From owner-freebsd-arm@freebsd.org Thu Nov 5 15:34:29 2015 Return-Path: Delivered-To: freebsd-arm@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 99D41A276D7 for ; Thu, 5 Nov 2015 15:34:29 +0000 (UTC) (envelope-from lars@e-new.0x20.net) 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 7B5F71CE1 for ; Thu, 5 Nov 2015 15:34:29 +0000 (UTC) (envelope-from lars@e-new.0x20.net) Received: by mailman.ysv.freebsd.org (Postfix) id 78AE6A276D6; Thu, 5 Nov 2015 15:34:29 +0000 (UTC) Delivered-To: arm@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 5F877A276D5 for ; Thu, 5 Nov 2015 15:34:29 +0000 (UTC) (envelope-from lars@e-new.0x20.net) Received: from mail.0x20.net (mail.0x20.net [217.69.76.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mail.0x20.net", Issuer "mail.0x20.net" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 0B2CE1CE0 for ; Thu, 5 Nov 2015 15:34:28 +0000 (UTC) (envelope-from lars@e-new.0x20.net) Received: from e-new.0x20.net (mail.0x20.net [IPv6:2001:aa8:fffb:1::3]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mail.0x20.net (Postfix) with ESMTPS id 3414B6E005D; Thu, 5 Nov 2015 16:34:25 +0100 (CET) Received: from e-new.0x20.net (localhost [127.0.0.1]) by e-new.0x20.net (8.14.7/8.14.7) with ESMTP id tA5FYO57083420; Thu, 5 Nov 2015 16:34:24 +0100 (CET) (envelope-from lars@e-new.0x20.net) Received: (from lars@localhost) by e-new.0x20.net (8.14.7/8.14.7/Submit) id tA5FYOxa083221; Thu, 5 Nov 2015 16:34:24 +0100 (CET) (envelope-from lars) Date: Thu, 5 Nov 2015 16:34:24 +0100 From: Lars Engels To: Hans Petter Selasky Cc: arm@freebsd.org Subject: Re: [Banana Pi] Fatal kernel mode data abort: 'Alignment Fault' on read Message-ID: <20151105153423.GS66179@e-new.0x20.net> References: <20151105104859.GQ66179@e-new.0x20.net> <563B372E.20607@selasky.org> <20151105120950.GR66179@e-new.0x20.net> <563B4813.1060403@selasky.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="pFwAERqMlXzMQ5I7" Content-Disposition: inline In-Reply-To: <563B4813.1060403@selasky.org> X-Editor: VIM - Vi IMproved 7.4 X-Operation-System: FreeBSD 8.4-RELEASE-p23 User-Agent: Mutt/1.5.23 (2014-03-12) X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Nov 2015 15:34:29 -0000 --pFwAERqMlXzMQ5I7 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Nov 05, 2015 at 01:14:11PM +0100, Hans Petter Selasky wrote: > On 11/05/15 13:09, Lars Engels wrote: > > On Thu, Nov 05, 2015 at 12:02:06PM +0100, Hans Petter Selasky wrote: > >> On 11/05/15 11:48, Lars Engels wrote: > >>> Using FreeBSD-armv6-11.0-A20-290366.img I can reproducible crash the > >>> kernel by USB-tethering the Banana Pi to a mobile phone and run " > >>> pkg bootstrap". It looks like this: > >>> > >>> root@bananapi:/ # pkg bootstrap > >>> The package management tool is not yet installed on your system. > >>> Do you want to fetch and install it now? [y/N]: y > >>> Bootstrapping pkg from pkg+http://pkg.FreeBSD.org/FreeBSD:11:armv6/la= test, please wait... > >>> Fatal kernel mode data abort: 'Alignment Fault' on read > >>> trapframe: 0xea576a90 > >>> FSR=3D00000001, FAR=3Dc43a1d6e, spsr=3D60000113 > >>> r0 =3D00000014, r1 =3D0000003c, r2 =3D0000003c, r3 =3D00000903 > >>> r4 =3D00000000, r5 =3Dc43a1d6a, r6 =3D00000028, r7 =3Dc43a1d56 > >>> r8 =3D00000000, r9 =3D00000014, r10=3D00000028, r11=3Dea576bf8 > >>> r12=3D00000000, ssp=3Dea576b20, slr=3Dc061aba4, pc =3Dc04f68e8 > >>> > >>> [ thread pid 13 tid 100024 ] > >>> Stopped at tcp_input+0x820: ldr r0, [r5, #0x004] > >> > >> Hi, > >> > >> Could you "objdump -Dx --source /boot/kernel/kernel" and figure out > >> which code line "tcp_input+0x820" corresponds to? > > > > You mean like "objdump ... | grep -C10 tcp_input+0x820"? > > > > I started that half an hour ago and it's still not finished. > > >=20 > No, you need to find where tcp_input starts, by less-ing it, then add=20 > 0x820 to that address and then verify that the assembly instruction=20 > there matches. Ok, I have no idea what I am doing, but here's what I did: # objdump -Dx --source /boot/kernel/kernel --start-address=3D"0xc04f51c8" = --stop-address=3D"0xC04F59E8" The result is a 1,3MB text file at: http://bsd-geek.de/FreeBSD/objdump.txt Can you see anything there? --pFwAERqMlXzMQ5I7 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQF8BAEBCgBmBQJWO3b/XxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQ4RjQwMDE3RTRERjUzMTI1N0FGRTUxNDlF NTRDQjM3RDNBMDg5RDZEAAoJEOVMs306CJ1tCZIIAJdiBAUzptMnspXPhPcgkUJh 9bJaWbk+u1vQutzvSiWhGJLY6uklCTMlytFll9A5XBNeDoM85/PbtY5xEJr19vC9 CtmP4whftSE3SRpv5eEgFk9I8BwRSwpxbutUYC5q4+0df9j+U8qhJI4rJvkGND9O YeCe4zaBg+zWJzSru8GBQf6w+1X7ElQTU7sFeFoArNrp4Bp03mi8nbdio3sxxPH3 7MlX8eEwWewTuh3mJ5tb2ieSc96Rl+q5J7ZIE2oVpMXMFaWOg2kDrMfT6Rj+BmKz sZcjxkjiG6LAYuD2huHdqs4d9aS1mPDWzEUzCCBs0HcUEXwf0GJn+2VjSJoKnRM= =hes5 -----END PGP SIGNATURE----- --pFwAERqMlXzMQ5I7--