pulseaudio crashed with SIGSEGV in module_jack_sink_LTX_pa__init()

Binary package hint: pulseaudio

For some strange reason, I don't know why PulseAudio crashed when I open up ZynAddSubFX, but when I close it, start PulseAudio, and open ZynAddSubFX, it seems PulseAudio does not crash.

This is what I have for PulseAudio/JACK in /etc/pulse/jack.pa:

#!/usr/bin/pulseaudio -nF
#
load-module module-jack-sink
load-module module-jack-source

load-module module-native-protocol-unix
load-module module-volume-restore
load-module module-default-device-restore
load-module module-rescue-streams
load-module module-suspend-on-idle
.ifexists module-gconf.so
.nofail
load-module module-gconf
.fail
.endif
.ifexists module-x11-publish.so
.nofail
load-module module-x11-publish
.fail
.endif

This is how I setup my ALSA-PulseAudio bridge:

pcm.pulse
{
    type pulse
}
ctl.pulse
{
    type pulse
}
pcm.!default
{
    type pulse
}
ctl.!default
{
    type pulse
}

I will have to restart my netbook to see if the crash occurs again.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: pulseaudio 1:0.9.22+stable-queue-24-g67d18-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-6.34-generic 2.6.38-rc7
Uname: Linux 2.6.38-6-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
   Subdevices: 0/1
   Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
   Subdevices: 0/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: grayson 7697 F.... jackd
 /dev/snd/pcmC0D0c: grayson 7697 F...m jackd
 /dev/snd/pcmC0D0p: grayson 7697 F...m jackd
 /dev/snd/seq: grayson 7621 F.... qjackctl
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0x58540000 irq 45'
   Mixer name : 'Realtek ALC268'
   Components : 'HDA:10ec0268,1025015b,00100101'
   Controls : 8
   Simple ctrls : 5
CrashCounter: 1
Date: Fri Mar 11 13:05:22 2011
ExecutablePath: /usr/bin/pulseaudio
ProcCmdline: pulseaudio -nF /etc/pulse/jack.pa
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_US.UTF-8
 LANGUAGE=en_US:en
SegvAnalysis:
 Segfault happened at: 0xc5ea4a <module_jack_sink_LTX_pa__init+474>: mov (%eax),%esi
 PC (0x00c5ea4a) ok
 source "(%eax)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%esi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: pulseaudio
StacktraceTop:
 module_jack_sink_LTX_pa__init () from /usr/lib/pulse-0.9.22/modules/module-jack-sink.so
 pa_module_load () from /usr/lib/libpulsecore-0.9.22.so
 ?? () from /usr/lib/libpulsecore-0.9.22.so
 pa_cli_command_execute_line_stateful () from /usr/lib/libpulsecore-0.9.22.so
 pa_cli_command_execute_file_stream () from /usr/lib/libpulsecore-0.9.22.so
Title: pulseaudio crashed with SIGSEGV in module_jack_sink_LTX_pa__init()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin audio cdrom dialout lpadmin plugdev sambashare
XsessionErrors: (nautilus:7602): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed
dmi.bios.date: 05/09/2008
dmi.bios.vendor: Acer
dmi.bios.version: v0.3305
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 1
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAcer:bvrv0.3305:bd05/09/2008:svnAcer:pnAOA150:pvr1:rvnAcer:rn:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion:
dmi.product.name: AOA150
dmi.product.version: 1
dmi.sys.vendor: Acer