[R-SIG-Mac] Forking issues in Mavericks

[Simon Zehnder]

Still,

I do not get any error with package parallel in my Mavericks. I compiled though R with a gcc 4.8.2. 

 
On 30 Oct 2013, at 18:26, Jeroen Ooms <jeroen.ooms at stat.ucla.edu> wrote:

> On Wed, Oct 30, 2013 at 10:08 AM, Simon Urbanek
> <simon.urbanek at r-project.org> wrote:
>> I didn't have time to look (will do later today), but a wild guess is that Apple was moving away from some common libraries like OpenSSL and replacing them with their own which could be CF-based and thus unsafe. Again, that's wild guess, I'll have to look at the trace to confirm that.
> 
> Thanks. It's unfortunate though, these developments are limiting the
> usefulness of the parallel package on the mac, because a lot of basic
> functionality is now considered "unsafe" to use in a forked process,
> even though on Linux there is no problem at all. I also don't get why
> osx decides to kill both the parent and child process when the child
> attempt to do something unsafe. That doesn't seem the most graceful
> way of dealing with things.
> 
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