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[Launchpad Bug Tracker <1690028@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package pulseaudio - 1:8.0-0ubuntu3.4

---------------
pulseaudio (1:8.0-0ubuntu3.4) xenial; urgency=medium

  * debian/control: Update Vcs fields to launchpad git.
  * Cherrypick fixes for common crashes from upstream:
    - cb78d6f5: SIGABRT in device_start_waiting_for_profiles (LP: #1690028,
      LP: #1672171)
    - d985276c: SIGABRT in pa_alsa_path_set_volume (LP: #1539209, LP: #1562817)

 -- Daniel van Vugt <daniel.van.vugt@xxxxxxxxxxxxx>  Fri, 11 Aug 2017
15:16:57 +0800

** Changed in: pulseaudio (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1690028

Title:
  pulseaudio crashed with SIGABRT in device_start_waiting_for_profiles()
  from pa_bluetooth_transport_set_state() from
  endpoint_set_configuration() from endpoint_handler() from
  _dbus_object_tree_dispatch_and_unlock()

Status in PulseAudio:
  Fix Released
Status in pulseaudio package in Ubuntu:
  Fix Released
Status in pulseaudio source package in Xenial:
  Fix Released

Bug description:
  [Impact]
  pulseaudio daemon crashes, interrupting sound output/input.

  [Test Case]
  Theoretical test case (crash does not happen for all users):
  1. Get a Bluetooth audio device capable of multiple profiles (e.g. high 
     fidelity A2DP and the lower quality headset profiles).
  2. Pair it with your machine and select the device in sound settings.
  3. Turn the Bluetooth audio device off and on again, making sure it is 
     set to active if not automatically so.
  4. Select the device in sound settings.
  5. Check that that pulseaudio process is still running, with a start 
     time older than when you began this test case.

  [Regression Potential]
  Low. This SRU affects the pulseaudio daemon only so the worst case would 
  be loss of sound output/input. The same patches have been released to
  17.10 for a month already and zero regressions of the crashes have
  occurred worldwide since then.

  [Other Info]
  Debdiff patch is attached to the most prolific bug 1539209.

  [Original Description]

  The Ubuntu Error Tracker has been receiving reports about a problem regarding pulseaudio.  This problem was most recently seen with package version 1:10.0-1ubuntu2, the problem page at https://errors.ubuntu.com/problem/5a76b9eca937daf6dc05fd32a35fa50e58ccf8f5 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
  If you do not have access to the Ubuntu Error Tracker you can request it at http://forms.canonical.com/reports/.

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