Bug 1268617

Created attachment 1079637 [details]
File: backtrace

Created attachment 1079638 [details]
File: cgroup

Created attachment 1079639 [details]
File: core_backtrace

Created attachment 1079640 [details]
File: dso_list

Created attachment 1079641 [details]
File: environ

Created attachment 1079642 [details]
File: limits

Created attachment 1079643 [details]
File: maps

Created attachment 1079644 [details]
File: mountinfo

Created attachment 1079645 [details]
File: namespaces

Created attachment 1079646 [details]
File: open_fds

Created attachment 1079647 [details]
File: proc_pid_status

Created attachment 1079648 [details]
File: var_log_messages

Mikhail, do you have any details on how the crash occurred?

Would you paste output of
$ nmcli con show 74e9ea2e-89a8-4f0c-9b70-8c5be75b80c0

$ nmcli con show 74e9ea2e-89a8-4f0c-9b70-8c5be75b80c0
connection.id:                          DSL connection 1
connection.uuid:                        74e9ea2e-89a8-4f0c-9b70-8c5be75b80c0
connection.interface-name:              --
connection.type:                        pppoe
connection.autoconnect:                 no
connection.autoconnect-priority:        0
connection.timestamp:                   1443891551
connection.read-only:                   no
connection.permissions:                 
connection.zone:                        --
connection.master:                      --
connection.slave-type:                  --
connection.autoconnect-slaves:          -1 (default)
connection.secondaries:                 
connection.gateway-ping-timeout:        0
connection.metered:                     unknown
802-3-ethernet.port:                    --
802-3-ethernet.speed:                   0
802-3-ethernet.duplex:                  full
802-3-ethernet.auto-negotiate:          yes
802-3-ethernet.mac-address:             --
802-3-ethernet.cloned-mac-address:      --
802-3-ethernet.mac-address-blacklist:   
802-3-ethernet.mtu:                     auto
802-3-ethernet.s390-subchannels:        
802-3-ethernet.s390-nettype:            --
802-3-ethernet.s390-options:            
802-3-ethernet.wake-on-lan:             default
802-3-ethernet.wake-on-lan-password:    --
ipv4.method:                            auto
ipv4.dns:                               
ipv4.dns-search:                        
ipv4.addresses:                         
ipv4.gateway:                           --
ipv4.routes:                            
ipv4.route-metric:                      -1
ipv4.ignore-auto-routes:                no
ipv4.ignore-auto-dns:                   no
ipv4.dhcp-client-id:                    --
ipv4.dhcp-send-hostname:                yes
ipv4.dhcp-hostname:                     --
ipv4.never-default:                     no
ipv4.may-fail:                          yes
ipv6.method:                            auto
ipv6.dns:                               
ipv6.dns-search:                        
ipv6.addresses:                         
ipv6.gateway:                           --
ipv6.routes:                            
ipv6.route-metric:                      -1
ipv6.ignore-auto-routes:                no
ipv6.ignore-auto-dns:                   no
ipv6.never-default:                     no
ipv6.may-fail:                          yes
ipv6.ip6-privacy:                       -1 (unknown)
ipv6.dhcp-send-hostname:                yes
ipv6.dhcp-hostname:                     --
ppp.noauth:                             yes
ppp.refuse-eap:                         no
ppp.refuse-pap:                         no
ppp.refuse-chap:                        no
ppp.refuse-mschap:                      no
ppp.refuse-mschapv2:                    no
ppp.nobsdcomp:                          no
ppp.nodeflate:                          no
ppp.no-vj-comp:                         no
ppp.require-mppe:                       no
ppp.require-mppe-128:                   no
ppp.mppe-stateful:                      no
ppp.crtscts:                            no
ppp.baud:                               0
ppp.mru:                                0
ppp.mtu:                                0
ppp.lcp-echo-failure:                   5
ppp.lcp-echo-interval:                  30
pppoe.service:                          --
pppoe.username:                         163285
pppoe.password:                         <hidden>
pppoe.password-flags:                   0 (none)


Oh I see that is "DSL connection 1". So this occurred when computer was connected to internet without router. 

I described how is not obvious setup pppoe  here: https://bugzilla.redhat.com/show_bug.cgi?id=1268605

And this crash likely occurred when I disconnected the network cable from the router to connect your computer directly to the network provider via switch.

Let me know if you are interested see "nmcli con show 74e9ea2e-89a8-4f0c-9b70-8c5be75b80c0" when pppoe connection is active.

Pushed fix to upstream branch bg/ppp-device-fixes-rh1268617.

LGTM; backport to 1.0 too?

Merged to master:

http://cgit.freedesktop.org/NetworkManager/NetworkManager/commit/?id=e72b8aa9234cbd4fee98b5a0e01901f66b58d5e1

and nm-1-0:

http://cgit.freedesktop.org/NetworkManager/NetworkManager/commit/?h=nm-1-0&id=8204c2a1968f757599c5ebec9a85efaacb0e522a
http://cgit.freedesktop.org/NetworkManager/NetworkManager/commit/?h=nm-1-0&id=cbcb848e6d4f4e8c4aa11c80f1f3dbb7fb2d397e

This bug was accidentally moved from POST to MODIFIED via an error in automation, please see mmccune with any questions

NetworkManager-1.0.12-1.fc23 has been pushed to the Fedora 23 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-8201e3fefa

NetworkManager-1.0.12-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.