mamba binary segmentation fault

[maccagnan]

Hello,
I tried mamba binary today on Devuan Daedalus.
I installed libsmf0 (1.3-4) and ran the binary. Got this error message:
Segmentation fault
Without any further indication.
Any suggestions as to how troubleshoot this issue?

[brummer10]

Best solution would be to build it from source. I mean even when we try to debug this segmentation fault, I guess we end up in a scenario were we recognise that the binary is un-compatible with your distribution. It may be related to the fluidsynth version used to build the binary, or, any other lib.
Building from source isn't that hard when you follow the instructions from the project page. I'm here, if you've any question on that.

[maccagnan]

Thanks for the prompt reply.
I'm using Debian Trixie and Fluidsynth verison is 2.3.4-1.
I tried building from source, but get the error:
$pwd
/home/test/Downloads/Mamba-master/Mamba-master
$git submodule init
fatal: not a git repository (or any of the parent directories): .git

or if I try from with the src directory I get:
make
/bin/sh: 1: Building object file build/MidiKeyBoard.o : not found
make: *** [Makefile:155: build/MidiKeyBoard.o] Error 127

[brummer10]

You must download the source with
git clone https://github.com/brummer10/Mamba.git
don't use the zip provided by github, that one wouldn't work (it's a ever lasting issue on github for projects using submodules)
after clone go to the top directory
cd Mamba
then follow the instrutions on the project page

git submodule init
git submodule update
make

you could try out Mamba (when it builds successful) as well without install it, by

./src/build/mamba

If you like it you could install it with
sudo make install
and get your menu entry for it.

[maccagnan]

I built it and got the same error.

here is the build output

https://codeshare.io/MkjqbQ

[brummer10]

Do you've jackd up and running?

[maccagnan]

Yes, jack is running, same as fluidsynth.

[brummer10]

Strange. I've no idea why it crash for you. Only way to get a hint would be to run a debug build in gdb.
If you've some time and interest to solve this issue, please build a debug version and run it in gdb.
In case you don't have installed gdb you could install it with apt install gdb

make clean
make debug
gdb  ./src/build/mamba

then, when it crash type
bt full
post the result please at pastebin

[maccagnan]

It is odd, I'm using debian stable and testing, not any exotic linux distro. Snd the build went fine, no issues. I'll try the debug process when I got time and post the result.

[brummer10]

Yes, really odd, as I'm using debian as well, unstable/testing here. So our systems wont be much different at all.

[maccagnan]

Okay, I erased everything and started from scratch on Debian stable, reinstalled all the dependencies and recompiled, and now it works. It might be that I missed something, although I couldn't tell what.

[brummer10]

Strange. However, nice to hear it works now.
Hope it will be useful for you as well.

[maccagnan]

Thanks for the assistance and for developing this neat software.