gdbdbg will gather some general debugging information as well as the stack traces from each thread.
gdbdbg-info <pid>gdbdbg-inject can be used to inject some python code into the running process.
If you have manhole installed you can write a script like this:
import manhole
manhole.install()And inject it with gdbdbg-inject:
gdbdbg-inject <pid> manhole.py