Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754171AbYCST1w (ORCPT ); Wed, 19 Mar 2008 15:27:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753313AbYCSTZW (ORCPT ); Wed, 19 Mar 2008 15:25:22 -0400 Received: from einhorn.in-berlin.de ([192.109.42.8]:36342 "EHLO einhorn.in-berlin.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752775AbYCSTZK (ORCPT ); Wed, 19 Mar 2008 15:25:10 -0400 X-Envelope-From: stefanr@s5r6.in-berlin.de Message-ID: <47E0D9A7.1040308@s5r6.in-berlin.de> Date: Wed, 19 Mar 2008 10:15:19 +0100 From: Stefan Richter User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.12) Gecko/20080219 SeaMonkey/1.1.8 MIME-Version: 1.0 To: Thomas Meyer CC: Adrian Bunk , "Rafael J. Wysocki" , LKML , Andrew Morton , Linus Torvalds , Natalie Protasevich Subject: Re: 2.6.25-rc5: Reported regressions from 2.6.24 References: <200803110014.52985.rjw@sisk.pl> <47D67992.8010308@s5r6.in-berlin.de> <20080311130449.GA21157@cs181133002.pp.htv.fi> <47DEE282.8060904@m3y3r.de> In-Reply-To: <47DEE282.8060904@m3y3r.de> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2059 Lines: 61 Thomas Meyer wrote: > Adrian Bunk schrieb: >> On Tue, Mar 11, 2008 at 01:22:42PM +0100, Stefan Richter wrote: >> >>> Rafael J. Wysocki wrote: >>> >>>> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10080 I have reopened, re-assigned, and slightly renamed that bug now. >>>> Subject : 2.6.25-rc2: ohci1394 problem >>>> Submitter : Thomas Meyer >>>> Date : 2008-02-20 08:47 >>>> References : http://lkml.org/lkml/2008/2/20/58 >>>> Handled-By : Stefan Richter This bug is not handled by me. >>>> >>> Thomas wrote on 2008-02-25: >>> ''So i did a "make clean" and a "make" (not a make >>> -j3 as i use to do) and recompiled 2.6.25-rc3 and now it works again. >>> Case closed under strange error.'' >>> ... >>> >> >> Although I don't think this would cause the error, it would be nice if >> Thomas could verify that the -j3 did not cause the problem. >> > I still cannot *believe* this bug, but i just checked out the latest > kernel and did a make distclean and a make (with mr. bunks patch > applied) and there it is again: > $ dmesg > > (cut) > [ 464.852986] ohci1394: fw-host0: physical posted write error [...] > [ 464.898957] ohci1394: fw-host0: Unhandled interrupt(s) 0xfc7cfe0c > and so on.... > > $ git describe > v2.6.25-rc6-14-gbde4f8f > > As i already wrote: I tried to bisect this behavior, but with no result. > > And Stefan didn't change anything in the involved drivers. I have no > idea what could cause this kind of bug! The messages which Thomas posted result from ohci1394 getting ~0 (i.e. 0xffffffff) from some or all MMIO reads. This is not a FireWire driver bug. MMIO has been broken by something after 2.6.24. -- Stefan Richter -=====-==--- --== =--== http://arcgraph.de/sr/ -- 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/