> Did you get a backtrace of ‘preconv’ showing that the segfault is in
> libpipeline?

I'm not sure what you mean.  preconv is only run from libpipeline, and according
to the debug output and the error message above, preconv segfaults.

I'll try to run a GDB session on it later.

-- 
Pierre Neidhardt
https://ambrevar.xyz/