[Bug 1009080] [NEW] pulse audio plugin seg fault on 64 bit 12.04

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Public bug reported:

To reproduce:

1. Execute Scratch using current VM and pulse plugin (on Ubuntu 12.04, 64 bit system): 
Executing: /usr/lib/squeak/4.4.7-2357/squeakvm -encoding UTF-8 -vm-display-x11 -xshm -plugins /usr/lib/scratch/plugins/:/usr/lib/squeak/4.4.7-2357/ -vm-sound-pulse /usr/share/scratch/Scratch.image 
(There is no pulse plugin in /usr/lib/scratch/plugins in my installation package, so it must be using the one in /usr/lib/squeak/4.4.7-2357)

2. Click "Sounds" tab, click play icon next to meow. That results in:

Segmentation fault

10273532 [] in SoundPlayer class>playLoop
10262332 Semaphore>critical:
10262240 SoundPlayer class>playLoop
10273228 [] in SoundPlayer class>startPlayerProcessBufferSize:rate:stereo:
10273320 [] in BlockContext>newProcess
Aborted (core dumped)

Note that the installation of the same package on 32 bit systems does
not produce the error (playback and recording both work).

** Affects: squeak-vm (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1009080

Title:
  pulse audio plugin seg fault on 64 bit 12.04

Status in “squeak-vm” package in Ubuntu:
  New

Bug description:
  To reproduce:

  1. Execute Scratch using current VM and pulse plugin (on Ubuntu 12.04, 64 bit system): 
  Executing: /usr/lib/squeak/4.4.7-2357/squeakvm -encoding UTF-8 -vm-display-x11 -xshm -plugins /usr/lib/scratch/plugins/:/usr/lib/squeak/4.4.7-2357/ -vm-sound-pulse /usr/share/scratch/Scratch.image 
  (There is no pulse plugin in /usr/lib/scratch/plugins in my installation package, so it must be using the one in /usr/lib/squeak/4.4.7-2357)

  2. Click "Sounds" tab, click play icon next to meow. That results in:

  Segmentation fault

  10273532 [] in SoundPlayer class>playLoop
  10262332 Semaphore>critical:
  10262240 SoundPlayer class>playLoop
  10273228 [] in SoundPlayer class>startPlayerProcessBufferSize:rate:stereo:
  10273320 [] in BlockContext>newProcess
  Aborted (core dumped)

  Note that the installation of the same package on 32 bit systems does
  not produce the error (playback and recording both work).

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