** Description changed: [Impact] - * Users of Ardour who wish to use LV2 audio plugins and make settings - presets are running into an issue where they are unable to save changes - to their presets. Attempts simply crash the application. + * Users of Ardour who wish to use LV2 audio plugins and make settings + presets are running into an issue where they are unable to save changes + to their presets. Attempts simply crash the application. - * This has been only been observed in Ubuntu 20.04 LTS. Attempts to - reproduce the behavior on 18.04, 19.10, and Groovy Gorilla proved - fruitless. + * This has been only been observed in Ubuntu 20.04 LTS. Attempts to + reproduce the behavior on 18.04, 19.10, and Groovy Gorilla proved + fruitless. - * Upon investigation, the bug was a regression in lilv 0.24.6 which was - corrected in 0.24.8 per https://github.com/lv2/lilv/issues/32 and its - attached commit. + * Upon investigation, the bug was a regression in lilv 0.24.6 which was + corrected in 0.24.8 per https://github.com/lv2/lilv/issues/32 and its + attached commit. This commit, and commits from the same day, have been + cherry-picked into patches for this upload. This upload is versioned as + 0.14.6-1ubuntu0.1. [Test Case] - * In Ardour, start a new project, go to the Mixer view. + * In Ardour, start a new project, go to the Mixer view. - * Add a track to the project + * Add a track to the project - * Add any LV2 plugin to the track + * Add any LV2 plugin to the track - * Open the LV2 plugin interface via a double-click on the plugin + * Open the LV2 plugin interface via a double-click on the plugin - * Save a "New" preset, use any name. + * Save a "New" preset, use any name. - * Make a change to the plugin state (any parameter), click "Save". - Ardour will crash. + * Make a change to the plugin state (any parameter), click "Save". + Ardour will crash. [Regression Potential] - * This library (lilv) affects LV2 plugins and only LV2 plugins. Version - 0.24.8 contains a number of bugfixes to enhance the stability of LV2 - plugins, including the bugfix mentioned. + * This library (lilv) affects LV2 plugins and only LV2 plugins. Version + 0.24.8 contains a number of bugfixes to enhance the stability of LV2 + plugins, including the bugfix mentioned. Many of those bugfixes were + cherry-picked into patches. - * Even though this version contains a number of bug fixes, there is always - potential for some regression in LV2 plugins to occur, such as - misbehavior or other regressions similar to this particular bug. + * Even though these patches contain a number of bug fixes, there is always + potential for some regression in LV2 plugins to occur, such as + misbehavior or other regressions similar to this particular bug. [Other Info] - - * The diff in this case is quite large due to the number of bugs fixed. - While it is possible for a simple cherry pick of the commit in question, - I believe there is an even greater risk of regression or bugs appearing - if the full bugfix release is not used. - * The full bugfix release (0.24.8) fixes many bugs and does not contain - any new features as far as I can tell. + * The diff in this case may be quite large due to the number of bugs + fixed. + + * None of the included patches contain new features as far as I can + tell. - Original bug follows: + Original bug report follows: 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)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877806 Title: [SRU] ardour crashes when saving lv2 plugin preset - bug discovered in lilv To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ardour/+bug/1877806/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
