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From:	"Hannu E K Nevalainen" <garbage_collector AT telia DOT com>
To:	<cygwin AT cygwin DOT com>
Subject:	RE: Minimal test case for Make crash bug
Date:	Sun, 21 Mar 2004 21:18:51 +0100
Message-ID:	<NGBBLLIAMFLGJEOAJCCEGEICDJAA.garbage_collector@telia.com>
MIME-Version:	1.0
In-Reply-To:	<405D1ACD.4060809@kegel.com>

> From: Dan Kegel

> Dan Kegel wrote:
> > Got it.  I'm attaching a minimal test case.  glibc's makefile
> > requires that Make be able to handle 140 levels of include recursion,
> > but cygwin Make crashes after about 130 -- unless you're running
> > under gdb or strace, in which case it works fine.
>
> Turns out the smallest test case is even smaller:
>
> #include <stdio.h>
> #include <fcntl.h>
> #include <stdlib.h>
>
> int main(int argc, char **argv)
> {
>          int i;
>          for (i=0; ; i++) {
>                  int fd = open("foo.c", O_RDONLY);
>                  printf("fd #%d is %d\n", i, fd);
>          }
> }
>
> This crashes for me at the 133rd fd unless I run it under
> gdb, in which case it runs quite happily forever without
> crashing (though it runs out of fds fairly soon).
> And this is a WinXP system with an up-to-date cygwin and
> scads of memory, not some Win95 box with 16MB...

FWIW; using the previously posted fds.c, slightly modified:
 I can reproduce this with 1.5.9-1 (ususally 133 iterations and a core
dump).
Switching to 1.5.8-1 cygwin1.dll rasies the limit to some 3200 iterations
(no dump).

/Hannu E K Nevalainen, B.Sc. EE - 59+16.37'N, 17+12.60'E

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