallationMedia: It IpRoute: default via 192.168.11.1 dev enp3s0 proto static metric 100 169.254.0.0/16 dev enp3s0 scope link metric 1000 192.168.11.0/24 dev enp3s0 proto kernel scope link src 192.168.11.20 metric 100 IwConfig: lo no wireless extensions. enp3s0 no wireless extensions. NetworkManager.conf: [main] plugins=ifupdown,keyfile,ofono [ifupdown] managed=false NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true ProcCmdline: /usr/sbin/NetworkManager --no-daemon ProcEnviron: LANG=nl_NL.UTF-8 PATH=(custom, no user) RfKill: Can't open RFKILL control device: No such file or directory Signal: 11 SourcePackage: network-manager StacktraceTop: nm_dns_manager_end_updates () ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6 ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6 g_cclosure_marshal_generic_va () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 Title: NetworkManager crashed with SIGSEGV in nm_dns_manager_end_updates() UpgradeStatus: Upgraded to yakkety on 2016-05-20 (115 days ago) UserGroups: nmcli-con: NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT AUTOCONNECT-PRIORITY READONLY DBUS-PATH ACTIVE DEVICE STATE ACTIVE-PATH Wired connection 1 83b55d9f-56b0-3de7-8781-b60ac02d32da 802-3-ethernet 1473679209 ma 12 sep 2016 13:20:09 CEST yes 4294966297 no /org/freedesktop/NetworkManager/Settings/1 yes enp3s0 activated /org/freedesktop/NetworkManager/ActiveConnection/0 NETGEAR74 2508a31f-ca9b-47cc-a9e3-8f5be4686282 802-11-wireless 1463994465 ma 23 mei 2016 11:07:45 CEST yes 0 no /org/freedesktop/NetworkManager/Settings/0 no -- -- -- nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH enp3s0 ethernet connected /org/freedesktop/NetworkManager/Devices/0 Wired connection 1 83b55d9f-56b0-3de7-8781-b60ac02d32da /org/freedesktop/NetworkManager/ActiveConnection/0 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- -- nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.2.2 connected started full enabled enabled enabled enabled enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1622571/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp