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Date: Sun, 4 Feb 2001 05:29:43 -0500
From: Jason Tishler <Jason DOT Tishler AT dothill DOT com>
To: cygwin AT sources DOT redhat DOT com
Cc: Yutaka tanida <yutaka AT hi-net DOT zaq DOT ne DOT jp>,
        Hork Daniel <horak AT sit DOT plzen-city DOT cz>
Subject: Re: PostgreSQL 7.1 Beta 3 does not run under Cygwin 1.1.8
Message-ID: <20010204052943.A1772@dothill.com>
Mail-Followup-To: cygwin AT sources DOT redhat DOT com,
	Yutaka tanida <yutaka AT hi-net DOT zaq DOT ne DOT jp>,
	Hork Daniel <horak AT sit DOT plzen-city DOT cz>
References: <200102010245 DOT f112jHt05966 AT rtl DOT cygnus DOT com> <20010201112937 DOT A1368 AT dothill DOT com> <20010201174647 DOT D19867 AT cygbert DOT vinschen DOT de>
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In-Reply-To: <20010201174647.D19867@cygbert.vinschen.de>; from cygwin@cygwin.com on Thu, Feb 01, 2001 at 05:46:47PM +0100
Organization: Dot Hill Systems Corp.

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Corinna,

On Thu, Feb 01, 2001 at 05:46:47PM +0100, Corinna Vinschen wrote:
> On Thu, Feb 01, 2001 at 11:29:37AM -0500, Jason Tishler wrote:
> > On Wed, Jan 31, 2001 at 09:45:17PM -0500, Christopher Faylor wrote:
> > > - Improve anonymous mmap.
> > 
> > Unfortunately, I think that the above change is preventing PostgreSQL
> > from running under Cygwin 1.1.8.  When I start postmaster, I get the
> > following error:
> > 
> >       0 [main] postmaster 1580 fixup_mmaps_after_fork: base address fails to match requested address 0x7030000
> > C:\cygwin\usr\local\pgsql\bin\postgres.exe: *** recreate_mmaps_after_fork_failed
> > Startup failed - abort
> > 
> > Any ideas?
> 
> Could you send me a simple test case?

Please see attached for two test cases, courtesy of Yutaka tanida, that
reproduce this problem without PostgreSQL involved.  Actually,
mmaptest2.c further isolates the problem down to mmap()/fork() by
removing cygipc from the equation.

Thanks,
Jason

-- 
Jason Tishler
Director, Software Engineering       Phone: +1 (732) 264-8770 x235
Dot Hill Systems Corp.               Fax:   +1 (732) 264-8798
82 Bethany Road, Suite 7             Email: Jason DOT Tishler AT dothill DOT com
Hazlet, NJ 07730 USA                 WWW:   http://www.dothill.com

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Date: Sun, 04 Feb 2001 11:03:47 +0900
From: Yutaka tanida <yutaka AT hi-net DOT zaq DOT ne DOT jp>
To: Jason Tishler <Jason DOT Tishler AT dothill DOT com>
Subject: Re: PostgreSQL 7.1 Beta 3 does not run under Cygwin 1.1.8
Cc: Hork Daniel <horak AT sit DOT plzen-city DOT cz>
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Jason,

On Sat, 3 Feb 2001 11:23:41 -0500
Jason Tishler <Jason DOT Tishler AT dothill DOT com> wrote:

> Please excuse the direct mail but I am having problems posting to
> pgsql-ports.  Marc Fournier is working with me to try to fix the posting
> problem.  When it rains it pours...
> 
> Please see the attached.  PostgreSQL 7.1 Beta 3 does not run under Cygwin
> 1.1.8.  I believe that it has to due with a cygipc/fork() problem under
> Cygwin 1.1.8.  Please see the following for more details:
> 
>     http://cygwin.com/ml/cygwin/2001-02/msg00098.html

Hmm ... it seems to be terrible.

I create a program to re-produce this probrem . I think it's a bug of
fork().


---
Yutaka tanida<yutaka AT hi-net DOT zaq DOT ne DOT jp>

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