From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Fri, 28 Dec 2012 05:27:27 +0100 (CET) Received: from qmta07.westchester.pa.mail.comcast.net ([76.96.62.64]:47933 "EHLO qmta07.westchester.pa.mail.comcast.net" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S6816831Ab2L1E10E447z (ORCPT ); Fri, 28 Dec 2012 05:27:26 +0100 Received: from omta02.westchester.pa.mail.comcast.net ([76.96.62.19]) by qmta07.westchester.pa.mail.comcast.net with comcast id gsNt1k0010QuhwU57sTK3s; Fri, 28 Dec 2012 04:27:19 +0000 Received: from [192.168.1.13] ([76.106.69.86]) by omta02.westchester.pa.mail.comcast.net with comcast id gsTJ1k0061rgsis3NsTJ9P; Fri, 28 Dec 2012 04:27:19 +0000 Message-ID: <50DD1FB9.6060707@gentoo.org> Date: Thu, 27 Dec 2012 23:27:37 -0500 From: Joshua Kinard User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/17.0 Thunderbird/17.0 MIME-Version: 1.0 To: Linux MIPS List Subject: Unhandled kernel unaligned access on IP32 w/ network I/O && 3.7.1? X-Enigmail-Version: 1.4.6 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig0DC42BBD64501981ABFAD84C" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20121106; t=1356668839; bh=4WLtE5N8es9AanQXS8O4lKUnhTeUmL8F84qzKesj4rE=; h=Received:Received:Message-ID:Date:From:MIME-Version:To:Subject: Content-Type; b=oL+SSjkJIyUrKqeMuA+7WyEbIuAMdssB10M1vGhhEcwVVOLZ3MpczPCGyXfuNuuUE 22eHp0qIydufxYzLqofBHXqvxsX7djVlU4kKWLOmN3mwk4Txo3tFb2bOcC8fj1FWmv Q11c1Cft7KJy9NGbN+lpGt/rlmwLH/phi8kZdCp9s2XQ/uuZ1XYA5Cb5daB60XxeN2 SouYw7mjZdqHhBdVzfCCUNqdhKiLkKHpvvtzIdQXe3UFfAXZA/KXQ8N62kgrI6ZtAf Stv/bOfu4e2A80DZnx+Rn8Uiz5jXZPrpNJ5I4S2GLV2RIi929/A5Fuqs46EVlogQbJ ZggROUoAnOJKg== X-archive-position: 35343 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: kumba@gentoo.org Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips Return-Path: This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig0DC42BBD64501981ABFAD84C Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Has anyone run into an unhandled kernel unaligned access under 3.7.1? I'= ve triggered it twice w/ network I/O on an SGI IP32 machine, however, the st= ack trace does not appear to be specific to any of IP32's own drivers. 3.6.7= was very stable, and the two oopses I've triggered so far both happened under 3.7.1. It looks like the culprit is in sk_stream_alloc_skb or tcp_sendmsg, howev= er, I have little experience in the higher-level networking stack within Linu= x and wanted to see if anyone else has triggered this on other MIPS systems= =2E Seems to happen when I am logged in via SSH (on IPv6) and generating a bu= rst of console output. Unhandled kernel unaligned access[#3]: Cpu 0 $ 0 : 0000000000000000 0000000000000010 0000000000000000 bfffff00567127= 1c $ 4 : 0000000000000000 0000000000000000 0000000000000000 00000000000000= 00 $ 8 : 980000005c24e000 0000000000000000 980000005c24e000 00000000000000= cc $12 : ffffffff9001fce1 000000001000001e fffffffffffff000 00000000000000= 1f $16 : 980000005c00fa40 ffffffffde0300b8 ffffff0000000000 00000000000000= 05 $20 : 000000007f875700 00000000000005a8 0000000000000008 00000000000000= 05 $24 : 0000000000000001 00000000000003f0 $28 : 980000005c00c000 980000005c00fa10 0000000000000000 ffffffff800059= a0 Hi : 0000000007a11c93 Lo : b645a1cac992645e epc : ffffffff8000b700 do_ade+0x1b0/0x480 Tainted: G D ra : ffffffff800059a0 ret_from_exception+0x0/0x24 Status: 9001fce3 KX SX UX KERNEL EXL IE Cause : 00000010 BadVA : bfffff005671271c PrId : 00002733 (RM7000) Process rsync (pid: 3844, threadinfo=3D980000005c00c000, task=3D980000005fada000, tls=3D0000000077dc9490) Stack : 980000005c24e6a0 9800000056712664 980000005c228000 00000000000005= a8 0000000000000005 ffffffff800059a0 0000000000000000 00000000000000= 10 00000000000000d0 0000000000000000 980000005c228000 00000000000008= a0 0000000000000000 0000000000000000 980000005c24e000 00000000000000= 00 980000005c24e000 00000000000000cc 0000000000000020 ffffffff80223b= 6c fffffffffffff000 000000000000001f 9800000056712664 980000005c2280= 00 00000000000005a8 0000000000000005 000000007f875700 00000000000005= a8 0000000000000008 0000000000000005 0000000000000001 00000000000003= f0 0000000000000014 ffffffff802de0d0 980000005c00c000 980000005c00fb= 70 0000000000000000 ffffffff80334ef8 ffffffff9001fce3 0000000007a11c= 93 ... Call Trace: [] do_ade+0x1b0/0x480 [] ret_from_exception+0x0/0x24 [] sk_stream_alloc_skb+0x6c/0x118 [] tcp_sendmsg+0x6fc/0xe90 [] sock_aio_write+0x10c/0x150 [] do_sync_write+0x9c/0x108 [] vfs_write+0x168/0x180 [] SyS_write+0x54/0xb8 [] handle_sys+0x118/0x13c Code: 00441024 5440ffe6 de030100 <68730000> 6c730007 24030000 1460004= 0 00000000 8e020124 ---[ end trace e5d137adb9de32d0 ]--- --=20 Joshua Kinard Gentoo/MIPS kumba@gentoo.org 4096R/D25D95E3 2011-03-28 "The past tempts us, the present confuses us, the future frightens us. A= nd our lives slip away, moment by moment, lost in that vast, terrible in-bet= ween." --Emperor Turhan, Centauri Republic --------------enig0DC42BBD64501981ABFAD84C Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (MingW32) iQIcBAEBAgAGBQJQ3R+5AAoJENsjoH7SXZXj/0IQAJCHFyrh2GZzuMDZ7FWs0PIS zWncJKpm/5pepgi9StGt8s9RtCl2+kbR+t5Uj/ig0Sn+KEhyF+qxAgjnAh7wGBub fuRKEsKSePBOXD/brteXuxXGbedpYDtcbniEzL/Xsur/laSblq/xC92j+R4GVvNh tdZPmOQFyxvVYuRuwatnCdaslxNl1gj83lYR018xP1JRY/GhwS8baIkFoI95pvAQ VdRSG/y1qKIVjdBP045iDNHw5DI4YW1T0UXdwo52gh/OSQRQ98cfL0OKOTV0fmyY LDOiUGE8lBO+ImrQmK2fQf1005pFalHe8n27N3IXHiRY37gHFrWF740vrrSvYDBD pjMP8H5zzhScwUXu+FxZtjhzTxwVh1QFAQBWX50WEpoHENCwrwbrmx6EPwZwZ/H5 jNJAMCSzgRXjcqvCG5BUb7AwRs/U+oaiuIqDg+3Z7GW4KFC/9CYeOSS2sOSP/2M6 Upgu/b2Hakg+CDnQOrsbif97o2jZ+RsFj9ysOKwxuaxcJhE1NOswXghudAdKBRsB 634LnvjjbAzD9k+goqjqix1Kjc3ueBqJbbu9klfHs+Kv98ytuKarEUTMjtto6flN 4Ac1jf44+OX9lBx0tSeCXialTh1jBLgBEjgnj+Hh3Qe0RI+mjLQGefmqFHbjthot 9w0+4UbGCxvvpsj5YY2M =gc2T -----END PGP SIGNATURE----- --------------enig0DC42BBD64501981ABFAD84C--