Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965180AbaLKV6Q (ORCPT ); Thu, 11 Dec 2014 16:58:16 -0500 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:49477 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964837AbaLKV6O (ORCPT ); Thu, 11 Dec 2014 16:58:14 -0500 Date: Thu, 11 Dec 2014 16:57:32 -0500 From: Chris Mason Subject: Re: frequent lockups in 3.18rc4 To: Sasha Levin CC: Linus Torvalds , Dave Jones , Mike Galbraith , Ingo Molnar , Peter Zijlstra , =?iso-8859-1?q?D=E2niel?= Fraga , "Paul E. McKenney" , Linux Kernel Mailing List Message-ID: <1418335052.4845.17@mail.thefacebook.com> In-Reply-To: <548A122C.8000906@oracle.com> References: <20141201230339.GA20487@ret.masoncoding.com> <1417529606.3924.26.camel@maggy.simpson.net> <1417540493.21136.3@mail.thefacebook.com> <20141203184111.GA32005@redhat.com> <20141205171501.GA1320@redhat.com> <1417806247.4845.1@mail.thefacebook.com> <20141211145408.GB16800@redhat.com> <548A122C.8000906@oracle.com> X-Mailer: geary/0.8.2 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8"; format=flowed X-Originating-IP: [192.168.16.4] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.13.68,1.0.33,0.0.0000 definitions=2014-12-11_05:2014-12-11,2014-12-11,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 kscore.is_bulkscore=2.77555756156289e-16 kscore.compositescore=0 circleOfTrustscore=120.659590407225 compositescore=0.140620555742602 urlsuspect_oldscore=0.140620555742602 suspectscore=0 recipient_domain_to_sender_totalscore=0 phishscore=0 bulkscore=0 kscore.is_spamscore=0 recipient_to_sender_totalscore=0 recipient_domain_to_sender_domain_totalscore=2524143 rbsscore=0.140620555742602 spamscore=0 recipient_to_sender_domain_totalscore=8 urlsuspectscore=0.9 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1402240000 definitions=main-1412110206 X-FB-Internal: deliver Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Dec 11, 2014 at 4:52 PM, Sasha Levin wrote: > On 12/11/2014 04:49 PM, Linus Torvalds wrote: >> On Thu, Dec 11, 2014 at 6:54 AM, Dave Jones >> wrote: >>> > >>> > So either one of those 'good's actually wasn't, or I'm just >>> cursed. >> Even if there was a good that wasn't, that last "bad" >> (6f929b4e5a02) >> is already sufficient just on its own to say that likely v3.16 >> already >> had the problem. >> >> Just do >> >> gitk v3.16..6f929b4e5a02 >> >> and cry. >> >> (or "git diff --stat -M v3.16...6f929b4e5a02" to see what that >> commit >> brought in from the common ancestor). >> >> So I'd call that bisect a failure, and your "v3.16 is fine" is >> actually suspect after all. Which *might* mean that it's some >> hardware >> issue after all. Or there are multiple different problems, and while >> v3.16 was fine, the problem was introduced earlier (in the common >> ancestor of that staging tree), then fixed for 3.16, and then >> re-introduced later again. > > Is it possible that Dave and myself were seeing the same problem after > all? > > I'll go bisect it even further back... For both of you, I'm curious how long 3.18 lasts if you turn off the serial console (and netconsole) completely. -chris -- 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/