thank you for your bug report, if the kernel crash it's a bug there, it
should be robust to anything userpace is doing, reassigning

** Package changed: network-manager (Ubuntu) => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/1707341

Title:
  nm-dispatcher caused kernel crash.

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  After "waking" (shaking my mouse) to revive the display server my
  machine was usable for about 1 minute after the wake. Then all of the
  sudden all of my USB devices lost power completely, my hard drives
  stopped spinning and the system was at a stand still. Reading into the
  log files I find that the last thing the system did before it died. It
  was in the process of a "dhcp4 change". I would also like to mention I
  was running 3 VNC server sessions at the same time, but none of the
  viewers were active. I also confirmed that the power supply is
  defiantly not the reason its a 1000 watt platinum PSU that is under a
  year old and the system was usable again after a reboot.

  I am using Kernel version 4.11.7 built from the mainline with the
  Ubuntu configuration. There were no custom modules loaded (nothing
  outside of the 16.04.2 repo)

  here is the log /var/log/syslog

  Jul 28 22:27:43 Nova-Omega dhclient[3065]: DHCPACK of 10.10.20.115 from 
10.10.20.1
  Jul 28 22:27:43 Nova-Omega NetworkManager[1181]: <info>  [1501295263.5871]   
address 10.10.20.115
  Jul 28 22:27:43 Nova-Omega NetworkManager[1181]: <info>  [1501295263.5871]   
plen 24 (255.255.255.0)
  Jul 28 22:27:43 Nova-Omega NetworkManager[1181]: <info>  [1501295263.5871]   
gateway 10.10.20.1
  Jul 28 22:27:43 Nova-Omega dhclient[3065]: bound to 10.10.20.115 -- renewal 
in 243 seconds.
  Jul 28 22:27:43 Nova-Omega NetworkManager[1181]: <info>  [1501295263.5871]   
server identifier 10.10.20.1
  Jul 28 22:27:43 Nova-Omega NetworkManager[1181]: <info>  [1501295263.5872]   
lease time 600
  Jul 28 22:27:43 Nova-Omega NetworkManager[1181]: <info>  [1501295263.5872]   
nameserver '8.8.8.8'
  Jul 28 22:27:43 Nova-Omega NetworkManager[1181]: <info>  [1501295263.5872]   
nameserver '8.8.4.4'
  Jul 28 22:27:43 Nova-Omega NetworkManager[1181]: <info>  [1501295263.5872] 
dhcp4 (enp35s0): state changed bound -> bound
  Jul 28 22:27:43 Nova-Omega dbus[1039]: [system] Activating via systemd: 
service name='org.freedesktop.nm_dispatcher' 
unit='dbus-org.freedesktop.nm-dispatcher.service'
  Jul 28 22:27:43 Nova-Omega systemd[1]: Starting Network Manager Script 
Dispatcher Service...
  Jul 28 22:27:43 Nova-Omega dbus[1039]: [system] Successfully activated 
service 'org.freedesktop.nm_dispatcher'
  Jul 28 22:27:43 Nova-Omega systemd[1]: Started Network Manager Script 
Dispatcher Service.
  Jul 28 22:27:43 Nova-Omega nm-dispatcher: req:1 'dhcp4-change' [enp35s0]: new 
request (2 scripts)
  Jul 28 22:27:43 Nova-Omega nm-dispatcher: req:1 'dhcp4-change' [enp35s0]: 
start running ordered scripts...
  Jul 28 22:31:46 Nova-Omega dhclient[3065]: DHCPREQUEST of 10.10.20.115 on 
enp35s0 to 10.10.20.1 port 67 (xid=0x2d7aba42)
  Jul 28 22:31:46 Nova-Omega dhclient[3065]: DHCPACK of 10.10.20.115 from 
10.10.20.1
  Jul 28 22:31:46 Nova-Omega NetworkManager[1181]: <info>  [1501295506.1854]   
address 10.10.20.115
  Jul 28 22:31:46 Nova-Omega NetworkManager[1181]: <info>  [1501295506.1854]   
plen 24 (255.255.255.0)
  Jul 28 22:31:46 Nova-Omega NetworkManager[1181]: <info>  [1501295506.1855]   
gateway 10.10.20.1
  Jul 28 22:31:46 Nova-Omega NetworkManager[1181]: <info>  [1501295506.1855]   
server identifier 10.10.20.1
  Jul 28 22:31:46 Nova-Omega NetworkManager[1181]: <info>  [1501295506.1855]   
lease time 600
  Jul 28 22:31:46 Nova-Omega NetworkManager[1181]: <info>  [1501295506.1855]   
nameserver '8.8.8.8'
  Jul 28 22:31:46 Nova-Omega NetworkManager[1181]: <info>  [1501295506.1855]   
nameserver '8.8.4.4'
  Jul 28 22:31:46 Nova-Omega NetworkManager[1181]: <info>  [1501295506.1856] 
dhcp4 (enp35s0): state changed bound -> bound
  Jul 28 22:31:46 Nova-Omega dbus[1039]: [system] Activating via systemd: 
service name='org.freedesktop.nm_dispatcher' 
unit='dbus-org.freedesktop.nm-dispatcher.service'
  Jul 28 22:31:46 Nova-Omega systemd[1]: Starting Network Manager Script 
Dispatcher Service...
  Jul 28 22:31:46 Nova-Omega dhclient[3065]: bound to 10.10.20.115 -- renewal 
in 298 seconds.
  Jul 28 22:31:46 Nova-Omega dbus[1039]: [system] Successfully activated 
service 'org.freedesktop.nm_dispatcher'
  Jul 28 22:31:46 Nova-Omega systemd[1]: Started Network Manager Script 
Dispatcher Service.
  Jul 28 22:31:46 Nova-Omega nm-dispatcher: req:1 'dhcp4-change' [enp35s0]: new 
request (2 scripts)
  Jul 28 22:31:46 Nova-Omega nm-dispatcher: req:1 'dhcp4-change' [enp35s0]: 
start running ordered scripts...
  Jul 28 22:33:16 Nova-Omega smartd[1021]: Device: /dev/sda [SAT], SMART Usage 
Attribute: 189 Airflow_Temperature_Cel changed from 27 to 26
  Jul 28 22:33:16 Nova-Omega smartd[1021]: Device: /dev/sda [SAT], SMART Usage 
Attribute: 194 Temperature_Celsius changed from 27 to 26
  Jul 28 22:33:17 Nova-Omega smartd[1021]: Device: /dev/sdc [SAT], SMART Usage 
Attribute: 194 Temperature_Celsius changed from 214 to 222
  Jul 28 22:37:27 Nova-Omega rsyslogd: [origin software="rsyslogd" 
swVersion="8.16.0" x-pid="1043" x-info="http://www.rsyslog.com";] start
  Jul 28 22:37:27 Nova-Omega rsyslogd-2222: command 
'KLogPermitNonKernelFacility' is currently not permitted - did you already set 
it via a RainerScript command (v6+ config)? [v8.16.0 try 
http://www.rsyslog.com/e/2222 ]
  Jul 28 22:37:27 Nova-Omega rsyslogd: rsyslogd's groupid changed to 108
  Jul 28 22:37:27 Nova-Omega rsyslogd: rsyslogd's userid changed to 104
  Jul 28 22:37:27 Nova-Omega systemd-modules-load[363]: Inserted module 'lp'
  Jul 28 22:37:27 Nova-Omega systemd-modules-load[363]: Inserted module 'ppdev'
  Jul 28 22:37:27 Nova-Omega systemd-modules-load[363]: Inserted module 
'parport_pc'
  Jul 28 22:37:27 Nova-Omega systemd[1]: Started Load Kernel Modules.
  Jul 28 22:37:27 Nova-Omega systemd[1]: Starting Apply Kernel Variables...
  Jul 28 22:37:27 Nova-Omega systemd[1]: Mounting FUSE Control File System...
  Jul 28 22:37:27 Nova-Omega systemd[1]: Mounted FUSE Control File System.
  Jul 28 22:37:27 Nova-Omega ureadahead[369]: ureadahead: Error while tracing: 
No such file or directory
  Jul 28 22:37:27 Nova-Omega ureadahead[369]: Counted 16 CPUs
  Jul 28 22:37:27 Nova-Omega systemd[1]: ureadahead.service: Main process 
exited, code=exited, status=5/NOTINSTALLED
  Jul 28 22:37:27 Nova-Omega systemd[1]: ureadahead.service: Unit entered 
failed state.
  Jul 28 22:37:27 Nova-Omega systemd[1]: ureadahead.service: Failed with result 
'exit-code'.
  Jul 28 22:37:27 Nova-Omega rsyslogd-2039: Could not open output pipe 
'/dev/xconsole':: No such file or directory [v8.16.0 try 
http://www.rsyslog.com/e/2039 ]
  Jul 28 22:37:27 Nova-Omega systemd[1]: Started Apply Kernel Variables.
  Jul 28 22:37:27 Nova-Omega systemd[1]: Started Create Static Device Nodes in 
/dev.
  Jul 28 22:37:27 Nova-Omega systemd[1]: Starting udev Kernel Device Manager...
  Jul 28 22:37:27 Nova-Omega loadkeys[365]: Loading 
/etc/console-setup/cached.kmap.gz
  Jul 28 22:37:27 Nova-Omega systemd[1]: Started Set console keymap.
  Jul 28 22:37:27 Nova-Omega rsyslogd-2007: action 'action 10' suspended, next 
retry is Fri Jul 28 22:37:57 2017 [v8.16.0 try http://www.rsyslog.com/e/2007 ]
  Jul 28 22:37:27 Nova-Omega systemd[1]: Mounted RPC Pipe File System.
  Jul 28 22:37:27 Nova-Omega systemd[1]: Started udev Kernel Device Manager.
  Jul 28 22:37:27 Nova-Omega systemd[1]: Starting LSB: QEMU KVM module loading 
script...
  Jul 28 22:37:27 Nova-Omega systemd[1]: Starting Remount Root and Kernel File 
Systems...
  Jul 28 22:37:27 Nova-Omega kernel: [    0.000000] Linux version 4.11.7 
(scott@Nova-Omega) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 
) #1 SMP Tue Jun 27 20:59:20 EDT 2017
  Jul 28 22:37:27 Nova-Omega kernel: [    0.000000] Command line: 
BOOT_IMAGE=/boot/vmlinuz-4.11.7 root=UUID=1aa5ba4f-a73b-4857-af87-434bd735665e 
ro splash quiet vt.handoff=7
  Jul 28 22:37:27 Nova-Omega systemd[1]: Started Remount Root and Kernel File 
Systems.
  Jul 28 22:37:27 Nova-Omega kernel: [    0.000000] KERNEL supported cpus:
  Jul 28 22:37:27 Nova-Omega kernel: [    0.000000]   Intel GenuineIntel
  Jul 28 22:37:27 Nova-Omega kernel: [    0.000000]   AMD AuthenticAMD

  
  I am more than willing to supply any further testing, logs, or answers in 
order to help gets this resolved. This is the first time I have ever seen this 
issue and my first time having a issue with networking/network manager

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