pulseaudio crashed with SIGABRT in pa_memblock_ref()

[AJ Fite]

While using skype and rythmbox, pulseaudio crashed rendering all audio input and output devices useless.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: pulseaudio 1:1.1-0ubuntu10
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
Uname: Linux 3.2.0-17-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
ApportVersion: 1.93-0ubuntu2
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ajfite 17026 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xf4a20000 irq 56'
   Mixer name : 'Conexant CX20590'
   Components : 'HDA:14f1506e,17aa21cf,00100000'
   Controls : 18
   Simple ctrls : 10
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'
   Mixer name : 'ThinkPad EC (unknown)'
   Components : ''
   Controls : 1
   Simple ctrls : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Fri Feb 24 15:47:00 2012
ExecutablePath: /usr/bin/pulseaudio
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcCmdline: /usr/bin/pulseaudio --start --log-target=syslog
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 6
SourcePackage: pulseaudio
StacktraceTop:
 raise () from /lib/x86_64-linux-gnu/libc.so.6
 abort () from /lib/x86_64-linux-gnu/libc.so.6
 pa_memblock_ref () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
 pa_memblockq_peek () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
 pa_sink_input_peek () from /usr/lib/libpulsecore-1.1.so
Title: pulseaudio crashed with SIGABRT in raise()
UpgradeStatus: Upgraded to precise on 2012-02-23 (1 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 12/06/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 8BET55WW (1.35 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4270CTO
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:bvr8BET55WW(1.35):bd12/06/2011:svnLENOVO:pn4270CTO:pvrThinkPadW520:rvnLENOVO:rn4270CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4270CTO
dmi.product.version: ThinkPad W520
dmi.sys.vendor: LENOVO

[Apport retracing service (apport)]

StacktraceTop:
 pa_memblock_ref (b=<optimized out>) at pulsecore/memblock.c:493
 pa_memblockq_peek (bq=0x1cdcfa0, chunk=0x7f14427eb7c0) at pulsecore/memblockq.c:517
 pa_sink_input_peek (i=0x1d229c0, slength=448, chunk=0x7f14427eb7c0, volume=0x7f14427eb7d8) at pulsecore/sink-input.c:900
 fill_mix_info (s=0x1c78df0, length=0x7f14427edd38, info=0x7f14427eb7c0, maxinfo=31) at pulsecore/sink.c:917
 pa_sink_render_into (s=0x1c78df0, target=0x7f14427edd90) at pulsecore/sink.c:1156