NMI watchdog: BUG: soft lockup - CPU#2 stuck for 22s! [Xorg:1066]

[K.J. Rideout]

Bug appearers after resuming from suspend.

ProblemType: KernelOops
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-9-generic 4.4.0-9.24
ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3
Uname: Linux 4.4.0-9-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
Annotation: Your system might become unstable now and might need to be restarted.
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: kevin 1820 F.... pulseaudio
 /dev/snd/controlC0: kevin 1820 F.... pulseaudio
Date: Fri Mar 4 09:11:35 2016
Failure: oops
HibernationDevice: RESUME=UUID=48bd3ac2-2db1-4e2c-9cf2-ec8eea8be147
InstallationDate: Installed on 2016-02-27 (5 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160227)
IwConfig:
 enp3s0 no wireless extensions.

 lo no wireless extensions.
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcFB:
 0 EFI VGA
 1 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-9-generic.efi.signed root=/dev/mapper/ssdvg-lvroot ro noprompt persistent quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions: kerneloops-daemon 0.12+git20090217-3ubuntu9
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
Title: NMI watchdog: BUG: soft lockup - CPU#2 stuck for 22s! [Xorg:1066]
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/11/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P2.00
dmi.board.name: Z77 Pro4-M
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.00:bd07/11/2013:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnZ77Pro4-M:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.

[Brad Figg (brad-figg)]

This change was made by a bot.

[penalvch (penalvch)]

K.J. Rideout, thank you for reporting this and helping make Ubuntu better.

In order to allow additional upstream developers to examine the issue, at your earliest convenience, could you please test the latest upstream kernel available from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D ? Please keep in mind the following:
1) The one to test is at the very top line at the top of the page (not the daily folder).
2) The release names are irrelevant.
3) The folder time stamps aren't indicative of when the kernel actually was released upstream.
4) Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds .

If testing on your main install would be inconvenient, one may:
1) Install Ubuntu to a different partition and then test this there.
2) Backup, or clone the primary install.

If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ

Where X, and Y are the first two numbers of the kernel version, and Z is the release candidate number if it exists.

If the mainline kernel does not fix the issue, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream.

Also, you don't need to apport-collect further unless specifically requested to do so.

Once testing of the latest upstream kernel is complete, please mark this report Status Confirmed. Please let us know your results.

Thank you for your understanding.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]