Public bug reported:

CPU lockup experienced. Appears to be a bad PTE? Left google-chrome running for 
hours, untouched. Went to use it again and chrome stopped responding. dmesg 
showed a CPU stuck. Farther up it showed a bad PTE.
Machine passes memtest86.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-45-generic 3.13.0-45.74
ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13
Uname: Linux 3.13.0-45-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
CurrentDesktop: X-Cinnamon
Date: Tue May 26 19:12:47 2015
HibernationDevice: RESUME=UUID=b170f305-49ff-4e37-b417-1a977a8dc002
InstallationDate: Installed on 2014-06-06 (354 days ago)
InstallationMedia: Linux Mint 17 "Qiana" - Release amd64 20140530
IwConfig:
 eth0      no wireless extensions.
 
 eth1      no wireless extensions.
 
 lo        no wireless extensions.
MachineType: Gigabyte Technology Co., Ltd. GA-MA790GP-UD4H
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.utf8
 SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-45-generic 
root=UUID=3c298b14-cd0f-4d75-a2ca-c79623676014 ro 
crashkernel=384M-2G:64M,2G-:128M quiet splash crashkernel=384M-:128M 
vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-45-generic N/A
 linux-backports-modules-3.13.0-45-generic  N/A
 linux-firmware                             1.127.11
RfKill:
 
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/08/2010
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F7c
dmi.board.name: GA-MA790GP-UD4H
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: 
dmi:bvnAwardSoftwareInternational,Inc.:bvrF7c:bd07/08/2010:svnGigabyteTechnologyCo.,Ltd.:pnGA-MA790GP-UD4H:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-MA790GP-UD4H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: GA-MA790GP-UD4H
dmi.sys.vendor: Gigabyte Technology Co., Ltd.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug rebecca third-party-packages

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https://bugs.launchpad.net/bugs/1459052

Title:
  CPU lockup

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