Date: Wed, 8 Jan 2014 22:49:08 -0800 From: Justin Hibbits <jrh29@alumni.cwru.edu> To: Harry Weppner <harry.weppner@gmx.net> Cc: ruby@freebsd.org, FreeBSD PowerPC ML <freebsd-ppc@freebsd.org> Subject: Re: miniruby segfaults when attempting to install lang/ruby19 or lang/ruby20 on ppc64 Message-ID: <CAHSQbTA8A7rgP87zq=V3mnP=kqnUUzOynb_kk9Kp1pH=Tegiog@mail.gmail.com> In-Reply-To: <1AAB79D6-9BDF-446A-8150-C9290FB341A7@gmx.net> References: <1AAB79D6-9BDF-446A-8150-C9290FB341A7@gmx.net>
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Thu, 9 Jan 2014 07:45:39 +0000 (UTC) Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 8C1A616BE; Thu, 9 Jan 2014 07:45:38 +0000 (UTC) Received: from tom.home (kostik@localhost [127.0.0.1]) by kib.kiev.ua (8.14.7/8.14.7) with ESMTP id s097jSr6096471; Thu, 9 Jan 2014 09:45:28 +0200 (EET) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.8.3 kib.kiev.ua s097jSr6096471 Received: (from kostik@localhost) by tom.home (8.14.7/8.14.7/Submit) id s097jS5J096470; Thu, 9 Jan 2014 09:45:28 +0200 (EET) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Thu, 9 Jan 2014 09:45:28 +0200 From: Konstantin Belousov <kostikbel@gmail.com> To: Harry Weppner <harry.weppner@gmx.net> Subject: Re: miniruby segfaults when attempting to install lang/ruby19 or lang/ruby20 on ppc64 Message-ID: <20140109074528.GX59496@kib.kiev.ua> References: <1AAB79D6-9BDF-446A-8150-C9290FB341A7@gmx.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="4wFg4YZ8kmw0QCNv" Content-Disposition: inline In-Reply-To: <1AAB79D6-9BDF-446A-8150-C9290FB341A7@gmx.net> User-Agent: Mutt/1.5.22 (2013-10-16) X-Spam-Status: No, score=-2.0 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED autolearn=no version=3.3.2 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on tom.home Cc: ruby@freebsd.org, freebsd-ppc@freebsd.org X-BeenThere: freebsd-ruby@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: FreeBSD-specific Ruby discussions <freebsd-ruby.freebsd.org> List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-ruby>, <mailto:freebsd-ruby-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-ruby/>; List-Post: <mailto:freebsd-ruby@freebsd.org> List-Help: <mailto:freebsd-ruby-request@freebsd.org?subject=help> List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-ruby>, <mailto:freebsd-ruby-request@freebsd.org?subject=subscribe> X-List-Received-Date: Thu, 09 Jan 2014 07:45:39 -0000 --4wFg4YZ8kmw0QCNv Content-Type: text/plain; charset=koi8-r Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jan 08, 2014 at 09:47:14PM -0800, Harry Weppner wrote: > Hi, >=20 > I brought an older dual G5 Powermac back to life and installed FreeBSD 10= =2E0-RC4 on it with a GENERIC ppc64 kernel. When installing lang/ruby19 or = lang/ruby20 miniruby segfaults in libthr. Tested with both the default gcc4= 2 as well as with gcc49. >=20 > Has anyone seen this issue before? T >=20 > Thanks & cheerio, Harry. >=20 > (gdb) bt > #0 handle_signal (actp=3D0xffffffffffbfa130, sig=3D11, info=3D0xffffffff= ffbfa690, ucp=3D0xffffffffffbfa1d0) > at /usr/src/lib/libthr/thread/thr_sig.c:188 This is strange, where the instuction address for the frame #0 ? > #1 0x00000000502f36ac in thr_sighandler (sig=3D11, info=3D0xffffffffffbf= a690, _ucp=3D0xffffffffffbfa1d0) > at /usr/src/lib/libthr/thread/thr_sig.c:183 > #2 0xffffffffffffe188 in ?? () >=20 > =82=80=80/usr/src/lib/libthr/thread/thr_sig.c=80=80=80=80=80=80=80=80= =80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80= =80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80= =80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=83 > =81184 } = =81 > =81185 = =81 > =81186 static void = =81 > =81187 handle_signal(struct sigaction *actp, int sig, siginfo_t *i= nfo, ucontext_t *ucp) =81 > >=81188 { = =81 > =81189 struct pthread *curthread =3D _get_curthread(); = =81 >=20 >=20 > The specific instruction is: > =82=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80= =80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80= =80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80= =80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80=80= =80=80=80=80=80=80=80=80=80=80=80=80=80=80=83 > >=810x502f32ac <handle_signal+64> stdu r1,-1392(r1) = =81 > =810x502f32b0 <handle_signal+68> ld r0,0(r9) = =81 > =810x502f32b4 <handle_signal+72> cmpdi cr7,r0,0 = =81 >=20 > (gdb) x/x $r1-1392 > 0xffffffffffbf9b50: Cannot access memory at address 0xffffffffffbf9b50 >=20 Note that the fault happens during the delivery of SIGSEGV, and assuming that it was stdu instruction indeed, it sounds as if the stack overflow happens, probably due to excessive recursion. Is the backtrace you copied above the full backtrace ? I would expect much more frames above signal trampoline in the frame #2. It seems that gdb for rs6000 does not know about signal trampolines. --4wFg4YZ8kmw0QCNv Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (FreeBSD) iQIcBAEBAgAGBQJSzlOXAAoJEJDCuSvBvK1B2JMQAJpBRry6HnWZrOKZDScGst4O Jq5QO0r7ucObhWnGA1EfZG1swm5K4mk/ZFyenbalN+4mPiggFl4TfQ5gIlf0PeX1 UAyym6Zr8KMctvUkkli0D9aBOeRGL7vOu9zb+ZEcbaPWhHMz+1Jzxr/hoorzh6bv BR5AmLnHbgye7fCHocFRjx+HZc2tsB4XQ3XytVy8ii2CfjKmrogBbHYGmdt/TC4c LF8HbwO9wBDnwYq1pRKmh07goT1Tu/NO0E2hBMH/36JOrMchnqrigqVWTSk9bxV5 Jztaj32Zo3Vg6kPt/zABJvNqjIpsfmXaUiSxcI5zI0bzqYIu19oBDOTg6ZCQPaVA pisvmk7Lo+6Pkq+ddFVarrHlAtWpd+gVvDZVHK5AtQUQHoqUCGFWy1JSqLgAoCqu mmo1JIjKjS57Gt/41AgSdXIS/Df7e2bD069gmIhrrfZX3HXrnByM+PZbBro9vMsq ZsX60iQFfS/yDREGthqJERcU6J03llGyGiYP7C2yWyilQ3fMmtiubIRDGW1F2goj IlU9zMJ3wTnUjRWdGZMhTRIoFJ0pyQ8JdgfxDihUmZkRu4JGkDa4wIhNBu5aang+ sx0kv3C24jydi+UOxOcsM5xr623nt4Xbv5D7b1RYs2Onc9+k2jzzWa44hstgZnWO gc/ZzRp/+VQN50BRZ17Z =8LH6 -----END PGP SIGNATURE----- --4wFg4YZ8kmw0QCNv--
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