things get more tricky, because I can't use queues and pipes to
communicate with a running process that it's noit my child, correct?
Yes, I think that is correct.
I don't understand why detaching a child process on Linux/Unix would
make IPC stop working. Can somebody explain?
It is implemented with shared memory. I think (although I'm not 100%
sure) that shared memory is created *and freed up* (shm_unlink() system
call) by the parent process. It makes sense, because the child processes
will surely die with the parent. If you detach a child process, then it
won't be killed with its original parent. But the shared memory will be
freed by the original parent process anyway. I suspect that the child
that has mapped that shared memory segment will try to access a freed up
resource, do a segfault or something similar.
--
http://mail.python.org/mailman/listinfo/python-list
