X-Recipient:	archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status:	No, hits=-3.5 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_LOW,SPF_PASS
X-Spam-Check-By:	sourceware.org
Message-Id:	<1239247089.21610.1309702315@webmail.messagingengine.com>
From:	"Charles Wilson" <cygwin AT cwilson DOT fastmail DOT fm>
To:	"cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
MIME-Version:	1.0
Subject:	Re: [1.7] rebaseall doesn't solve the problem
Date:	Wed, 08 Apr 2009 23:18:09 -0400
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

Jonathan wrote:
> I've read the entire thread here
> http://cygwin.com/ml/cygwin/2009-02/msg00488.html and it seems to be the
> exact same problem I'm having.  Discussion seems to have stopped though,
> I didn't seem any emails on it for the last three weeks or so.  Is this
> fix or tool ready for end users, or testers?  I've seen this rebase
> issue on Vista with both Perl and Python.

rebase-3.0-2 was announced here:
http://cygwin.com/ml/cygwin/2009-04/msg00174.html
and it includes the new peflags tool and peflagsall script.

However...

I've found that setting the ASLR flag on the DLLs *helps* on Vista --
but doesn't always work.  Sometimes I'll still get the "fatal error -
unable to remap" issue. This usually happens when:

1) The computer has recently hibernated
2) And I'm doing a TON of perl stuff with lots of fork/execs (e.g.
autoreconf).

It usually fixes itself if you reboot.  This allows Vista to re-allocate
the random base addresses, AND actually obey them.  It's as if it
"forgets" about ASLR after hibernation.

--
Chuck

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

- Raw text -