On Jul 8, 2004, at 8:09 AM, Xavier Leroy wrote:

>> I'm seeing some confusing behavior on OS X (10.3.4) relating to
>> pthreads and the execv family of calls.  It appears that when the
>> scheduler thread (from otherlibs/systhreads/thread_posix.ml) is
>> running, any call to execv will fail with "Operation not supported."
>> The same applies to execvp, execve, and execvpe.
>>
>> If I build the program without linking to threads.cmxa then it works 
>> as
>> expected.
>> Is this expected behavior?
>
> No.  According to POSIX, exec* has no reason to fail if other threads
> are still running in the current process.  These other threads are
> terminated.  With system threads, Caml's Unix.exec* functions just
> call the corresponding system calls.
>
> If you want to make sure, you could try to reproduce this behavior
> with a small C program.

Thanks.  I was able to reproduce it with a C program so I'll file a bug 
report with Apple.

Cheers,
-Nathan

--
 >>>-- Nathaniel Gray -- Caltech Computer Science ------>
 >>>-- Mojave Project -- http://mojave.cs.caltech.edu -->

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