From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Tue, 27 Nov 2007 17:25:18 +0000 (GMT) Received: from astra.telenet-ops.be ([195.130.132.58]:57283 "EHLO astra.telenet-ops.be") by ftp.linux-mips.org with ESMTP id S28574692AbXK0RZJ (ORCPT ); Tue, 27 Nov 2007 17:25:09 +0000 Received: from localhost (localhost.localdomain [127.0.0.1]) by astra.telenet-ops.be (Postfix) with SMTP id 24B1638168; Tue, 27 Nov 2007 18:25:09 +0100 (CET) Received: from anakin.of.borg (d54C15D55.access.telenet.be [84.193.93.85]) by astra.telenet-ops.be (Postfix) with ESMTP id 54C1038128; Tue, 27 Nov 2007 18:25:08 +0100 (CET) Received: from anakin.of.borg (localhost [127.0.0.1]) by anakin.of.borg (8.14.1/8.14.1/Debian-9) with ESMTP id lARHP8XK015373 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Tue, 27 Nov 2007 18:25:08 +0100 Received: from localhost (geert@localhost) by anakin.of.borg (8.14.1/8.14.1/Submit) with ESMTP id lARHP6k3015370; Tue, 27 Nov 2007 18:25:07 +0100 X-Authentication-Warning: anakin.of.borg: geert owned process doing -bs Date: Tue, 27 Nov 2007 18:25:06 +0100 (CET) From: Geert Uytterhoeven To: "Luis R. Rodriguez" Cc: loswillios , kyle@mcmartin.ca, linux-wireless@vger.kernel.org, developers@islsm.org, linux-mips@linux-mips.org Subject: Re: prism54 - MIPS do_be() trap caught In-Reply-To: <43e72e890711270917o309441a0g99ac435a629b6d5e@mail.gmail.com> Message-ID: References: <43e72e890711270917o309441a0g99ac435a629b6d5e@mail.gmail.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 17616 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: geert@linux-m68k.org Precedence: bulk X-list: linux-mips On Tue, 27 Nov 2007, Luis R. Rodriguez wrote: > Changing subject, CC'ing linux-mips, perhaps they can help. > > On Nov 26, 2007 7:54 PM, loswillios wrote: > > Jan Willies wrote: > > > Luis R. Rodriguez wrote: > > >> Actually I've been informed this is not unaligned access problem but > > >> instead it occurs on do_be() or ip22_be_interrupt() on MIPS. I'll have > > >> to check how that works, I do not yet understand how this is reached. > > > > > > I will try a new build with prism54 in the next days and let you know if > > > that issue is still present. > > > > Still the same problem with 2.6.23.1: > > > > root@OpenWrt:/# ifconfig eth1 up > > eth1: resetting device... > > eth1: uploading firmware... > > eth1: firmware version: 1.0.4.3 > > eth1: firmware upload complete > > eth1: interface reset complete > > > > root@OpenWrt:/# iwlist eth1 scanning > > Data bus error, epc == c011518c, ra == c01146cc > > Oops[#1]: > > Cpu 0 > > $ 0 : 00000000 1000b800 abad0000 00000032 > > $ 4 : 00000001 c00c8000 00000013 00000001 > > $ 8 : 0000003c 80102bd4 ffffffff 81e2101c > > $12 : ffffffff 00000580 2ab8af24 00000498 > > $16 : 81e21680 000000fa 81339380 0000004a > > $20 : 81339380 00000000 a1e80000 81339000 > > $24 : 00000000 2abd55e0 > > $28 : 813b4000 813b5cc8 00000019 c01146cc > > Hi : 00000000 > > Lo : 00000580 > > epc : c011518c Not tainted > > ra : c01146cc Status: 1000b803 KERNEL EXL IE > > Cause : 0000001c > > PrId : 00029007 > > I can see that this comes from arch/mips/kernel/traps.c do_be() but I > fail to see when this is triggered. Perhaps someone from linux-mips > might be able to help shed some light here. I tried looking into the > stack trace before but I couldn't find any code that made me suspect > of a possible big endian problem (it seems that may be the problem?). > The stack trace used to look like this: BE = bus error, not big endian here. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds