Jan 22 01:51:41 trans3 kernel: [  475.440185] pulseaudio[4167]: segfault at ffffffff00000008 ip 00007f5e11933eda sp 00007fff15068eb0 error 4 in libc-2.10.1.so[7f5e118be000+166000]
Jan 22 01:51:46 trans3 pulseaudio[4187]: pid.c: Stale PID file, overwriting.

> uname -a 
Linux trans3 2.6.31-17-generic #54-Ubuntu SMP Thu Dec 10 17:01:44 UTC 2009 x86_64 GNU/Linux

00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)

 > dpkg -l | egrep -e 'alsa|pulse'
ii  alsa-base                                      1.0.20+dfsg-1ubuntu5                       ALSA driver configuration files
ii  alsa-firmware                                  1.0.17-0medibuntu2.9.10.1                  Contains firmware for ALSA devices - Medibun
ii  alsa-firmware-loaders                          1.0.20-1ubuntu1                            ALSA software loaders for specific hardware
ii  alsa-tools                                     1.0.20-1ubuntu1                            Console based ALSA utilities for specific ha
ii  alsa-utils                                     1.0.20-2ubuntu6                            ALSA utilities
ii  bluez-alsa                                     4.51-0ubuntu2                              Bluetooth audio support
ii  bse-alsa                                       0.7.1-1                                    ALSA plugin for BEAST
ii  gstreamer0.10-alsa                             0.10.25-2ubuntu1.2                         GStreamer plugin for ALSA
ii  gstreamer0.10-pulseaudio                       0.10.16-1ubuntu3                           GStreamer plugin for PulseAudio
ii  libcanberra-pulse                              0.15-0ubuntu7                              a simple abstract interface for playing even
ii  libesd-alsa0                                   0.2.41-5                                   Enlightened Sound Daemon (ALSA) - Shared lib
ii  libpulse-browse0                               1:0.9.19-0ubuntu4                          PulseAudio client libraries (zeroconf suppor
ii  libpulse-dev                                   1:0.9.19-0ubuntu4                          PulseAudio client development headers and li
ii  libpulse-mainloop-glib0                        1:0.9.19-0ubuntu4                          PulseAudio client libraries (glib support)
ii  libpulse0                                      1:0.9.19-0ubuntu4                          PulseAudio client libraries
rc  libsdl1.2debian-alsa                           1.2.13-4ubuntu4                            Simple DirectMedia Layer (with X11 and ALSA 
ii  libsdl1.2debian-pulseaudio                     1.2.13-4ubuntu4                            Simple DirectMedia Layer (with X11 and Pulse
ii  libsox-fmt-alsa                                14.3.0-1build1                             SoX alsa format I/O library
ii  libsox-fmt-pulse                               14.3.0-1build1                             SoX PulseAudio format I/O library
rc  linux-backports-modules-alsa-2.6.31-17-generic 2.6.31-17.19                               Ubuntu supplied Linux modules for version 2.
ii  pulseaudio                                     1:0.9.19-0ubuntu4                          PulseAudio sound server
ii  pulseaudio-esound-compat                       1:0.9.19-0ubuntu4                          PulseAudio ESD compatibility layer
ii  pulseaudio-module-bluetooth                    1:0.9.19-0ubuntu4                          Bluetooth module for PulseAudio sound server
ii  pulseaudio-module-gconf                        1:0.9.19-0ubuntu4                          GConf module for PulseAudio sound server
ii  pulseaudio-module-udev                         1:0.9.19-0ubuntu4                          udev device detection module for PulseAudio 
ii  pulseaudio-module-x11                          1:0.9.19-0ubuntu4                          X11 module for PulseAudio sound server
ii  pulseaudio-module-zeroconf                     1:0.9.19-0ubuntu4                          Zeroconf module for PulseAudio sound server
ii  pulseaudio-utils                               1:0.9.19-0ubuntu4                          Command line tools for the PulseAudio sound 
ii  vlc-plugin-pulse                               1.0.2-1ubuntu2.1                           PulseAudio plugin for VLC