Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264565AbUAJEGf (ORCPT ); Fri, 9 Jan 2004 23:06:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264881AbUAJEGf (ORCPT ); Fri, 9 Jan 2004 23:06:35 -0500 Received: from dodge.jordet.nu ([217.13.8.142]:37585 "EHLO dodge.jordet.nu") by vger.kernel.org with ESMTP id S264565AbUAJEG0 (ORCPT ); Fri, 9 Jan 2004 23:06:26 -0500 Subject: Re: i2c_adapter i2c-0: Bus collision! From: Stian Jordet To: linux-kernel@vger.kernel.org, sensors@stimpy.netroedge.com In-Reply-To: <20040108230559.05a5674c.khali@linux-fr.org> References: <1073527236.624.7.camel@buick> <20040108230559.05a5674c.khali@linux-fr.org> Content-Type: multipart/mixed; boundary="=-xrZGmktWKvFnUazB2Duz" Message-Id: <1073707567.621.5.camel@buick> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 Date: Sat, 10 Jan 2004 05:06:07 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6584 Lines: 141 --=-xrZGmktWKvFnUazB2Duz Content-Type: text/plain Content-Transfer-Encoding: 7bit tor, 08.01.2004 kl. 23.05 skrev Jean Delvare: > > i2c_adapter i2c-0: Bus collision! SMBus may be locked until next hard > > reset. (sorry!) > > > > Kernel 2.6.0 with lm-sensors 2.8.2. > > Are you able to reproduce the same behavior with kernel 2.4.24 and > lm-sensors 2.8.2? Just tried, and I do. I forgot to mention it in my last mail, but I sometime has to reload the modules before "sensors" finds any sensor. > > I get very weird results, especially on the fan, but others as well. > > Here are three runs of sensors: > > (...) > > Could you provide a few outputs of "i2cdump 0 0x2d"? I wonder if this > will show read errors (as "XX") or simply changing values. Attached three runs. Seems to be some read errors :( On these three runs I got first three bus-collisions, then one, and last two. > Does your BIOS provide a feature such as "Circle Of Protection" or > anything that sounds like "active" hardware monitoring? Is it enabled? No such option. > If you have any other chips (eeproms for example) on the bus, do you > observe similar behavior with these? Not other chips. > > It works fine with MBM in Windows. Well, MBM is having some troubles > > with the temperature (it gets lower and lower as time pass, and ends > > on about 8-9 degrees celsius. But fan and temperatures are read just > > fine, never any glitch. On thing thing though, the Vcore2 is 1,70. The > > Bios reports it correctly, but both MBM and LM-sensors says 1,50. Have > > no idea why. The 1,50 is static, never changes, while VCore1 (which > > ideally should be 1,75) varies from 1,75 to 1,79. In the BIOS both > > seem sane, and varies with 3-4 degrees. > > > > I guess all these problems are because of the bus collision, which I > > have read usually happens because of bad boards. Which I admit that I > > do have, but it works in Windows :( > > Which motherboard is it? A Rioworks SDVIA (http://www.rioworks.com/SDVIA.htm) Not very new, I'm afraid. And not very good. > Did you have to enable any particular option in MBM? Nah, it just worked :) > > What are the most common reasons for the bus collisions (...)? > > Bad brakes? > > Just kidding... ;) Hehe :) I guess this is unsolvable, but I just wanted to hear what you say. Kinda weird it works so well with MBM, but that's ok. It's just for fun I want it to work. Thanks for your reply :) Best regards, Stian --=-xrZGmktWKvFnUazB2Duz Content-Disposition: attachment; filename=i2cdump.txt Content-Type: text/plain; name=i2cdump.txt; charset=iso-8859-1 Content-Transfer-Encoding: 7bit 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef 00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 20: 71 XX d1 bb bb 79 6e 7f d9 d4 ff ff 00 ff 00 ed qX???yn???.....? 30: b0 df ff fd be bf ff ff b9 XX ff 6f 77 ef XX 00 ??.???..?X.ow?X. 40: 01 00 10 00 00 00 00 56 XX 03 01 40 41 85 80 5c ?.?....VX??@A??\ 50: ff ff 00 ff ff ff 00 00 30 70 ff ff 19 0f ff ff ........0p..??.. 60: XX 5e d1 bb bb 77 6e 7f dd d7 ff ff XX ff 00 ed X^???wn???..X..? 70: b0 df ff fd be bf ff ff b9 fd ff 6f 77 ef 00 00 ??.???..??.ow?.. 80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ a0: 70 5e d1 bb bb 77 6c 7f dd d4 ff 00 00 ff 00 ed p^???wl???.....? b0: XX df ff fd be bf ff ff b9 fd ff 6f 77 ef 00 00 X?.???..??.ow?.. c0: 01 00 10 00 00 00 00 56 2d 03 01 40 41 85 80 5c ?.?....V-??@A??\ d0: ff ff 00 ff ff ff 00 XX 30 70 ff ff 19 0f ff ff .......X0p..??.. e0: 71 5e d1 b9 bb 78 6e XX XX d8 ff ff 00 ff XX ed q^???xnXX?....X? f0: b0 df ff fd be bf ff ff b9 fd ff 6f 77 XX 00 00 ??.???..??.owX.. 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef 00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 20: 71 XX d1 bb bb 79 6e 7f dd d9 ff ff 00 ff 00 db qX???yn???.....? 30: b0 df ff fd be bf ff ff b9 fd ff 6f 77 ef 00 00 ??.???..??.ow?.. 40: 01 00 10 00 00 00 00 56 2c 03 01 40 41 85 XX 5c ?.?....V,??@A?X\ 50: ff ff 00 ff ff ff 00 00 30 70 ff ff 19 0f ff ff ........0p..??.. 60: 70 5e d1 bb bb 7b 6c 7f dd d9 ff ff 00 ff 00 ed p^???{l???.....? 70: b0 df ff fd be XX ff ff b9 fd ff 6f 77 ef 00 00 ??.??X..??.ow?.. 80: ff ff ff ff ff ff ff ff ff ff ff XX ff ff ff ff ...........X.... 90: ff ff ff ff ff ff ff ff ff ff ff ff XX ff ff ff ............X... a0: 72 5e d1 bb bb 7a 6e 7f d9 d8 ff ff 00 ff 00 ec r^???zn???.....? b0: b0 df ff fd be bf ff XX b9 fd ff 6f 77 ef 00 00 ??.???.X??.ow?.. c0: 01 00 10 00 00 00 00 56 2d XX 01 40 41 85 80 5c ?.?....V-X?@A??\ d0: ff ff 00 ff ff ff 00 00 30 70 ff ff 19 0f ff ff ........0p..??.. e0: 70 5e d1 bb bb 78 6c 7f d9 d5 ff ff 00 XX 00 ed p^???xl???...X.? f0: b0 df ff fd bd bf ff ff b9 fd ff 6f 77 ef 00 00 ??.???..??.ow?.. 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef 00: ff ff ff ff ff ff XX XX XX ff ff ff ff ff ff ff ......XXX....... 10: ff ff ff ff ff XX XX ff ff ff ff XX ff ff ff ff .....XX....X.... 20: 70 XX d1 ba bc 78 6e 7f de d8 ff ff 00 ff 00 ed pX???xn???.....? 30: b0 df ff fd be bf ff ff b9 fd ff 6f 77 ef 00 00 ??.???..??.ow?.. 40: 01 00 10 00 00 00 00 56 2d 03 01 40 41 85 80 5c ?.?....V-??@A??\ 50: ff ff 00 ff ff ff 00 00 30 70 ff ff 19 0f ff ff ........0p..??.. 60: 70 5e d1 bb bb 78 6d 7f de d7 ff ff 00 ff 00 ed p^???xm???.....? 70: b0 df ff fd be bf ff ff b9 fd ff 6f 77 ef 00 00 ??.???..??.ow?.. 80: ff ff ff ff ff ff XX XX ff ff ff ff ff ff ff ff ......XX........ 90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ a0: 71 XX d1 bb bb 78 6d 7f XX d8 ff ff 00 ff 00 ed qX???xm?X?.....? b0: b0 df ff fd be bf ff ff b9 fd ff 6f 77 ef 00 00 ??.???..??.ow?.. c0: 01 00 10 00 00 00 00 56 2d 03 01 40 41 84 80 5c ?.?....V-??@A??\ d0: ff ff 00 ff ff ff 00 00 30 70 ff ff 19 0f ff ff ........0p..??.. e0: 73 5d d1 bb bb 7a XX 7f de d8 ff ff 00 ff 00 ed s]???zX???.....? f0: b0 df ff fd be bf ff ff b9 fd ff 6f 77 ef 00 00 ??.???..??.ow?.. --=-xrZGmktWKvFnUazB2Duz-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/