BUG: pcmC1D0c:0, pos = 5461, buffer size = 5461, period size = 2730

under xubuntu 14.04 beta, intalled 2 days ago, 100% up to date

ProblemType: KernelOops
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-20-generic 3.13.0-20.42
ProcVersionSignature: Ubuntu 3.13.0-20.42-generic 3.13.7
Uname: Linux 3.13.0-20-generic x86_64
NonfreeKernelModules: nvidia
Annotation: Your system might become unstable now and might need to be restarted.
ApportVersion: 2.14-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: pascal 2028 F.... pulseaudio
 /dev/snd/controlC1: pascal 2028 F.... pulseaudio
 /dev/snd/controlC0: pascal 2028 F.... pulseaudio
Date: Tue Apr 1 00:54:27 2014
Failure: oops
HibernationDevice: RESUME=UUID=458ac276-99b4-43f6-9cbd-741448fc257a
InstallationDate: Installed on 2014-03-31 (0 days ago)
InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Beta amd64 (20140326)
IwConfig:
 eth0 no wireless extensions.

 lo no wireless extensions.
MachineType: Gigabyte Technology Co., Ltd. EX58-UD4
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-20-generic root=UUID=ba7067e2-fca1-43e7-8801-3734f8038ece ro quiet splash
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+git20090217-3ubuntu7
RfKill:

SourcePackage: linux
Title: BUG: pcmC1D0c:0, pos = 5461, buffer size = 5461, period size = 2730
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/11/2010
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F10
dmi.board.name: EX58-UD4
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.:bvrF10:bd03/11/2010:svnGigabyteTechnologyCo.,Ltd.:pnEX58-UD4:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnEX58-UD4:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: EX58-UD4
dmi.sys.vendor: Gigabyte Technology Co., Ltd.