sem(4) lockup in python?

[Daniel Eischen]

On Sun, 5 Feb 2012, Ivan Voras wrote:

> On 5 February 2012 11:44, Garrett Cooper <yanegomi at gmail.com> wrote:
>
>>
>>    'make MAKE_JOBS_NUMBER=1' is the workground used right now..
>
> David Xu suggested that it is a bug in Python - it doesn't set
> process-shared attribute when it calls sem_init(), but i've tried
> patching it (replacing the port patchfile file the one I've attached)
> and I still get the hang.

I don't understand how process shared semaphores can work.  Perhaps
I'm dumb and ignorant, but a sem_id_t is an allocated struct.   The
actual kernel sem_id is inside the struct.  Isn't this the same
reason pthread_mutex_t and pthread_cond_t cannot be process-shared?

-- 
DE