From owner-freebsd-current@freebsd.org Tue Aug 22 12:30:11 2017 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5C5E6DE7DB2 for ; Tue, 22 Aug 2017 12:30:11 +0000 (UTC) (envelope-from david@catwhisker.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 4360A83F0D for ; Tue, 22 Aug 2017 12:30:11 +0000 (UTC) (envelope-from david@catwhisker.org) Received: by mailman.ysv.freebsd.org (Postfix) id 428CADE7DB1; Tue, 22 Aug 2017 12:30:11 +0000 (UTC) Delivered-To: current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 420A8DE7DB0 for ; Tue, 22 Aug 2017 12:30:11 +0000 (UTC) (envelope-from david@catwhisker.org) Received: from mx.catwhisker.org (mx.catwhisker.org [198.144.209.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 03D7F83F0C; Tue, 22 Aug 2017 12:30:10 +0000 (UTC) (envelope-from david@catwhisker.org) Received: from albert.catwhisker.org (localhost [127.0.0.1]) by albert.catwhisker.org (8.15.2/8.15.2) with ESMTP id v7MCU9nc030869; Tue, 22 Aug 2017 12:30:09 GMT (envelope-from david@albert.catwhisker.org) Received: (from david@localhost) by albert.catwhisker.org (8.15.2/8.15.2/Submit) id v7MCU9E5030868; Tue, 22 Aug 2017 05:30:09 -0700 (PDT) (envelope-from david) Date: Tue, 22 Aug 2017 05:30:09 -0700 From: David Wolfskill To: Ed Maste Cc: "current@freebsd.org" Subject: Re: SIGSEGV in /bin/sh after r322740 -> r322776 update Message-ID: <20170822123009.GI1130@albert.catwhisker.org> Mail-Followup-To: David Wolfskill , Ed Maste , "current@freebsd.org" References: <20170822114627.GC1130@albert.catwhisker.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="q4EqwgQSYGfzam5l" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.8.3 (2017-05-23) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Aug 2017 12:30:11 -0000 --q4EqwgQSYGfzam5l Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Aug 22, 2017 at 08:15:56AM -0400, Ed Maste wrote: > On 22 August 2017 at 07:46, David Wolfskill wrote: > > > > lldb's notion of the backtrace was fairly non-useful: > > g1-252(11.1-S)[7] lldb -c sh.core >=20 > Try: > % lldb /bin/sh -c sh.core freebeast(12.0-C)[12] lldb /bin/sh -c sh.core (lldb) target create "/bin/sh" --core "sh.core" Core file '/usr/obj/usr/src/sh.core' (x86_64) was loaded. (ldb) bt * thread #1, name =3D 'sh', stop reason =3D signal SIGSEGV * frame #0: 0x0000000800b6ee08 libc.so.7`___lldb_unnamed_symbol899$$libc.= so.7 + 72 frame #1: 0x0000000800b6eda1 libc.so.7`__malloc + 129 frame #2: 0x00000000004116cd sh`___lldb_unnamed_symbol142$$sh + 77 frame #3: 0x000000000041193f sh`___lldb_unnamed_symbol148$$sh + 111 frame #4: 0x0000000000407751 sh`___lldb_unnamed_symbol52$$sh + 129 frame #5: 0x00000000004074ef sh`___lldb_unnamed_symbol50$$sh + 63 frame #6: 0x000000000040fb50 sh`___lldb_unnamed_symbol119$$sh + 416 frame #7: 0x0000000000406892 sh`___lldb_unnamed_symbol38$$sh + 3266 frame #8: 0x00000000004054aa sh`___lldb_unnamed_symbol35$$sh + 714 frame #9: 0x0000000000405704 sh`___lldb_unnamed_symbol35$$sh + 1316 frame #10: 0x000000000040515b sh`___lldb_unnamed_symbol34$$sh + 171 frame #11: 0x00000000004111ae sh`___lldb_unnamed_symbol132$$sh + 558 frame #12: 0x0000000000402ecf sh`___lldb_unnamed_symbol1$$sh + 383 (lldb)=20 Well, that's more than we had before -- thanks! Peace, david --=20 David H. Wolfskill david@catwhisker.org If we wish to eliminate sources of Fake News, start at the top: D. Trump. See http://www.catwhisker.org/~david/publickey.gpg for my public key. --q4EqwgQSYGfzam5l Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQF8BAEBCgBmBQJZnCPRXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRDQ0I3Q0VGOTE3QTgwMUY0MzA2NEQ3N0Ix NTM5Q0M0MEEwNDlFRTE3AAoJEBU5zECgSe4XGwQIAIorbIF36SLj/zUaACcaQDZC flREhN+YI6VnJt5mtsq1z/suiBb7lFzhU4xdrZWj9ObuWqg+ig1XhEvR5wdAP6O3 rhy5/rKh+Pj+MN1dQjxlVQ1/EDihWb6CqCCwcasVI3cQeDNTiCD0sxaoJ7P11zyB ZSA+pep/OtEu69hlGcquK1SSRwf9um+2e9PLnkQG1+Wcyi7SPqmqmW93Hsl87A2n gpmgLrv/JyuBnm8MGEYVmF2+rvhsoGZNIooZpShsAOggJ1hfUMXPUVtu+x8CR5BP PJI07uKY+o5b+tK5N5zHo9ozzC5AEXws+lnH1lNXiuT3coa7ZkPEkGsYXwZ3LbU= =2VSw -----END PGP SIGNATURE----- --q4EqwgQSYGfzam5l--