Public bug reported:
i don't know
ProblemType: KernelOops
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Annotation: Your system might become unstable now and might need to be
restarted.
AplayDevices:
List of PLAYBACK Hardware Devices
card 1: default [USB
** Attachment added: AlsaDevices.txt
http://launchpadlibrarian.net/40498898/AlsaDevices.txt
** Attachment added: BootDmesg.txt
http://launchpadlibrarian.net/40498899/BootDmesg.txt
** Attachment added: Card0.Amixer.values.txt