posix_spawn

Wed Apr 23 02:46:16 GMT 2025

Hi Camm,
On 4/22/2025 12:31 PM, Camm Maguire via Cygwin-apps wrote:
> Greetings! posix_spawnp is returning 10, or ECHILD, on the following
> call. At least on my first reading (:-)), ECHILD is not one of the
> documented errors for fork, vfork, or clone referenced by the Linux
> manpage for posix_spawnp. Suggestions?
>> Take care,
>> =============================================================================
>> massert(!posix_spawn_file_actions_init(&file_actions));
> massert(!posix_spawnattr_init(&attr));
>> printf("spawn 2 %s\n",*p1);
> for (pp=p1;pp<pe && *pp;pp++)
> printf("spawn 2a %s\n",*pp);
> for (pp=(void *)environ;*pp;pp++)
> printf("spawn 2e %s\n",*pp);
>> s=posix_spawnp(&pid, *p1, &file_actions, &attr, (void *)p1, environ);
> printf("spawn %d\n",s);fflush(stdout);
>> =============================================================================

Hmm, that's interesting. Could you please post what we call an "STC", a 
Simple Test Case. Something in C that demonstrates the problem and is 
completely self-contained, along with how to run it? We don't want to 
be assuming things that are not shown in the code excerpt above.
Thanks,
..mark