BUG: unable to handle kernel paging request at 34c03000

[Clon]

System freez after upgrade, while browsing in firefox and shotr after removing of flashdrive.

I can not determine what causr freez.

ProblemType: KernelOops
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-7-generic 4.2.0-7.7
ProcVersionSignature: Ubuntu 4.2.0-7.7-generic 4.2.0
Uname: Linux 4.2.0-7-generic i686
Annotation: Your system might become unstable now and might need to be restarted.
ApportVersion: 2.18.1-0ubuntu1
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: clon 1561 F.... pulseaudio
 /dev/snd/seq: timidity 771 F.... timidity
Date: Sun Sep 13 09:36:30 2015
DuplicateSignature: BUG: unable to handle kernel paging request at location EIP: location __percpu_counter_add+0x14/0xa0 SS:ESP 0068:e75b5dc0
Failure: oops
HibernationDevice: RESUME=UUID=7487f502-5343-4e22-b4cf-6decd3b11281
InstallationDate: Installed on 2013-03-16 (911 days ago)
InstallationMedia: Lubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.1)
IwConfig:
 lo no wireless extensions.

 eth1 no wireless extensions.
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-7-generic root=/dev/mapper/lubuntu-root ro plymouth:debug splash quiet drm.debug=0xe plymouth:debug=1=1
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+git20090217-3ubuntu8
RfKill:

SourcePackage: linux
Title: BUG: unable to handle kernel paging request at 34c03000
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/25/2005
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F2
dmi.board.name: K8T800-8237
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: 1.x
dmi.chassis.type: 3
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF2:bd07/25/2005:svn:pn:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnK8T800-8237:rvr1.x:cvn:ct3:cvr:

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Are you able to reproduce the freeze, or was it a one time event?

[Clon (fillip1)]

Now is my system unstable because various reasons, these is not "one" time but "no-often" times event.
I think i can't reproduce that.