X-Recipient: archive-cygwin@delorie.com X-SWARE-Spam-Status: No, hits=-6.2 required=5.0 tests=AWL,BAYES_00,KHOP_PGP_SIGNED,KHOP_THREADED,SPF_HELO_PASS,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Message-ID: <4FFF9A81.90403@dancol.org> Date: Thu, 12 Jul 2012 20:48:17 -0700 From: Daniel Colascione User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:13.0) Gecko/20120614 Thunderbird/13.0.1 MIME-Version: 1.0 To: cygwin@cygwin.com Subject: Re: clisp crashes on startup References: <4FF76A98.2020309@dancol.org> <4FF833DC.8090908@gmail.com> <4FF83C71.5000803@dancol.org> <4FF8759A.10400@gmail.com> <4FF88907.5060100@dancol.org> <4FFB4C82.7050702@dancol.org> <4FFBB6B3.2090705@dancol.org> <20120710081318.GB3051@calimero.vinschen.de> <4FFC4D3C.2010004@dancol.org> In-Reply-To: <4FFC4D3C.2010004@dancol.org> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigEFDDE2A51EB66AB9AFDD766F" X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com --------------enigEFDDE2A51EB66AB9AFDD766F Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 7/10/12 8:41 AM, Daniel Colascione wrote: > On 7/10/12 1:13 AM, Corinna Vinschen wrote: >> On Jul 9 21:59, Daniel Colascione wrote: >>> On 7/9/12 2:26 PM, Daniel Colascione wrote: >>>> [snip] >>> >>> It turns out that clisp crashes only when I've rebased DLLs into the >>> high portion of the 4GB WOW64 address space. >> >> Where did you rebase them to? You know that on WOW64 and with the >> bigaddr flag on, the application heap is located at 0x80000000 by >> default, right? Perhaps some of your DLLs just collide with that? >=20 > I'm using a starting base address of 0xC8000000; I haven't had > problems with any other program. It turns out that clisp uses bit 31 of each pointer for its gc mark bit. No wonder the thing blows in bigaddr-aware mode. clisp _does_ work, however, when compiled with -DWIDE. In this mode, clisp uses two words for each lisp value --- one for the pointer and one for the metadata. Also, clisp has a LINUX_NOEXEC_HEAPCODES mode that also works, and without bloating memory use, but that requires that no real virtual address be in the range [0xC0000000, 0xDFFFFFFF]. --------------enigEFDDE2A51EB66AB9AFDD766F Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (Darwin) Comment: GPGTools - http://gpgtools.org iEYEARECAAYFAk//moYACgkQ17c2LVA10VuXegCdHXW9LMoE6CksWQbFrSZ1M7/K XxoAoLF8NfAYR4MkY45lQzwRcijhErcW =SMYw -----END PGP SIGNATURE----- --------------enigEFDDE2A51EB66AB9AFDD766F--