NetworkManager crashed with SIGSEGV in nm_dns_manager_end_updates()

[twicejr]

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

[twicejr (twicejr)]

I use NO wifi, by the way.

[twicejr (twicejr)]

Not even an adapter present in this pc.

[Apport retracing service (apport)]

StacktraceTop:
 nm_dns_manager_end_updates (self=0x55b4969d70a0, func=0x55b4953465e0 <__func__.34005> "device_ip4_config_changed") at dns-manager/nm-dns-manager.c:1364
 ffi_call_unix64 () from /tmp/apport_sandbox_8HAtJC/usr/lib/x86_64-linux-gnu/libffi.so.6
 ffi_call () from /tmp/apport_sandbox_8HAtJC/usr/lib/x86_64-linux-gnu/libffi.so.6
 g_cclosure_marshal_generic_va () from /tmp/apport_sandbox_8HAtJC/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 _g_closure_invoke_va () from /tmp/apport_sandbox_8HAtJC/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Travis Downs (travis-downs)]

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