From owner-freebsd-hackers@FreeBSD.ORG  Wed Jul  4 17:14:07 2012
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id C9B3C106566C
	for <freebsd-hackers@freebsd.org>; Wed,  4 Jul 2012 17:14:07 +0000 (UTC)
	(envelope-from freebsd-listen@fabiankeil.de)
Received: from smtprelay02.ispgateway.de (smtprelay02.ispgateway.de
	[80.67.31.36]) by mx1.freebsd.org (Postfix) with ESMTP id 830648FC08
	for <freebsd-hackers@freebsd.org>; Wed,  4 Jul 2012 17:14:07 +0000 (UTC)
Received: from [78.35.128.44] (helo=fabiankeil.de)
	by smtprelay02.ispgateway.de with esmtpsa (TLSv1:AES128-SHA:128)
	(Exim 4.68) (envelope-from <freebsd-listen@fabiankeil.de>)
	id 1SmT3j-0006Lc-NZ; Wed, 04 Jul 2012 19:08:11 +0200
Date: Wed, 4 Jul 2012 19:07:59 +0200
From: Fabian Keil <freebsd-listen@fabiankeil.de>
To: Chema =?ISO-8859-1?Q?Garc=EDa?= <chema@safetybits.net>
Message-ID: <20120704190759.461015c1@fabiankeil.de>
In-Reply-To: <4FF4307E.1030202@safetybits.net>
References: <4FF4307E.1030202@safetybits.net>
Mime-Version: 1.0
Content-Type: multipart/signed; micalg=PGP-SHA1;
	boundary="Sig_/xV2pqKoNfJdf3borTiwjwQX";
	protocol="application/pgp-signature"
X-Df-Sender: Nzc1MDY3
Cc: freebsd-hackers@freebsd.org
Subject: Re: DTrace issue (infinite loop)
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
Reply-To: freebsd-hackers@freebsd.org
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, 
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 04 Jul 2012 17:14:07 -0000

--Sig_/xV2pqKoNfJdf3borTiwjwQX
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

Chema Garc=EDa <chema@safetybits.net> wrote:

> I've been trying to compile Python 2.7 with dtrace support from
> https://hg.jcea.es/cpython-2011/ (branch dtrace-issue13405_2.7 ) to test
> http://bugs.python.org/issue13405#msg164610.
>=20
> I've also recompiled the kernel to enable dtrace support by following
> http://www.freebsd.org/doc/en/books/handbook/dtrace-enable.html , but
> dtrace enters into an infinite loop when compiling, and using 100% of
> CPU usage.
>=20
> I'm using FreeBSD 9.0-RELEASE-p3, and used:
>=20
> ./configure --with-dtrace && make
>=20
> And the issue occurs at:
>=20
> gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall
> -Wstrict-prototypes  -I. -IInclude -I./Include  -DPy_BUILD_CORE -o
> Include/pydtrace_offsets  Include/pydtrace_offsets.c
> Include/pydtrace_offsets.sh OTHER  Python/ceval.o
> Include/pydtrace_offsets >  Include/pydtrace_offsets.h
> if test "dtrace" !=3D "" ; then  dtrace -o Python/pydtrace.o
> -DPYDTRACE_STACK_HELPER  -I. -IInclude -I./Include -32  -C -G -s
> Include/pydtrace.d  Python/ceval.o Modules/gcmodule.o=20
> Objects/classobject.o Objects/typeobject.o;  else    touch
> Python/pydtrace.o ;  fi;
>=20
> I've tried removing '-DPYDTRACE_STACK_HELPER' with same results.

Does it make a difference if you remove the -O3 (and maybe -O2)?

Fabian

--Sig_/xV2pqKoNfJdf3borTiwjwQX
Content-Type: application/pgp-signature; name=signature.asc
Content-Disposition: attachment; filename=signature.asc

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (FreeBSD)

iEYEARECAAYFAk/0eHMACgkQBYqIVf93VJ1hkgCgq29f62zbDEilH3I1j/fu8T+p
tC4An3koZSal5FU9NHlQ19XHHTLr/fJk
=u1Cl
-----END PGP SIGNATURE-----

--Sig_/xV2pqKoNfJdf3borTiwjwQX--