Your message dated Sat, 6 Dec 2025 11:41:45 +0100
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has caused the Debian Bug report #1082748,
regarding Segmentation fault when using dragonfly-reverb-lv2 with lv2file
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1082748: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1082748
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: dragonfly-reverb-lv2
Version: 3.2.8-1
When using lv2file to apply the dragonfly-reverb-lv2 plugin's hall
reverb to a file, lv2file crashes with a segmentation fault. A gdb
backtrace shows that the crash happens inside the plugin, so I'm
reporting the bug against the dragonfly-reverb-lv2 package.
Some plugins can be used without a crash (for example,
urn:dragonfly:early doesn't crash, but urn:dragonfly:plate and
urn:dragonfly:room both crash with similar backtraces to the one given
below).
Example:
# Create an input file. Details aren't important
$ sox -n -c 2 -b 16 -r 44100 input.wav synth 1 sine
# Apply the plugin to the input file
$ lv2file -i input.wav -o output.wav
https://github.com/michaelwillis/dragonfly-reverb
Note: Running 1 instances of the plugin.
Note: Mapping audio channels to plugin ports based on ordering
Segmentation fault
Same example with gbd backtrace, using symbols from lv2file-dbgsym and
dragonfly-reverb-lv2-dbgsym:
(gdb) run
Starting program: /usr/bin/lv2file -i input.wav -o output.wav
https://github.com/michaelwillis/dragonfly-reverb
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Note: Running 1 instances of the plugin.
Note: Mapping audio channels to plugin ports based on ordering
Program received signal SIGSEGV, Segmentation fault.
__strcmp_avx2 () at ../sysdeps/x86_64/multiarch/strcmp-avx2.S:283
283 ../sysdeps/x86_64/multiarch/strcmp-avx2.S: No such file or directory.
(gdb) bt
#0 __strcmp_avx2 () at ../sysdeps/x86_64/multiarch/strcmp-avx2.S:283
#1 0x00007ffff797a74f in DISTRHO::lv2_instantiate (sampleRate=44100,
bundlePath=0x555555622390 "/usr/lib/lv2/DragonflyHallReverb.lv2/",
features=<optimized out>)
at ../../dpf/distrho/src/DistrhoPluginLV2.cpp:1415
#2 0x00007ffff7f05f93 in lilv_plugin_instantiate () from
/lib/x86_64-linux-gnu/liblilv-0.so.0
#3 0x0000555555557c23 in main (argc=<optimized out>, argv=<optimized
out>) at ./lv2file.c:785
(gdb)
Thanks for maintaining this package!
Cheers,
Michael
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