system hang

[David Wood]

The system hangs when I ask it to print, and I can't get it to panic and dump. Keyboard sysrq doesn't seem to do anything, nor does waiting 15 minutes. Using the text console makes no difference either. Memtest shows no errors. When I boot 4.4.0-112 kernel there's no problem.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-116-generic 4.4.0-116.140
ProcVersionSignature: Ubuntu 4.4.0-116.140-generic 4.4.98
Uname: Linux 4.4.0-116-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: dbw 1945 F.... pulseaudio
 /dev/snd/controlC1: dbw 1945 F.... pulseaudio
CurrentDesktop: MATE
Date: Sun Apr 1 19:16:11 2018
HibernationDevice: RESUME=UUID=94c6940e-4c23-4002-960a-45e56867ea6d
InstallationDate: Installed on 2016-05-06 (695 days ago)
InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
IwConfig:
 lo no wireless extensions.

 eno1 no wireless extensions.
MachineType: ASUS All Series
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-116-generic root=UUID=d0cf2d81-4dbf-4a5a-b898-285e3c3fdd8b ro quiet splash crashkernel=384M-2G:128M,2G-:256M vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-116-generic N/A
 linux-backports-modules-4.4.0-116-generic N/A
 linux-firmware 1.157.17
RfKill:

SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/11/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1304
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Z97-A
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
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.:bvr1304:bd07/11/2014:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnZ97-A:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: All Series
dmi.product.version: System Version
dmi.sys.vendor: ASUS

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream stable kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.4 stable kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.126

[David Wood (dbwood)]

The hang is gone in mainline 4.4.126, thanks.

[David Wood (dbwood)]

Information only: The hang is still present in linux-image-4.4.0-119-generic, but takes a few seconds longer (maybe 30 instead of instantly) to manifest.

[David Wood (dbwood)]

I tested mainline 4.4.119, and the hang is not present.

[David Wood (dbwood)]

I went back and tested mainline 4.4.113, 4.4.114, 4.4.115 and 4.4.116, none shows the hang.

[David Wood (dbwood)]

Latest kernel, 4.4.0-121-generic, from xenial main repository works now, thanks all for the fixes.

[Launchpad Janitor (janitor)]

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

[Launchpad Janitor (janitor)]

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