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From: "Alexander V. Tischenko" <flash@ax.ru>
To: <hackers@FreeBSD.ORG>
Subject: Re: Recursive fork() and different fbsd's
Date: Wed, 1 Oct 1997 14:16:10 +0400
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I tried a bit modified sample and got right into resource limit.
Don't know how you can count proc's with your source.

Alexander V. Tischenko
----------
> From: Eugeny Kuzakov <Eugeny.Kuzakov@lab321.ru>
> To: hackers@FreeBSD.ORG
> Subject: Recursive fork() and different fbsd's
> Date: 29 сентября 1997 г. 10:39
> 
> Hi, All !
> 
> 
> I run this program on:
> 
> 1. 3.0-970807-SNAP - no hangs, fork always rerurns 0. But process count
> does not grow..
> 2. 2.1.7.1-RELEASE - more swap, more processes, not hangs really, but
> ....Works only
> 	router...Any applications stoped...
> 
> On linux, when will process count more than same constant, fork returns
> -1.
> 
> Any comments ?
> 
> -- 
> 	Best wishes, Eugeny Kuzakov
> 		Laboratory 321 ( Omsk, Russia )
> 		http://www.lab321.ru/~kev
> 		kev@lab321.ru
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#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <unistd.h>
#include <signal.h>

int main ()
{
	pid_t pid;
	register int count = 0;

	while (1) {
		if ((pid = fork()) == (pid_t)-1) {
			printf("\nCollected: %d boys, return is %d\n",
				count, errno);
			fflush(stdout);
			signal(SIGINT, SIG_IGN);
			killpg(0, SIGINT);
			exit(0);
		}

		if (pid == 0) {
			/* Do nothing loop! */
			while (1)
				pause();
		} else {
			printf(".");
			count++;
		}
	}
}

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