X-Recipient:	archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status:	No, hits=-5.7 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,KHOP_RCVD_TRUST,KHOP_THREADED,RCVD_IN_DNSWL_LOW,RCVD_IN_HOSTKARMA_YE
X-Spam-Check-By:	sourceware.org
Message-ID:	<4FD06267.4040204@gmail.com>
Date:	Thu, 07 Jun 2012 10:12:23 +0200
From:	Noel Grandin <noelgrandin AT gmail DOT com>
User-Agent:	Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20120428 Thunderbird/12.0.1
MIME-Version:	1.0
To:	cygwin AT cygwin DOT com
Subject:	Re: Windows 8 Release Preview. fork problems with rsync
References:	<CAOLRrpGi-OaejySZ82AVDVzt01mPd0A6gWgjaN60W-sqHZG8cw AT mail DOT gmail DOT com> <20120606123434 DOT GA27662 AT calimero DOT vinschen DOT de> <CAOLRrpHQV2JcaK_f1UAEFR33ga=w8hqdNUSEqfZj1ygKXMCVoA AT mail DOT gmail DOT com> <20120606161217 DOT GB30795 AT calimero DOT vinschen DOT de> <CADSoG1tvx3dPMAZ8-CppoEemqU8ObDuj+4JySTGgSvK-LSYkUg AT mail DOT gmail DOT com> <20120606182929 DOT GD30795 AT calimero DOT vinschen DOT de>
In-Reply-To:	<20120606182929.GD30795@calimero.vinschen.de>
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.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

On 2012-06-06 20:29, Corinna Vinschen wrote:

> On Jun  6 17:59, Nick Lowe wrote:
>>> Thanks.  I can confirm the effect.  For no apparent reason, the OS
>>> reserves a 1 Megs shared memory region, top-down allocated, of which it
>>> uses about 20K.  It's not the PEB or one of the TEBs, though.  Nor is
>>> it a thread stack.  I checked, and it turns out that it's allocated
>>> in every process, on 32 and 64 bit systems.  That's kind of worrying
>>> since that's bound to collide with mmaped regions and pthread stacks a
>>> lot.  I don't know what to do at this point.
>



I assume you've seem the VMMap tool?
http://technet.microsoft.com/en-us/sysinternals/dd535533.aspx



--
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 -