PulseAudio locks up sound and not sound can be played

[AhronZombi]

Binary package hint: pulseaudio

I have a 2 user account system. when someone is using sound on one account it can freeze the pulseaudio instance and then no one else can play any sound from any app. Loging all account out , rebooting, and sudo killall pulseaudio resolve the issue temporarily.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: pulseaudio 1:0.9.22~0.9.21+stable-queue-32-g8478-0ubuntu14
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ahron 15822 F.... pulseaudio
 /dev/snd/pcmC0D0p: ahron 15822 F...m pulseaudio
Card0.Amixer.info:
 Card hw:0 'NVidia'/'HDA NVidia at 0xfe024000 irq 22'
   Mixer name : 'Realtek ALC888'
   Components : 'HDA:10ec0888,103c2a34,00100001'
   Controls : 32
   Simple ctrls : 18
Date: Thu Apr 8 10:02:53 2010
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: pulseaudio
dmi.bios.date: 12/15/2006
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 5.04
dmi.board.name: NODUSM3
dmi.board.vendor: ASUSTek Computer INC.
dmi.board.version: 1.05
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: 1111
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr5.04:bd12/15/2006:svnCompaq-Presario:pnRK539AA-ABASR2173WM:pvr:rvnASUSTekComputerINC.:rnNODUSM3:rvr1.05:cvnHewlett-Packard:ct3:cvr1111:
dmi.product.name: RK539AA-ABA SR2173WM
dmi.sys.vendor: Compaq-Presario