pulseaudio crashed with SIGABRT in pa_xmalloc()

Was playing some audio from spotify to an external bluetooth speaker. Then the audio stalled, then pulse crashed.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: pulseaudio 1:4.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.11.0-4.9-generic 3.11.0-rc7
Uname: Linux 3.11.0-4-generic x86_64
ApportVersion: 2.12.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: alan 28523 F.... pulseaudio
 /dev/snd/controlC1: alan 28523 F.... pulseaudio
 /dev/snd/controlC0: alan 28523 F.... pulseaudio
Date: Mon Sep 2 14:32:56 2013
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/pulseaudio
InstallationDate: Installed on 2012-06-29 (429 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MarkForUpload: True
ProcCmdline: /usr/bin/pulseaudio --start --log-target=syslog
Signal: 6
SourcePackage: pulseaudio
StacktraceTop:
 pa_xmalloc () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-4.0.so
 pa_memblock_new () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-4.0.so
 pa_memchunk_make_writable () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-4.0.so
 pa_sink_render_full () from /usr/lib/libpulsecore-4.0.so
 ?? () from /usr/lib/pulse-4.0/modules/module-bluetooth-device.so
Title: pulseaudio crashed with SIGABRT in pa_xmalloc()
UpgradeStatus: Upgraded to saucy on 2013-07-12 (51 days ago)
UserGroups: adm autopilot cdrom dialout dip libvirtd lpadmin plugdev sambashare sudo
dmi.bios.date: 12/05/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 8DET67WW (1.37 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4287CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr8DET67WW(1.37):bd12/05/2012:svnLENOVO:pn4287CTO:pvrThinkPadX220:rvnLENOVO:rn4287CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4287CTO
dmi.product.version: ThinkPad X220
dmi.sys.vendor: LENOVO