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[Launchpad Bug Tracker <1562817@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/1562817

Title:
  pulseaudio crashed with SIGABRT in pa_alsa_path_set_volume() from
  source_write_volume_cb() from source_set_port_cb() from
  pa_source_process_msg() from source_process_msg()

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

Bug description:
  https://errors.ubuntu.com/problem/3bb5044276ea358334e8e662559a1cbd45240cd9

  ---

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

  [Test Case]
  Theoretical test case (crash does not happen for all users):
  1. Find some headphones and/or microphone. Ensure you do not wear the
     headphones during the test as it may be loud.
  2. Set audio output/input volumes to maximum.
  3. Unplug and replug the headphones/microphone.
  4. 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]

  This error is there when i get back to the computer after a while of
  no use, and at login after restart. haven't seen this error while the
  system is "active"/in use.

  I have been unable to provoke the error to come.

  I'm not sure it is related, but when i plug in a headset, the audio volume goes through the roof, and a loud (painfully so) scratching sound is coming from the headset until i press Vol+. Vol- does nothing till i have pressed up at least once.
  But the bug report thing does not pop up when the sound issue is there.

  Description:	Ubuntu Xenial Xerus (development branch)
  Release:	16.04

  pulseaudio:
    Installed: 1:8.0-0ubuntu2
    Candidate: 1:8.0-0ubuntu2
    Version table:
   *** 1:8.0-0ubuntu2 500
          500 http://dk.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Crash
  DistroRelease: Ubuntu 16.04
  Package: pulseaudio 1:8.0-0ubuntu2
  ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6
  Uname: Linux 4.4.0-15-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  tbs       22776 F.... pulseaudio
  CrashCounter: 1
  CurrentDesktop: Unity
  Date: Mon Mar 28 12:39:45 2016
  ExecutablePath: /usr/bin/pulseaudio
  InstallationDate: Installed on 2016-01-14 (73 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  ProcCmdline: /usr/bin/pulseaudio --start --log-target=syslog
  Signal: 6
  SourcePackage: pulseaudio
  StacktraceTop:
   pa_alsa_path_set_volume () from /usr/lib/pulse-8.0/modules/libalsa-util.so
   ?? () from /usr/lib/pulse-8.0/modules/libalsa-util.so
   ?? () from /usr/lib/pulse-8.0/modules/libalsa-util.so
   pa_source_process_msg () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecore-8.0.so
   ?? () from /usr/lib/pulse-8.0/modules/libalsa-util.so
  Title: pulseaudio crashed with SIGABRT in pa_alsa_path_set_volume()
  UpgradeStatus: Upgraded to xenial on 2016-03-19 (8 days ago)
  UserGroups: adm cdrom dialout dip lp lpadmin plugdev root sambashare sudo vboxusers
  dmi.bios.date: 09/18/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G5ETA3WW (2.63 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 244743G
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG5ETA3WW(2.63):bd09/18/2015:svnLENOVO:pn244743G:pvrThinkPadW530:rvnLENOVO:rn244743G:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 244743G
  dmi.product.version: ThinkPad W530
  dmi.sys.vendor: LENOVO

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