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[Colin Watson <cjwatson@xxxxxxxxxxxxx>]

I'm told this is fixed in Ubuntu 18.10 (via the split-out upstream
package csladspa 6.11.1).  I'm reasonably sure that cherry-picking
https://github.com/csound/csladspa/commit/ecc7f131c5530ad517254dd5b24ba9b2742f69ab
will do the job here.

** Information type changed from Private to Public

** Package changed: ardour (Ubuntu) => csound (Ubuntu)

** Also affects: csound (Ubuntu Bionic)
   Importance: Undecided
       Status: New

** Changed in: csound (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1759665

Title:
  ardour-5.12.0 assert failure: double free or corruption (out)

Status in csound package in Ubuntu:
  Fix Released
Status in csound source package in Bionic:
  New

Bug description:
  After installing the Cadence program from KXStudio, Ardour presented
  this crash.

  ProblemType: Crash
  DistroRelease: Ubuntu 18.04
  Package: ardour 1:5.12.0-3
  ProcVersionSignature: Ubuntu 4.15.0-13.14-lowlatency 4.15.10
  Uname: Linux 4.15.0-13-lowlatency x86_64
  ApportVersion: 2.20.9-0ubuntu1
  Architecture: amd64
  AssertionMessage: double free or corruption (out)
  CrashCounter: 1
  CurrentDesktop: XFCE
  Date: Wed Mar 28 16:41:23 2018
  ExecutablePath: /usr/lib/ardour5/ardour-5.12.0
  InstallationDate: Installed on 2018-03-17 (11 days ago)
  InstallationMedia: Ubuntu-Studio 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180316)
  ProcCmdline: /usr/lib/ardour5/ardour-5.12.0
  Signal: 6
  SourcePackage: ardour
  StacktraceTop:
   __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7f34f0b36b9a "%s\n") at ../sysdeps/posix/libc_fatal.c:181
   malloc_printerr (str=str@entry=0x7f34f0b38870 "double free or corruption (out)") at malloc.c:5350
   _int_free (have_lock=0, p=0x7ffd6c78cb90, av=0x7f34f0d6bc40 <main_arena>) at malloc.c:4278
   __GI___libc_free (mem=0x7ffd6c78cba0) at malloc.c:3124
   () at /usr/lib/ladspa/csladspa.so
  Title: ardour-5.12.0 assert failure: double free or corruption (out)
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm audio cdrom dip lpadmin plugdev sambashare sudo

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