ubuntu randomly crashes with frozen kernel - camera shot attached

[George]

New install of Ubuntu 14.0.4 on Dell system, x64 with i3 processor, 10GB RAM, 40GB partition.
Problem repeatably arises when running python code with high memory usage - also sometime randomly occurs - such as when copying 6GB of files from external HD

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-46-generic 3.13.0-46.76
ProcVersionSignature: Ubuntu 3.13.0-46.76-generic 3.13.11-ckt15
Uname: Linux 3.13.0-46-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: gchao 1825 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon Mar 2 22:49:29 2015
HibernationDevice: RESUME=UUID=ea6c4e08-c612-4ad0-b2e5-229a26ad6497
InstallationDate: Installed on 2015-02-23 (7 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
IwConfig:
 eth0 no wireless extensions.

 lo no wireless extensions.
MachineType: Dell Inc. OptiPlex 980
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-46-generic root=UUID=3c9b5aea-1484-45ca-ab78-2b769fa3db3c ro debug ignore_loglevel crashkernel=384M-:128M
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-46-generic N/A
 linux-backports-modules-3.13.0-46-generic N/A
 linux-firmware 1.127.11
RfKill:

SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/03/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0C522T
dmi.board.vendor: Dell Inc.
dmi.board.version: A03
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA05:bd11/03/2010:svnDellInc.:pnOptiPlex980:pvr:rvnDellInc.:rn0C522T:rvrA03:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex 980
dmi.sys.vendor: Dell Inc.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.0 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/v4.0-rc1-vivid/

[George (gchao6)]

Hi Joseph,

   Thanks for the reply! I've never installed a kernel itself (without installing the whole Ubuntu system) before, but I'll give it a try!

-George

[George (gchao6)]

I was hoping there was some obvious setting for memory management that I could tweak that would fix everything XD.

[Launchpad Janitor (janitor)]

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