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[Erich Eickmeyer <1877806@xxxxxxxxxxxxxxxxxx>]

This appears to be a bug in lilv. Per
https://github.com/lv2/lilv/issues/32, this is fixed in the version of
lilv in Groovy Gorilla (future 20.10) and we'll have to do a Stable
Release Update to get this fixed in Ubuntu 20.04.

** Changed in: ardour (Ubuntu)
       Status: Confirmed => Triaged

** Also affects: lilv (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: ardour (Ubuntu Groovy)
   Importance: Medium
       Status: Triaged

** Also affects: lilv (Ubuntu Groovy)
   Importance: Undecided
       Status: New

** Also affects: ardour (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Also affects: lilv (Ubuntu Focal)
   Importance: Undecided
       Status: New

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

** Changed in: lilv (Ubuntu Focal)
       Status: New => Confirmed

** Changed in: ardour (Ubuntu Focal)
       Status: New => Triaged

** Changed in: ardour (Ubuntu Groovy)
   Importance: Medium => Undecided

** Changed in: lilv (Ubuntu Focal)
   Importance: Undecided => High

** Bug watch added: github.com/lv2/lilv/issues #32
   https://github.com/lv2/lilv/issues/32

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https://bugs.launchpad.net/bugs/1877806

Title:
  ardour crashes when saving lv2 plugin preset

Status in ardour package in Ubuntu:
  Triaged
Status in lilv package in Ubuntu:
  Fix Released
Status in ardour source package in Focal:
  Triaged
Status in lilv source package in Focal:
  Confirmed
Status in ardour source package in Groovy:
  Triaged
Status in lilv source package in Groovy:
  Fix Released

Bug description:
  The few lv2 plugins I have tried all crash ardour when I click on
  "save" to save the preset. Clicking Add to create a new plugin doesn't
  crash, but it also does not save the preset.  If you load a plugin
  preset already created and then click save, you end up wiping out the
  contents of the preset direcoty in ~/.lv2.  The .ttl files are deleted
  and you end up with an empty directoy.  The only thing printed on the
  console when this happens is this:

  
  CALF DEBUG: instance 0x55c00d102860 data 0x55c01ca1cf10
  CALF DEBUG: calf 0x7f8d31f7b0f0 cpi 0x7f8d31783ca0
  Segmentation fault (core dumped)

  AFAIK, teh preset add and save functions work for ladspa plugins.

  -Don

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ardour 1:5.12.0-3ubuntu4
  ProcVersionSignature: Ubuntu 5.4.0-29.33-lowlatency 5.4.30
  Uname: Linux 5.4.0-29-lowlatency x86_64
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: XFCE
  Date: Sat May  9 21:39:09 2020
  InstallationDate: Installed on 2020-04-26 (13 days ago)
  InstallationMedia: Ubuntu-Studio 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  SourcePackage: ardour
  UpgradeStatus: No upgrade log present (probably fresh install)

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