`my_init` crashes entire Mac OS 10.9.2 system

[pda]

Running my_init on Mac OS 10.9.2 crashes the entire system, dumping it to a blank grey screen and requiring a reboot.

Warning, by the nature of this issue, running the examples may crash your system.

This first happened when I invoked my_init from Mac OS to test exit status fixes for #45:

python my_init --skip-runit -- bash -c "exit 42"

A simpler and more universal test-case:

URL="https://raw.githubusercontent.com/phusion/baseimage-docker/master/image/my_init"
curl $URL | /usr/bin/python

I get the same crash with:

• System Python 2.7.5 at /usr/bin/python
• Homebrew Python 2.7.6 at /usr/local/bin/python

I realize Mac OS isn't the target system for this program, but it'd be nice to be able to test e.g. exit status bugs on any python-capable system, and the crash is very strange.

[pda]

Oh, right…

finally:
    if args.kill_all_on_exit:
        kill_all_processes(KILL_ALL_PROCESSES_TIMEOUT)

def kill_all_processes(time_limit):
    info("Killing all processes...")
    try:
        os.kill(-1, signal.SIGTERM)

That'd do it :)

It's possible that my_init should only kill its own child / descendant processes. But in the normal use-case, that's the entire system, so perhaps there's no need to add that complexity.

[FooBarWidget]

Yes. Don't run my_init except in a container. It's specifically designed for use in a Docker container.

[FooBarWidget]

I tend to test my_init like this:

docker run -t -i -v `pwd`/image:/image phusion/baseimage:xxx /image/my_init [...]

[pda]

Makes sense :)