X-Recipient:	archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status:	No, hits=-1.2 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,TW_TV
X-Spam-Check-By:	sourceware.org
MIME-Version:	1.0
In-Reply-To:	<AANLkTik_jo0N1YtUTFLzsqAsv5OkkyjCG9epeMq55bWk@mail.gmail.com>
References:	<AANLkTik_jo0N1YtUTFLzsqAsv5OkkyjCG9epeMq55bWk AT mail DOT gmail DOT com>
Date:	Fri, 14 May 2010 12:35:25 +0800
Message-ID:	<AANLkTilNwIZmrLN2cbv99GptZ-xC-LzHMI1_ZXwRAzqE@mail.gmail.com>
Subject:	Re: vfork always fail problem
From:	Huang Bambo <bambo DOT huang AT gmail DOT com>
To:	The Cygwin Mailing List <cygwin AT cygwin DOT com>
X-IsSubscribed:	yes
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Unsubscribe:	<mailto:cygwin-unsubscribe-archive-cygwin=delorie DOT com AT cygwin DOT com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com

Finally I test and get another result.
I run the test program at
/home/Bambo/test/t1/
but /home/Bambo/test is a symbolic link to another directory.
Maybe it's the problem that the system handle symbolic

2010/5/14 Huang Bambo <bambo DOT huang AT gmail DOT com>:
> [Bambo AT bambo-notebook 4.4.4]$ cat tvfork.c
> #include <sys/types.h>
> #include <unistd.h>
> #include <stdio.h>
>
> int main(void)
> {
> =A0 =A0 =A0 =A0pid_t pid =3D vfork();
> =A0 =A0 =A0 =A0if ( pid > 0 )
> =A0 =A0 =A0 =A0{
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0printf("I'm chield.\n");
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0_exit(0);
> =A0 =A0 =A0 =A0}
> =A0 =A0 =A0 =A0else if ( pid =3D=3D 0 )
> =A0 =A0 =A0 =A0{
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0printf("I'm parent");
> =A0 =A0 =A0 =A0}
> =A0 =A0 =A0 =A0else
> =A0 =A0 =A0 =A0{
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0perror("vfork failed.");
> =A0 =A0 =A0 =A0}
> }
> [Bambo AT bambo-notebook 4.4.4]$ make tvfork
> cc =A0 =A0 tvfork.c =A0 -o tvfork
> [Bambo AT bambo-notebook 4.4.4]$ ./tvfork.exe
> =A0 =A0 =A04 [main] tvfork 4136 fork: child -1 - CreateProcessW failed, e=
rrno 2
> vfork failed.: No such file or directory
> [Bambo AT bambo-notebook 4.4.4]$ ./tvfork
> =A0 =A0 =A03 [main] tvfork 2956 fork: child -1 - CreateProcessW failed, e=
rrno 2
> vfork failed.: No such file or directory
>
> I think maybe the wrong parameters were sent while calling CreateProcessW.
>

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

- Raw text -