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juce-framework / JUCE

JUCE is an open-source cross-platform C++ application framework for desktop and mobile applications, including VST, VST3, AU, AUv3, LV2 and AAX audio plug-ins.
https://juce.com
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[Bug]: LV2 plug-ins on macOS crashes DAW when removing with open editor #1174

Closed fholzm closed 1 year ago

fholzm commented 1 year ago

Detailed steps on how to reproduce the bug

When trying to remove a LV2 plug-in in Reaper on macOS (Intel and ARM), the DAW crashes due to a segfault. This occurs only if the editor is open, it doesn't crash if the editor is closed or the whole track is being removed. This behavior can be observed with different plug-ins (I've tested it with the IEM Plug-in Suite on v7.0.3 and the empty pamplejuce template on v7.0.2 and the latest JUCE commit on the develop branch). It happens during or shortly after LV2_SYMBOL_EXPORT const LV2_Descriptor* lv2_descriptor (uint32_t index) is called in juce_LV2_Client.cpp.

What is the expected behaviour?

Removing the plug-in without a crash

Operating systems

macOS

What versions of the operating systems?

13.0.1 (M1 Pro) 12.6.2 (Intel)

Architectures

Other

Stacktrace

No response

Plug-in formats (if applicable)

LV2

Plug-in host applications (DAWs) (if applicable)

Reaper

Testing on the develop branch

The bug is present on the develop branch

Code of Conduct

reuk commented 1 year ago

I've debugged this a bit. At the moment, it's unclear whether the problem is in JUCE or in REAPER.

I've submitted an issue on the REAPER forum. Hopefully someone with access to the REAPER source will be able to provide a few more details.

https://forum.cockos.com/showthread.php?p=2630874#post2630874

fholzm commented 1 year ago

The issue seems to be fixed with the REAPER 0106 development build, so I'll close this issue

reuk commented 1 year ago

I can confirm that the issue seems to be resolved in 6.73+dev0109