LibreOffice embeds FireBird, telling it to use a subdirectory of the LibreOffice tempdir for the firebird lockdir.
At process shutdown, ~Cleanup from file init.cpp is called, which calls this stack:
However, the LibreOffice temporary directory, which is the parent of the firebird lockdir, has been deleted by then, which causes the mkdir() to fail, throwing an exception that eventually causes (in development build) firebird to call abort().
So we changed LibreOffice to call fb_shutdown(0, 1) when it does not need firebird anymore, expecting that then ~Cleanup would not be called, or become a noop or ... We checked that fb_shutdown is actually called, and returns success. However, ~Cleanup still tries to do work, for that to create a lockdir, which fails and abort().
Please make fb_shutdown() make all the cleanups so that nothing is done at process exit() time anymore.