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IDCategoryLast Update
0008127bugs2020-05-19 20:23
ReportergonsoloAssigned Topaul 
Status resolvedResolutionno change required 
PlatformDell LatitudeOSUbuntu Focal lowlatencyOS Version20.04
Product Version5.12 
Fixed in Version 
Summary0008127: Crash at the end of loop
DescriptionI'm trying to a bassoon from Virtual Playing Orchestra via an sfz file using self-compiled sfizz (commit 8a43a9fa873c190afdb0ae7ed05f38c8dd181a27).
It works great until I try looping. After setting a loop region and pressing L Ardour crashes reliably at the end of the loop.
Steps To Reproduce1. Download VPO from
2. Clone sfizz from
3. Compile sfizz & move the resulting sfizz.lv2 to ~
4. Open Ardour, scan for plugins, at a midi track add some notes, add sfizz in the mixer, use bassoon from vpo.
5. Playing works fine, looping crashes.
Additional InformationThis is Ubuntu Focal with a lowlatency kernel from
TagsNo tags attached.



2020-05-19 10:38

reporter   ~0024201

I also reported an issue in sfizz:


2020-05-19 15:24

reporter   ~0024205

It was an assert in sfizz. See the issue above. I guess Ardour can't do anything about dynamic libraries.

Issue History

Date Modified Username Field Change
2020-05-19 10:34 gonsolo New Issue
2020-05-19 10:38 gonsolo Note Added: 0024201
2020-05-19 15:24 gonsolo Note Added: 0024205
2020-05-19 20:23 paul Assigned To => paul
2020-05-19 20:23 paul Status new => resolved
2020-05-19 20:23 paul Resolution open => no change required